/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 11:44:41,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 11:44:41,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 11:44:41,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 11:44:41,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-08-21 11:44:41,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 11:44:41,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 11:44:41,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-21 11:44:41,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-21 11:44:41,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 11:44:41,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 11:44:41,457 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 11:44:41,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 11:44:41,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:44:41,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 11:44:41,459 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 11:44:41,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 11:44:41,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 11:44:41,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 11:44:41,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 11:44:41,721 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 11:44:41,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-08-21 11:44:41,770 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea7796b6/ba439dfe63904b0d87b7b55bb2d83be0/FLAG6b2bb9b62 [2021-08-21 11:44:42,304 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 11:44:42,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-08-21 11:44:42,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea7796b6/ba439dfe63904b0d87b7b55bb2d83be0/FLAG6b2bb9b62 [2021-08-21 11:44:42,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ea7796b6/ba439dfe63904b0d87b7b55bb2d83be0 [2021-08-21 11:44:42,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 11:44:42,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 11:44:42,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 11:44:42,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 11:44:42,758 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 11:44:42,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:42" (1/1) ... [2021-08-21 11:44:42,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@532da702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:42, skipping insertion in model container [2021-08-21 11:44:42,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 11:44:42" (1/1) ... [2021-08-21 11:44:42,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 11:44:42,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 11:44:43,304 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-08-21 11:44:43,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:44:43,355 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 11:44:43,395 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-08-21 11:44:43,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 11:44:43,524 INFO L208 MainTranslator]: Completed translation [2021-08-21 11:44:43,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43 WrapperNode [2021-08-21 11:44:43,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 11:44:43,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 11:44:43,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 11:44:43,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 11:44:43,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 11:44:43,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 11:44:43,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 11:44:43,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 11:44:43,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 11:44:43,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 11:44:43,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 11:44:43,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 11:44:43,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (1/1) ... [2021-08-21 11:44:43,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 11:44:43,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 11:44:43,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 11:44:43,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 11:44:43,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 11:44:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 11:44:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-08-21 11:44:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-21 11:44:43,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 11:44:43,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 11:44:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-08-21 11:44:43,703 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-08-21 11:44:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 11:44:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 11:44:43,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 11:44:43,704 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 11:44:44,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 11:44:44,290 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-08-21 11:44:44,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:44 BoogieIcfgContainer [2021-08-21 11:44:44,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 11:44:44,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 11:44:44,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 11:44:44,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 11:44:44,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 11:44:42" (1/3) ... [2021-08-21 11:44:44,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6160257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:44, skipping insertion in model container [2021-08-21 11:44:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 11:44:43" (2/3) ... [2021-08-21 11:44:44,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6160257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 11:44:44, skipping insertion in model container [2021-08-21 11:44:44,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 11:44:44" (3/3) ... [2021-08-21 11:44:44,296 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-08-21 11:44:44,299 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 11:44:44,299 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 11:44:44,299 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-08-21 11:44:44,299 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 11:44:44,350 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,350 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,351 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,352 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,353 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,354 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,368 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,368 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,370 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,372 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,372 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,372 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,372 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,373 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,380 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,381 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,381 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,381 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 11:44:44,389 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-21 11:44:44,418 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 11:44:44,444 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 11:44:44,444 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-21 11:44:44,452 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 166 places, 168 transitions, 352 flow [2021-08-21 11:44:44,697 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8104 states, 8094 states have (on average 2.8427230046948355) internal successors, (23009), 8103 states have internal predecessors, (23009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 8104 states, 8094 states have (on average 2.8427230046948355) internal successors, (23009), 8103 states have internal predecessors, (23009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:44,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-08-21 11:44:44,760 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:44,760 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:44,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:44,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:44,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1349644419, now seen corresponding path program 1 times [2021-08-21 11:44:44,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:44,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547415809] [2021-08-21 11:44:44,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:44,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:45,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:45,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547415809] [2021-08-21 11:44:45,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547415809] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:45,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:45,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:44:45,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729381469] [2021-08-21 11:44:45,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:44:45,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:45,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:44:45,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:44:45,177 INFO L87 Difference]: Start difference. First operand has 8104 states, 8094 states have (on average 2.8427230046948355) internal successors, (23009), 8103 states have internal predecessors, (23009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:45,479 INFO L93 Difference]: Finished difference Result 7706 states and 21486 transitions. [2021-08-21 11:44:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 11:44:45,481 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-08-21 11:44:45,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:45,552 INFO L225 Difference]: With dead ends: 7706 [2021-08-21 11:44:45,552 INFO L226 Difference]: Without dead ends: 6328 [2021-08-21 11:44:45,554 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 96.6ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:44:45,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6328 states. [2021-08-21 11:44:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6328 to 6327. [2021-08-21 11:44:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6327 states, 6320 states have (on average 2.7783227848101264) internal successors, (17559), 6326 states have internal predecessors, (17559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:45,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6327 states to 6327 states and 17559 transitions. [2021-08-21 11:44:45,831 INFO L78 Accepts]: Start accepts. Automaton has 6327 states and 17559 transitions. Word has length 36 [2021-08-21 11:44:45,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:45,832 INFO L470 AbstractCegarLoop]: Abstraction has 6327 states and 17559 transitions. [2021-08-21 11:44:45,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:45,833 INFO L276 IsEmpty]: Start isEmpty. Operand 6327 states and 17559 transitions. [2021-08-21 11:44:45,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-08-21 11:44:45,834 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:45,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:45,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 11:44:45,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:45,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:45,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1566262659, now seen corresponding path program 1 times [2021-08-21 11:44:45,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:45,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907647726] [2021-08-21 11:44:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:45,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:45,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:45,999 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907647726] [2021-08-21 11:44:45,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907647726] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:45,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:45,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:44:45,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743534980] [2021-08-21 11:44:46,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:44:46,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:46,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:44:46,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:44:46,003 INFO L87 Difference]: Start difference. First operand 6327 states and 17559 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:46,155 INFO L93 Difference]: Finished difference Result 6329 states and 17561 transitions. [2021-08-21 11:44:46,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 11:44:46,155 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-08-21 11:44:46,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:46,177 INFO L225 Difference]: With dead ends: 6329 [2021-08-21 11:44:46,177 INFO L226 Difference]: Without dead ends: 6329 [2021-08-21 11:44:46,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 60.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 11:44:46,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6329 states. [2021-08-21 11:44:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6329 to 6325. [2021-08-21 11:44:46,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6325 states, 6319 states have (on average 2.7784459566387087) internal successors, (17557), 6324 states have internal predecessors, (17557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6325 states to 6325 states and 17557 transitions. [2021-08-21 11:44:46,330 INFO L78 Accepts]: Start accepts. Automaton has 6325 states and 17557 transitions. Word has length 42 [2021-08-21 11:44:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:46,330 INFO L470 AbstractCegarLoop]: Abstraction has 6325 states and 17557 transitions. [2021-08-21 11:44:46,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand 6325 states and 17557 transitions. [2021-08-21 11:44:46,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-21 11:44:46,332 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:46,332 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:46,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 11:44:46,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:46,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:46,333 INFO L82 PathProgramCache]: Analyzing trace with hash -1972985873, now seen corresponding path program 1 times [2021-08-21 11:44:46,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:46,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960769567] [2021-08-21 11:44:46,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:46,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:46,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:46,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:46,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960769567] [2021-08-21 11:44:46,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960769567] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:46,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:46,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:44:46,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403862272] [2021-08-21 11:44:46,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:44:46,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:46,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:44:46,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:44:46,413 INFO L87 Difference]: Start difference. First operand 6325 states and 17557 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:46,693 INFO L93 Difference]: Finished difference Result 9312 states and 25787 transitions. [2021-08-21 11:44:46,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 11:44:46,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-08-21 11:44:46,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:46,726 INFO L225 Difference]: With dead ends: 9312 [2021-08-21 11:44:46,726 INFO L226 Difference]: Without dead ends: 9312 [2021-08-21 11:44:46,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 70.1ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:44:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9312 states. [2021-08-21 11:44:46,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9312 to 7107. [2021-08-21 11:44:46,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7107 states, 7102 states have (on average 2.7793579273444102) internal successors, (19739), 7106 states have internal predecessors, (19739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7107 states to 7107 states and 19739 transitions. [2021-08-21 11:44:46,903 INFO L78 Accepts]: Start accepts. Automaton has 7107 states and 19739 transitions. Word has length 60 [2021-08-21 11:44:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:46,904 INFO L470 AbstractCegarLoop]: Abstraction has 7107 states and 19739 transitions. [2021-08-21 11:44:46,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:46,905 INFO L276 IsEmpty]: Start isEmpty. Operand 7107 states and 19739 transitions. [2021-08-21 11:44:46,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-21 11:44:46,910 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:46,910 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:46,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 11:44:46,911 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:46,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:46,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1298231863, now seen corresponding path program 1 times [2021-08-21 11:44:46,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:46,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094489230] [2021-08-21 11:44:46,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:46,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:47,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:47,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:47,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094489230] [2021-08-21 11:44:47,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094489230] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:47,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:47,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 11:44:47,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340402843] [2021-08-21 11:44:47,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 11:44:47,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:47,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 11:44:47,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 11:44:47,016 INFO L87 Difference]: Start difference. First operand 7107 states and 19739 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:47,287 INFO L93 Difference]: Finished difference Result 10094 states and 27822 transitions. [2021-08-21 11:44:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:44:47,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-08-21 11:44:47,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:47,308 INFO L225 Difference]: With dead ends: 10094 [2021-08-21 11:44:47,308 INFO L226 Difference]: Without dead ends: 8477 [2021-08-21 11:44:47,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 107.4ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-21 11:44:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8477 states. [2021-08-21 11:44:47,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8477 to 8183. [2021-08-21 11:44:47,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8183 states, 8179 states have (on average 2.782369482821861) internal successors, (22757), 8182 states have internal predecessors, (22757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8183 states to 8183 states and 22757 transitions. [2021-08-21 11:44:47,511 INFO L78 Accepts]: Start accepts. Automaton has 8183 states and 22757 transitions. Word has length 66 [2021-08-21 11:44:47,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:47,512 INFO L470 AbstractCegarLoop]: Abstraction has 8183 states and 22757 transitions. [2021-08-21 11:44:47,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,512 INFO L276 IsEmpty]: Start isEmpty. Operand 8183 states and 22757 transitions. [2021-08-21 11:44:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-08-21 11:44:47,519 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:47,519 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:47,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 11:44:47,519 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:47,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1953520504, now seen corresponding path program 1 times [2021-08-21 11:44:47,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:47,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233349287] [2021-08-21 11:44:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:47,520 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:47,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:47,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233349287] [2021-08-21 11:44:47,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233349287] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:47,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:47,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 11:44:47,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289827716] [2021-08-21 11:44:47,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-21 11:44:47,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-21 11:44:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-21 11:44:47,592 INFO L87 Difference]: Start difference. First operand 8183 states and 22757 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:47,680 INFO L93 Difference]: Finished difference Result 2969 states and 8012 transitions. [2021-08-21 11:44:47,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-21 11:44:47,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-08-21 11:44:47,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:47,686 INFO L225 Difference]: With dead ends: 2969 [2021-08-21 11:44:47,686 INFO L226 Difference]: Without dead ends: 2969 [2021-08-21 11:44:47,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 21.7ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-21 11:44:47,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-08-21 11:44:47,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2969. [2021-08-21 11:44:47,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2967 states have (on average 2.700370744860128) internal successors, (8012), 2968 states have internal predecessors, (8012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 8012 transitions. [2021-08-21 11:44:47,739 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 8012 transitions. Word has length 80 [2021-08-21 11:44:47,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:47,739 INFO L470 AbstractCegarLoop]: Abstraction has 2969 states and 8012 transitions. [2021-08-21 11:44:47,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:47,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 8012 transitions. [2021-08-21 11:44:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:47,745 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:47,745 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:47,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 11:44:47,745 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:47,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:47,746 INFO L82 PathProgramCache]: Analyzing trace with hash -475830840, now seen corresponding path program 1 times [2021-08-21 11:44:47,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:47,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086179100] [2021-08-21 11:44:47,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:47,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:48,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:48,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086179100] [2021-08-21 11:44:48,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086179100] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:48,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:48,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:44:48,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076700069] [2021-08-21 11:44:48,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:44:48,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:48,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:44:48,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:44:48,181 INFO L87 Difference]: Start difference. First operand 2969 states and 8012 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:48,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:48,922 INFO L93 Difference]: Finished difference Result 3968 states and 10347 transitions. [2021-08-21 11:44:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-21 11:44:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:48,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:48,930 INFO L225 Difference]: With dead ends: 3968 [2021-08-21 11:44:48,930 INFO L226 Difference]: Without dead ends: 3968 [2021-08-21 11:44:48,930 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 532.9ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-08-21 11:44:48,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2021-08-21 11:44:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3603. [2021-08-21 11:44:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 3601 states have (on average 2.6628714246042766) internal successors, (9589), 3602 states have internal predecessors, (9589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:48,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 9589 transitions. [2021-08-21 11:44:48,977 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 9589 transitions. Word has length 113 [2021-08-21 11:44:48,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:48,977 INFO L470 AbstractCegarLoop]: Abstraction has 3603 states and 9589 transitions. [2021-08-21 11:44:48,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 9589 transitions. [2021-08-21 11:44:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:48,983 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:48,983 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:48,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 11:44:48,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash -2121018904, now seen corresponding path program 2 times [2021-08-21 11:44:48,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:48,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578852993] [2021-08-21 11:44:48,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:48,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:49,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:49,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:49,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:49,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578852993] [2021-08-21 11:44:49,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578852993] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:49,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:49,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:44:49,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987302141] [2021-08-21 11:44:49,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:44:49,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:49,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:44:49,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:44:49,376 INFO L87 Difference]: Start difference. First operand 3603 states and 9589 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:50,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:50,043 INFO L93 Difference]: Finished difference Result 4345 states and 11187 transitions. [2021-08-21 11:44:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-21 11:44:50,043 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:50,052 INFO L225 Difference]: With dead ends: 4345 [2021-08-21 11:44:50,052 INFO L226 Difference]: Without dead ends: 4345 [2021-08-21 11:44:50,053 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 516.8ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-08-21 11:44:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4345 states. [2021-08-21 11:44:50,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4345 to 3636. [2021-08-21 11:44:50,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3636 states, 3634 states have (on average 2.6601541001651072) internal successors, (9667), 3635 states have internal predecessors, (9667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:50,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3636 states to 3636 states and 9667 transitions. [2021-08-21 11:44:50,116 INFO L78 Accepts]: Start accepts. Automaton has 3636 states and 9667 transitions. Word has length 113 [2021-08-21 11:44:50,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:50,116 INFO L470 AbstractCegarLoop]: Abstraction has 3636 states and 9667 transitions. [2021-08-21 11:44:50,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states and 9667 transitions. [2021-08-21 11:44:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:50,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:50,123 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:50,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 11:44:50,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:50,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:50,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1083503876, now seen corresponding path program 3 times [2021-08-21 11:44:50,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:50,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222676105] [2021-08-21 11:44:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:50,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:50,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:50,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222676105] [2021-08-21 11:44:50,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222676105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:50,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:50,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:44:50,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703472589] [2021-08-21 11:44:50,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:44:50,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:50,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:44:50,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:44:50,627 INFO L87 Difference]: Start difference. First operand 3636 states and 9667 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:51,258 INFO L93 Difference]: Finished difference Result 3995 states and 10420 transitions. [2021-08-21 11:44:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:44:51,259 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:51,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:51,267 INFO L225 Difference]: With dead ends: 3995 [2021-08-21 11:44:51,268 INFO L226 Difference]: Without dead ends: 3995 [2021-08-21 11:44:51,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 488.9ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-08-21 11:44:51,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-08-21 11:44:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3504. [2021-08-21 11:44:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3504 states, 3502 states have (on average 2.671330668189606) internal successors, (9355), 3503 states have internal predecessors, (9355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:51,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3504 states to 3504 states and 9355 transitions. [2021-08-21 11:44:51,400 INFO L78 Accepts]: Start accepts. Automaton has 3504 states and 9355 transitions. Word has length 113 [2021-08-21 11:44:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:51,400 INFO L470 AbstractCegarLoop]: Abstraction has 3504 states and 9355 transitions. [2021-08-21 11:44:51,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3504 states and 9355 transitions. [2021-08-21 11:44:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:51,423 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:51,423 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:51,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 11:44:51,423 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:51,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:51,424 INFO L82 PathProgramCache]: Analyzing trace with hash -223053210, now seen corresponding path program 4 times [2021-08-21 11:44:51,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:51,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636211043] [2021-08-21 11:44:51,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:51,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:51,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:51,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:51,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636211043] [2021-08-21 11:44:51,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636211043] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:51,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:51,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:44:51,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509733026] [2021-08-21 11:44:51,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:44:51,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:51,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:44:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:44:51,989 INFO L87 Difference]: Start difference. First operand 3504 states and 9355 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:53,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:53,509 INFO L93 Difference]: Finished difference Result 6044 states and 15865 transitions. [2021-08-21 11:44:53,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:44:53,510 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:53,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:53,535 INFO L225 Difference]: With dead ends: 6044 [2021-08-21 11:44:53,536 INFO L226 Difference]: Without dead ends: 6044 [2021-08-21 11:44:53,540 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1201.6ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-08-21 11:44:53,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2021-08-21 11:44:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 4264. [2021-08-21 11:44:53,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.7017832003754108) internal successors, (11515), 4263 states have internal predecessors, (11515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:53,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11515 transitions. [2021-08-21 11:44:53,604 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11515 transitions. Word has length 113 [2021-08-21 11:44:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:53,605 INFO L470 AbstractCegarLoop]: Abstraction has 4264 states and 11515 transitions. [2021-08-21 11:44:53,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11515 transitions. [2021-08-21 11:44:53,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:53,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:53,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:53,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 11:44:53,613 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:53,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:53,613 INFO L82 PathProgramCache]: Analyzing trace with hash -837899718, now seen corresponding path program 5 times [2021-08-21 11:44:53,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:53,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102321945] [2021-08-21 11:44:53,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:53,614 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:53,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:54,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:54,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102321945] [2021-08-21 11:44:54,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102321945] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:54,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:54,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:44:54,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509825570] [2021-08-21 11:44:54,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:44:54,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:54,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:44:54,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:44:54,163 INFO L87 Difference]: Start difference. First operand 4264 states and 11515 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:55,512 INFO L93 Difference]: Finished difference Result 5888 states and 15333 transitions. [2021-08-21 11:44:55,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:44:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:55,521 INFO L225 Difference]: With dead ends: 5888 [2021-08-21 11:44:55,521 INFO L226 Difference]: Without dead ends: 5888 [2021-08-21 11:44:55,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 1112.7ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:44:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2021-08-21 11:44:55,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 4274. [2021-08-21 11:44:55,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4274 states, 4272 states have (on average 2.701310861423221) internal successors, (11540), 4273 states have internal predecessors, (11540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:55,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4274 states to 4274 states and 11540 transitions. [2021-08-21 11:44:55,592 INFO L78 Accepts]: Start accepts. Automaton has 4274 states and 11540 transitions. Word has length 113 [2021-08-21 11:44:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:55,593 INFO L470 AbstractCegarLoop]: Abstraction has 4274 states and 11540 transitions. [2021-08-21 11:44:55,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 4274 states and 11540 transitions. [2021-08-21 11:44:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:55,600 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:55,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:55,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-21 11:44:55,600 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:55,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:55,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1388414182, now seen corresponding path program 6 times [2021-08-21 11:44:55,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:55,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078575759] [2021-08-21 11:44:55,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:55,602 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:56,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:56,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078575759] [2021-08-21 11:44:56,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078575759] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:56,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:56,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:44:56,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967737935] [2021-08-21 11:44:56,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:44:56,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:44:56,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:44:56,149 INFO L87 Difference]: Start difference. First operand 4274 states and 11540 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:57,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:57,189 INFO L93 Difference]: Finished difference Result 5167 states and 13432 transitions. [2021-08-21 11:44:57,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:44:57,190 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:57,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:57,199 INFO L225 Difference]: With dead ends: 5167 [2021-08-21 11:44:57,199 INFO L226 Difference]: Without dead ends: 5167 [2021-08-21 11:44:57,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 798.9ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:44:57,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5167 states. [2021-08-21 11:44:57,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5167 to 4304. [2021-08-21 11:44:57,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4302 states have (on average 2.699907019990702) internal successors, (11615), 4303 states have internal predecessors, (11615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:57,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 11615 transitions. [2021-08-21 11:44:57,276 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 11615 transitions. Word has length 113 [2021-08-21 11:44:57,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:57,277 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 11615 transitions. [2021-08-21 11:44:57,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:57,277 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 11615 transitions. [2021-08-21 11:44:57,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:57,287 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:57,287 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:57,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-21 11:44:57,287 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:57,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:57,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1577057026, now seen corresponding path program 7 times [2021-08-21 11:44:57,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:57,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838503364] [2021-08-21 11:44:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:57,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:57,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:57,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:57,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838503364] [2021-08-21 11:44:57,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838503364] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:57,734 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:57,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:44:57,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627035141] [2021-08-21 11:44:57,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:44:57,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:57,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:44:57,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:44:57,737 INFO L87 Difference]: Start difference. First operand 4304 states and 11615 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:58,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:44:58,890 INFO L93 Difference]: Finished difference Result 10029 states and 26446 transitions. [2021-08-21 11:44:58,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:44:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:44:58,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:44:58,906 INFO L225 Difference]: With dead ends: 10029 [2021-08-21 11:44:58,906 INFO L226 Difference]: Without dead ends: 10029 [2021-08-21 11:44:58,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 868.4ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-08-21 11:44:58,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10029 states. [2021-08-21 11:44:58,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10029 to 4376. [2021-08-21 11:44:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4376 states, 4374 states have (on average 2.7048468221307727) internal successors, (11831), 4375 states have internal predecessors, (11831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 11831 transitions. [2021-08-21 11:44:59,005 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 11831 transitions. Word has length 113 [2021-08-21 11:44:59,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:44:59,005 INFO L470 AbstractCegarLoop]: Abstraction has 4376 states and 11831 transitions. [2021-08-21 11:44:59,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:44:59,005 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 11831 transitions. [2021-08-21 11:44:59,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:44:59,011 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:44:59,011 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:44:59,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-21 11:44:59,012 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:44:59,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:44:59,012 INFO L82 PathProgramCache]: Analyzing trace with hash 2080000600, now seen corresponding path program 8 times [2021-08-21 11:44:59,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:44:59,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99173854] [2021-08-21 11:44:59,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:44:59,012 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:44:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:44:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:44:59,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:44:59,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99173854] [2021-08-21 11:44:59,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99173854] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:44:59,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:44:59,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:44:59,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225854201] [2021-08-21 11:44:59,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:44:59,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:44:59,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:44:59,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:44:59,456 INFO L87 Difference]: Start difference. First operand 4376 states and 11831 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:00,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:00,898 INFO L93 Difference]: Finished difference Result 9127 states and 23982 transitions. [2021-08-21 11:45:00,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:00,899 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:00,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:00,914 INFO L225 Difference]: With dead ends: 9127 [2021-08-21 11:45:00,915 INFO L226 Difference]: Without dead ends: 9127 [2021-08-21 11:45:00,915 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1164.3ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:00,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9127 states. [2021-08-21 11:45:00,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9127 to 4316. [2021-08-21 11:45:00,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4316 states, 4314 states have (on average 2.7007417709782104) internal successors, (11651), 4315 states have internal predecessors, (11651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:00,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4316 states to 4316 states and 11651 transitions. [2021-08-21 11:45:00,998 INFO L78 Accepts]: Start accepts. Automaton has 4316 states and 11651 transitions. Word has length 113 [2021-08-21 11:45:00,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:00,999 INFO L470 AbstractCegarLoop]: Abstraction has 4316 states and 11651 transitions. [2021-08-21 11:45:00,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:00,999 INFO L276 IsEmpty]: Start isEmpty. Operand 4316 states and 11651 transitions. [2021-08-21 11:45:01,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:01,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:01,005 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:01,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-21 11:45:01,006 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:01,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:01,006 INFO L82 PathProgramCache]: Analyzing trace with hash 2123228710, now seen corresponding path program 9 times [2021-08-21 11:45:01,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:01,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947670892] [2021-08-21 11:45:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:01,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:01,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:01,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:01,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947670892] [2021-08-21 11:45:01,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947670892] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:01,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:01,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:01,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711060438] [2021-08-21 11:45:01,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:01,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:01,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:01,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:01,613 INFO L87 Difference]: Start difference. First operand 4316 states and 11651 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:03,698 INFO L93 Difference]: Finished difference Result 8634 states and 22549 transitions. [2021-08-21 11:45:03,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-21 11:45:03,698 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:03,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:03,713 INFO L225 Difference]: With dead ends: 8634 [2021-08-21 11:45:03,713 INFO L226 Difference]: Without dead ends: 8634 [2021-08-21 11:45:03,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 1758.6ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-08-21 11:45:03,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8634 states. [2021-08-21 11:45:03,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8634 to 4450. [2021-08-21 11:45:03,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 4448 states have (on average 2.7050359712230216) internal successors, (12032), 4449 states have internal predecessors, (12032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 12032 transitions. [2021-08-21 11:45:03,814 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 12032 transitions. Word has length 113 [2021-08-21 11:45:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:03,815 INFO L470 AbstractCegarLoop]: Abstraction has 4450 states and 12032 transitions. [2021-08-21 11:45:03,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 12032 transitions. [2021-08-21 11:45:03,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:03,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:03,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:03,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-21 11:45:03,824 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1148249604, now seen corresponding path program 10 times [2021-08-21 11:45:03,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:03,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877507725] [2021-08-21 11:45:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:03,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:03,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:04,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:04,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:04,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877507725] [2021-08-21 11:45:04,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877507725] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:04,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:04,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:04,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277904317] [2021-08-21 11:45:04,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:04,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:04,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:04,369 INFO L87 Difference]: Start difference. First operand 4450 states and 12032 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:06,007 INFO L93 Difference]: Finished difference Result 6897 states and 17854 transitions. [2021-08-21 11:45:06,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:06,019 INFO L225 Difference]: With dead ends: 6897 [2021-08-21 11:45:06,019 INFO L226 Difference]: Without dead ends: 6897 [2021-08-21 11:45:06,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1301.1ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:06,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6897 states. [2021-08-21 11:45:06,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 4456. [2021-08-21 11:45:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4456 states, 4454 states have (on average 2.7047597665020207) internal successors, (12047), 4455 states have internal predecessors, (12047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4456 states to 4456 states and 12047 transitions. [2021-08-21 11:45:06,097 INFO L78 Accepts]: Start accepts. Automaton has 4456 states and 12047 transitions. Word has length 113 [2021-08-21 11:45:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:06,097 INFO L470 AbstractCegarLoop]: Abstraction has 4456 states and 12047 transitions. [2021-08-21 11:45:06,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:06,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4456 states and 12047 transitions. [2021-08-21 11:45:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:06,104 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:06,104 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:06,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-21 11:45:06,104 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:06,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:06,104 INFO L82 PathProgramCache]: Analyzing trace with hash 519357442, now seen corresponding path program 11 times [2021-08-21 11:45:06,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:06,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880626414] [2021-08-21 11:45:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:06,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:06,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:06,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:06,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880626414] [2021-08-21 11:45:06,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880626414] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:06,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:06,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:06,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473079656] [2021-08-21 11:45:06,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:06,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:06,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:06,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:06,687 INFO L87 Difference]: Start difference. First operand 4456 states and 12047 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:08,137 INFO L93 Difference]: Finished difference Result 6721 states and 17299 transitions. [2021-08-21 11:45:08,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:08,137 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:08,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:08,146 INFO L225 Difference]: With dead ends: 6721 [2021-08-21 11:45:08,146 INFO L226 Difference]: Without dead ends: 6721 [2021-08-21 11:45:08,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1155.7ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6721 states. [2021-08-21 11:45:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6721 to 4458. [2021-08-21 11:45:08,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 4456 states have (on average 2.7046678635547576) internal successors, (12052), 4457 states have internal predecessors, (12052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 12052 transitions. [2021-08-21 11:45:08,225 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 12052 transitions. Word has length 113 [2021-08-21 11:45:08,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:08,225 INFO L470 AbstractCegarLoop]: Abstraction has 4458 states and 12052 transitions. [2021-08-21 11:45:08,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:08,225 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 12052 transitions. [2021-08-21 11:45:08,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:08,233 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:08,233 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:08,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-21 11:45:08,233 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:08,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:08,234 INFO L82 PathProgramCache]: Analyzing trace with hash -650933210, now seen corresponding path program 12 times [2021-08-21 11:45:08,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:08,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756474335] [2021-08-21 11:45:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:08,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:08,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:08,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:08,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756474335] [2021-08-21 11:45:08,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756474335] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:08,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:08,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:08,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831041553] [2021-08-21 11:45:08,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:08,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:08,795 INFO L87 Difference]: Start difference. First operand 4458 states and 12052 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:10,299 INFO L93 Difference]: Finished difference Result 6589 states and 16994 transitions. [2021-08-21 11:45:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:10,299 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:10,309 INFO L225 Difference]: With dead ends: 6589 [2021-08-21 11:45:10,309 INFO L226 Difference]: Without dead ends: 6589 [2021-08-21 11:45:10,310 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1131.1ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6589 states. [2021-08-21 11:45:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6589 to 4458. [2021-08-21 11:45:10,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 4456 states have (on average 2.7046678635547576) internal successors, (12052), 4457 states have internal predecessors, (12052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 12052 transitions. [2021-08-21 11:45:10,381 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 12052 transitions. Word has length 113 [2021-08-21 11:45:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:10,381 INFO L470 AbstractCegarLoop]: Abstraction has 4458 states and 12052 transitions. [2021-08-21 11:45:10,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 12052 transitions. [2021-08-21 11:45:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:10,389 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:10,389 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:10,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-21 11:45:10,390 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:10,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1281054040, now seen corresponding path program 13 times [2021-08-21 11:45:10,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:10,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892797683] [2021-08-21 11:45:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:10,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:10,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:10,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892797683] [2021-08-21 11:45:10,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892797683] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:10,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:10,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:10,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496903549] [2021-08-21 11:45:10,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:10,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:10,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:10,959 INFO L87 Difference]: Start difference. First operand 4458 states and 12052 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:12,030 INFO L93 Difference]: Finished difference Result 5924 states and 15217 transitions. [2021-08-21 11:45:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:12,031 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:12,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:12,040 INFO L225 Difference]: With dead ends: 5924 [2021-08-21 11:45:12,040 INFO L226 Difference]: Without dead ends: 5924 [2021-08-21 11:45:12,041 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 811.2ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:12,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5924 states. [2021-08-21 11:45:12,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5924 to 4464. [2021-08-21 11:45:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4464 states, 4462 states have (on average 2.7043926490363064) internal successors, (12067), 4463 states have internal predecessors, (12067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:12,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 12067 transitions. [2021-08-21 11:45:12,116 INFO L78 Accepts]: Start accepts. Automaton has 4464 states and 12067 transitions. Word has length 113 [2021-08-21 11:45:12,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:12,116 INFO L470 AbstractCegarLoop]: Abstraction has 4464 states and 12067 transitions. [2021-08-21 11:45:12,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4464 states and 12067 transitions. [2021-08-21 11:45:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:12,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:12,123 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:12,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-21 11:45:12,123 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:12,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:12,124 INFO L82 PathProgramCache]: Analyzing trace with hash -545540906, now seen corresponding path program 14 times [2021-08-21 11:45:12,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:12,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223410398] [2021-08-21 11:45:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:12,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:12,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:12,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:12,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223410398] [2021-08-21 11:45:12,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223410398] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:12,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:12,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:12,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365300273] [2021-08-21 11:45:12,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:12,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:12,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:12,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:12,659 INFO L87 Difference]: Start difference. First operand 4464 states and 12067 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:13,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:13,686 INFO L93 Difference]: Finished difference Result 6016 states and 15392 transitions. [2021-08-21 11:45:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:13,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:13,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:13,693 INFO L225 Difference]: With dead ends: 6016 [2021-08-21 11:45:13,693 INFO L226 Difference]: Without dead ends: 6016 [2021-08-21 11:45:13,694 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 788.3ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:13,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6016 states. [2021-08-21 11:45:13,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6016 to 4466. [2021-08-21 11:45:13,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4464 states have (on average 2.704301075268817) internal successors, (12072), 4465 states have internal predecessors, (12072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:13,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 12072 transitions. [2021-08-21 11:45:13,759 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 12072 transitions. Word has length 113 [2021-08-21 11:45:13,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:13,759 INFO L470 AbstractCegarLoop]: Abstraction has 4466 states and 12072 transitions. [2021-08-21 11:45:13,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:13,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 12072 transitions. [2021-08-21 11:45:13,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:13,765 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:13,765 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:13,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-21 11:45:13,765 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:13,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:13,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1715831558, now seen corresponding path program 15 times [2021-08-21 11:45:13,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:13,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815478727] [2021-08-21 11:45:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:13,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:14,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:14,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815478727] [2021-08-21 11:45:14,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815478727] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:14,279 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:14,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:14,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498823367] [2021-08-21 11:45:14,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:14,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:14,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:14,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:14,280 INFO L87 Difference]: Start difference. First operand 4466 states and 12072 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:15,434 INFO L93 Difference]: Finished difference Result 5736 states and 14773 transitions. [2021-08-21 11:45:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:15,443 INFO L225 Difference]: With dead ends: 5736 [2021-08-21 11:45:15,443 INFO L226 Difference]: Without dead ends: 5736 [2021-08-21 11:45:15,443 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 919.3ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5736 states. [2021-08-21 11:45:15,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5736 to 4464. [2021-08-21 11:45:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4464 states, 4462 states have (on average 2.7043926490363064) internal successors, (12067), 4463 states have internal predecessors, (12067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:15,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 12067 transitions. [2021-08-21 11:45:15,509 INFO L78 Accepts]: Start accepts. Automaton has 4464 states and 12067 transitions. Word has length 113 [2021-08-21 11:45:15,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:15,510 INFO L470 AbstractCegarLoop]: Abstraction has 4464 states and 12067 transitions. [2021-08-21 11:45:15,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:15,510 INFO L276 IsEmpty]: Start isEmpty. Operand 4464 states and 12067 transitions. [2021-08-21 11:45:15,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:15,516 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:15,516 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:15,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-21 11:45:15,516 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:15,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:15,516 INFO L82 PathProgramCache]: Analyzing trace with hash -98740248, now seen corresponding path program 16 times [2021-08-21 11:45:15,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:15,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819768746] [2021-08-21 11:45:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:15,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:16,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:16,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819768746] [2021-08-21 11:45:16,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819768746] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:16,028 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:16,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:16,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191314599] [2021-08-21 11:45:16,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:16,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:16,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:16,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:16,029 INFO L87 Difference]: Start difference. First operand 4464 states and 12067 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:17,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:17,330 INFO L93 Difference]: Finished difference Result 7929 states and 20851 transitions. [2021-08-21 11:45:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:45:17,331 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:17,342 INFO L225 Difference]: With dead ends: 7929 [2021-08-21 11:45:17,342 INFO L226 Difference]: Without dead ends: 7929 [2021-08-21 11:45:17,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1064.0ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-08-21 11:45:17,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7929 states. [2021-08-21 11:45:17,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7929 to 4464. [2021-08-21 11:45:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4464 states, 4462 states have (on average 2.7043926490363064) internal successors, (12067), 4463 states have internal predecessors, (12067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:17,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4464 states to 4464 states and 12067 transitions. [2021-08-21 11:45:17,409 INFO L78 Accepts]: Start accepts. Automaton has 4464 states and 12067 transitions. Word has length 113 [2021-08-21 11:45:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:17,409 INFO L470 AbstractCegarLoop]: Abstraction has 4464 states and 12067 transitions. [2021-08-21 11:45:17,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 4464 states and 12067 transitions. [2021-08-21 11:45:17,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:17,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:17,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:17,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-08-21 11:45:17,415 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:17,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:17,415 INFO L82 PathProgramCache]: Analyzing trace with hash 404203326, now seen corresponding path program 17 times [2021-08-21 11:45:17,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:17,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875280053] [2021-08-21 11:45:17,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:17,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:17,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:17,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875280053] [2021-08-21 11:45:17,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875280053] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:17,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:17,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:17,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592261383] [2021-08-21 11:45:17,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:17,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:17,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:17,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:17,854 INFO L87 Difference]: Start difference. First operand 4464 states and 12067 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:19,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:19,258 INFO L93 Difference]: Finished difference Result 7027 states and 18387 transitions. [2021-08-21 11:45:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:19,258 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:19,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:19,268 INFO L225 Difference]: With dead ends: 7027 [2021-08-21 11:45:19,268 INFO L226 Difference]: Without dead ends: 7027 [2021-08-21 11:45:19,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1038.1ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:19,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7027 states. [2021-08-21 11:45:19,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7027 to 4404. [2021-08-21 11:45:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4404 states, 4402 states have (on average 2.7003634711494775) internal successors, (11887), 4403 states have internal predecessors, (11887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4404 states to 4404 states and 11887 transitions. [2021-08-21 11:45:19,342 INFO L78 Accepts]: Start accepts. Automaton has 4404 states and 11887 transitions. Word has length 113 [2021-08-21 11:45:19,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:19,342 INFO L470 AbstractCegarLoop]: Abstraction has 4404 states and 11887 transitions. [2021-08-21 11:45:19,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:19,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4404 states and 11887 transitions. [2021-08-21 11:45:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:19,348 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:19,348 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:19,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-08-21 11:45:19,349 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 447431436, now seen corresponding path program 18 times [2021-08-21 11:45:19,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:19,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122160956] [2021-08-21 11:45:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:19,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:19,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:19,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:19,779 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122160956] [2021-08-21 11:45:19,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122160956] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:19,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:19,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:19,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022991256] [2021-08-21 11:45:19,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:19,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:19,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:19,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:19,781 INFO L87 Difference]: Start difference. First operand 4404 states and 11887 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:21,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:21,646 INFO L93 Difference]: Finished difference Result 10475 states and 27419 transitions. [2021-08-21 11:45:21,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-21 11:45:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:21,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:21,663 INFO L225 Difference]: With dead ends: 10475 [2021-08-21 11:45:21,664 INFO L226 Difference]: Without dead ends: 10475 [2021-08-21 11:45:21,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1437.3ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-08-21 11:45:21,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10475 states. [2021-08-21 11:45:21,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10475 to 4440. [2021-08-21 11:45:21,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4440 states, 4438 states have (on average 2.702794051374493) internal successors, (11995), 4439 states have internal predecessors, (11995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:21,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4440 states to 4440 states and 11995 transitions. [2021-08-21 11:45:21,757 INFO L78 Accepts]: Start accepts. Automaton has 4440 states and 11995 transitions. Word has length 113 [2021-08-21 11:45:21,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:21,757 INFO L470 AbstractCegarLoop]: Abstraction has 4440 states and 11995 transitions. [2021-08-21 11:45:21,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4440 states and 11995 transitions. [2021-08-21 11:45:21,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:21,764 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:21,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:21,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-08-21 11:45:21,764 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:21,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:21,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1470920418, now seen corresponding path program 19 times [2021-08-21 11:45:21,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:21,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620440119] [2021-08-21 11:45:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:21,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:21,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:22,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:22,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:22,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620440119] [2021-08-21 11:45:22,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620440119] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:22,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:22,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:22,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671029202] [2021-08-21 11:45:22,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:22,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:22,231 INFO L87 Difference]: Start difference. First operand 4440 states and 11995 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:23,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:23,676 INFO L93 Difference]: Finished difference Result 8738 states and 22724 transitions. [2021-08-21 11:45:23,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:23,677 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:23,692 INFO L225 Difference]: With dead ends: 8738 [2021-08-21 11:45:23,693 INFO L226 Difference]: Without dead ends: 8738 [2021-08-21 11:45:23,693 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1121.8ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:23,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2021-08-21 11:45:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 4404. [2021-08-21 11:45:23,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4404 states, 4402 states have (on average 2.7003634711494775) internal successors, (11887), 4403 states have internal predecessors, (11887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:23,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4404 states to 4404 states and 11887 transitions. [2021-08-21 11:45:23,836 INFO L78 Accepts]: Start accepts. Automaton has 4404 states and 11887 transitions. Word has length 113 [2021-08-21 11:45:23,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:23,836 INFO L470 AbstractCegarLoop]: Abstraction has 4404 states and 11887 transitions. [2021-08-21 11:45:23,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:23,837 INFO L276 IsEmpty]: Start isEmpty. Operand 4404 states and 11887 transitions. [2021-08-21 11:45:23,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:23,841 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:23,841 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:23,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-08-21 11:45:23,842 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:23,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:23,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1156439832, now seen corresponding path program 20 times [2021-08-21 11:45:23,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:23,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883994855] [2021-08-21 11:45:23,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:23,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:24,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:24,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883994855] [2021-08-21 11:45:24,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883994855] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:24,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:24,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:24,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596676639] [2021-08-21 11:45:24,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:24,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:24,266 INFO L87 Difference]: Start difference. First operand 4404 states and 11887 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:25,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:25,596 INFO L93 Difference]: Finished difference Result 7679 states and 19917 transitions. [2021-08-21 11:45:25,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:25,597 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:25,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:25,608 INFO L225 Difference]: With dead ends: 7679 [2021-08-21 11:45:25,608 INFO L226 Difference]: Without dead ends: 7679 [2021-08-21 11:45:25,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 999.3ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:25,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7679 states. [2021-08-21 11:45:25,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7679 to 4406. [2021-08-21 11:45:25,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4406 states, 4404 states have (on average 2.7002724795640325) internal successors, (11892), 4405 states have internal predecessors, (11892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4406 states to 4406 states and 11892 transitions. [2021-08-21 11:45:25,677 INFO L78 Accepts]: Start accepts. Automaton has 4406 states and 11892 transitions. Word has length 113 [2021-08-21 11:45:25,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:25,677 INFO L470 AbstractCegarLoop]: Abstraction has 4406 states and 11892 transitions. [2021-08-21 11:45:25,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4406 states and 11892 transitions. [2021-08-21 11:45:25,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:25,682 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:25,682 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:25,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-08-21 11:45:25,683 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:25,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:25,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1968236812, now seen corresponding path program 21 times [2021-08-21 11:45:25,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:25,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232272240] [2021-08-21 11:45:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:25,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:26,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:26,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:26,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232272240] [2021-08-21 11:45:26,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232272240] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:26,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:26,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:26,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420497159] [2021-08-21 11:45:26,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:26,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:26,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:26,132 INFO L87 Difference]: Start difference. First operand 4406 states and 11892 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:27,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:27,503 INFO L93 Difference]: Finished difference Result 7574 states and 19667 transitions. [2021-08-21 11:45:27,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:27,504 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:27,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:27,516 INFO L225 Difference]: With dead ends: 7574 [2021-08-21 11:45:27,516 INFO L226 Difference]: Without dead ends: 7574 [2021-08-21 11:45:27,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1061.2ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:27,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7574 states. [2021-08-21 11:45:27,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7574 to 4392. [2021-08-21 11:45:27,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4392 states, 4390 states have (on average 2.6995444191343965) internal successors, (11851), 4391 states have internal predecessors, (11851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 11851 transitions. [2021-08-21 11:45:27,589 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 11851 transitions. Word has length 113 [2021-08-21 11:45:27,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:27,589 INFO L470 AbstractCegarLoop]: Abstraction has 4392 states and 11851 transitions. [2021-08-21 11:45:27,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 11851 transitions. [2021-08-21 11:45:27,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:27,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:27,595 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:27,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-08-21 11:45:27,595 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:27,595 INFO L82 PathProgramCache]: Analyzing trace with hash -421169244, now seen corresponding path program 22 times [2021-08-21 11:45:27,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:27,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254671090] [2021-08-21 11:45:27,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:27,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:28,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:28,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254671090] [2021-08-21 11:45:28,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254671090] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:28,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:28,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:28,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378292243] [2021-08-21 11:45:28,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:28,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:28,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:28,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:28,141 INFO L87 Difference]: Start difference. First operand 4392 states and 11851 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:30,450 INFO L93 Difference]: Finished difference Result 6576 states and 17045 transitions. [2021-08-21 11:45:30,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:45:30,450 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:30,462 INFO L225 Difference]: With dead ends: 6576 [2021-08-21 11:45:30,462 INFO L226 Difference]: Without dead ends: 6576 [2021-08-21 11:45:30,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1874.4ms TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2021-08-21 11:45:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6576 states. [2021-08-21 11:45:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6576 to 3330. [2021-08-21 11:45:30,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3330 states, 3328 states have (on average 2.660456730769231) internal successors, (8854), 3329 states have internal predecessors, (8854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3330 states to 3330 states and 8854 transitions. [2021-08-21 11:45:30,516 INFO L78 Accepts]: Start accepts. Automaton has 3330 states and 8854 transitions. Word has length 113 [2021-08-21 11:45:30,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:30,516 INFO L470 AbstractCegarLoop]: Abstraction has 3330 states and 8854 transitions. [2021-08-21 11:45:30,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:30,516 INFO L276 IsEmpty]: Start isEmpty. Operand 3330 states and 8854 transitions. [2021-08-21 11:45:30,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:30,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:30,520 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:30,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-08-21 11:45:30,520 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:30,521 INFO L82 PathProgramCache]: Analyzing trace with hash 602319738, now seen corresponding path program 23 times [2021-08-21 11:45:30,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:30,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73491064] [2021-08-21 11:45:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:30,522 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:31,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:31,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73491064] [2021-08-21 11:45:31,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73491064] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:31,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:31,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:31,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515228915] [2021-08-21 11:45:31,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:31,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:31,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:31,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:31,097 INFO L87 Difference]: Start difference. First operand 3330 states and 8854 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:33,205 INFO L93 Difference]: Finished difference Result 7044 states and 18053 transitions. [2021-08-21 11:45:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:45:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:33,216 INFO L225 Difference]: With dead ends: 7044 [2021-08-21 11:45:33,216 INFO L226 Difference]: Without dead ends: 7044 [2021-08-21 11:45:33,217 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 1575.3ms TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2021-08-21 11:45:33,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7044 states. [2021-08-21 11:45:33,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7044 to 3294. [2021-08-21 11:45:33,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 3292 states have (on average 2.6567436208991495) internal successors, (8746), 3293 states have internal predecessors, (8746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:33,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 8746 transitions. [2021-08-21 11:45:33,280 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 8746 transitions. Word has length 113 [2021-08-21 11:45:33,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:33,281 INFO L470 AbstractCegarLoop]: Abstraction has 3294 states and 8746 transitions. [2021-08-21 11:45:33,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:33,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 8746 transitions. [2021-08-21 11:45:33,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:33,285 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:33,285 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:33,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-08-21 11:45:33,285 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:33,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:33,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1918199132, now seen corresponding path program 24 times [2021-08-21 11:45:33,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:33,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11266294] [2021-08-21 11:45:33,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:33,286 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:33,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:33,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:33,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11266294] [2021-08-21 11:45:33,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11266294] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:33,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:33,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:33,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941635377] [2021-08-21 11:45:33,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:33,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:33,680 INFO L87 Difference]: Start difference. First operand 3294 states and 8746 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:35,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:35,001 INFO L93 Difference]: Finished difference Result 4765 states and 12113 transitions. [2021-08-21 11:45:35,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-21 11:45:35,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:35,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:35,009 INFO L225 Difference]: With dead ends: 4765 [2021-08-21 11:45:35,010 INFO L226 Difference]: Without dead ends: 4765 [2021-08-21 11:45:35,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1025.4ms TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2021-08-21 11:45:35,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4765 states. [2021-08-21 11:45:35,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4765 to 3312. [2021-08-21 11:45:35,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 3310 states have (on average 2.6558912386706948) internal successors, (8791), 3311 states have internal predecessors, (8791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:35,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 8791 transitions. [2021-08-21 11:45:35,055 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 8791 transitions. Word has length 113 [2021-08-21 11:45:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:35,055 INFO L470 AbstractCegarLoop]: Abstraction has 3312 states and 8791 transitions. [2021-08-21 11:45:35,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 8791 transitions. [2021-08-21 11:45:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:35,059 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:35,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:35,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-08-21 11:45:35,059 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:35,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:35,060 INFO L82 PathProgramCache]: Analyzing trace with hash -469950436, now seen corresponding path program 25 times [2021-08-21 11:45:35,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:35,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658448198] [2021-08-21 11:45:35,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:35,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:35,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:35,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:35,523 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658448198] [2021-08-21 11:45:35,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658448198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:35,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:35,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:35,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446886090] [2021-08-21 11:45:35,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:35,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:35,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:35,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:35,525 INFO L87 Difference]: Start difference. First operand 3312 states and 8791 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:36,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:36,532 INFO L93 Difference]: Finished difference Result 4615 states and 11623 transitions. [2021-08-21 11:45:36,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:36,532 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:36,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:36,541 INFO L225 Difference]: With dead ends: 4615 [2021-08-21 11:45:36,541 INFO L226 Difference]: Without dead ends: 4615 [2021-08-21 11:45:36,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 855.4ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:36,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2021-08-21 11:45:36,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3320. [2021-08-21 11:45:36,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3318 states have (on average 2.655515370705244) internal successors, (8811), 3319 states have internal predecessors, (8811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:36,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 8811 transitions. [2021-08-21 11:45:36,625 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 8811 transitions. Word has length 113 [2021-08-21 11:45:36,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:36,625 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 8811 transitions. [2021-08-21 11:45:36,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:36,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 8811 transitions. [2021-08-21 11:45:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:36,653 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:36,653 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:36,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-08-21 11:45:36,653 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:36,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:36,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1640241088, now seen corresponding path program 26 times [2021-08-21 11:45:36,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:36,654 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097206908] [2021-08-21 11:45:36,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:36,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:37,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:37,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:37,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097206908] [2021-08-21 11:45:37,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097206908] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:37,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:37,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:37,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562486123] [2021-08-21 11:45:37,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:37,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:37,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:37,188 INFO L87 Difference]: Start difference. First operand 3320 states and 8811 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:38,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:38,489 INFO L93 Difference]: Finished difference Result 5000 states and 12454 transitions. [2021-08-21 11:45:38,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:38,490 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:38,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:38,498 INFO L225 Difference]: With dead ends: 5000 [2021-08-21 11:45:38,498 INFO L226 Difference]: Without dead ends: 5000 [2021-08-21 11:45:38,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1030.9ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:38,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2021-08-21 11:45:38,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 3318. [2021-08-21 11:45:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 3316 states have (on average 2.655609167671894) internal successors, (8806), 3317 states have internal predecessors, (8806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:38,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 8806 transitions. [2021-08-21 11:45:38,556 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 8806 transitions. Word has length 113 [2021-08-21 11:45:38,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:38,556 INFO L470 AbstractCegarLoop]: Abstraction has 3318 states and 8806 transitions. [2021-08-21 11:45:38,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:38,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 8806 transitions. [2021-08-21 11:45:38,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:38,561 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:38,561 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:38,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-08-21 11:45:38,561 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:38,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:38,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1816254408, now seen corresponding path program 27 times [2021-08-21 11:45:38,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:38,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281573411] [2021-08-21 11:45:38,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:38,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:39,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:39,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:39,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281573411] [2021-08-21 11:45:39,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281573411] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:39,029 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:39,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:39,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930624811] [2021-08-21 11:45:39,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:39,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:39,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:39,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:39,030 INFO L87 Difference]: Start difference. First operand 3318 states and 8806 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:40,428 INFO L93 Difference]: Finished difference Result 4481 states and 11313 transitions. [2021-08-21 11:45:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-21 11:45:40,429 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:40,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:40,434 INFO L225 Difference]: With dead ends: 4481 [2021-08-21 11:45:40,435 INFO L226 Difference]: Without dead ends: 4481 [2021-08-21 11:45:40,435 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1139.9ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-08-21 11:45:40,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2021-08-21 11:45:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 3318. [2021-08-21 11:45:40,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3318 states, 3316 states have (on average 2.655609167671894) internal successors, (8806), 3317 states have internal predecessors, (8806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:40,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3318 states to 3318 states and 8806 transitions. [2021-08-21 11:45:40,479 INFO L78 Accepts]: Start accepts. Automaton has 3318 states and 8806 transitions. Word has length 113 [2021-08-21 11:45:40,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:40,480 INFO L470 AbstractCegarLoop]: Abstraction has 3318 states and 8806 transitions. [2021-08-21 11:45:40,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:40,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3318 states and 8806 transitions. [2021-08-21 11:45:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:40,484 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:40,484 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:40,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-08-21 11:45:40,484 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:40,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:40,485 INFO L82 PathProgramCache]: Analyzing trace with hash -408931516, now seen corresponding path program 28 times [2021-08-21 11:45:40,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:40,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614186473] [2021-08-21 11:45:40,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:40,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:40,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:40,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:40,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614186473] [2021-08-21 11:45:40,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614186473] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:40,920 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:40,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:40,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081165637] [2021-08-21 11:45:40,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:40,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:40,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:40,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:40,921 INFO L87 Difference]: Start difference. First operand 3318 states and 8806 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:41,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:41,963 INFO L93 Difference]: Finished difference Result 4073 states and 10435 transitions. [2021-08-21 11:45:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:45:41,964 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:41,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:41,970 INFO L225 Difference]: With dead ends: 4073 [2021-08-21 11:45:41,970 INFO L226 Difference]: Without dead ends: 4073 [2021-08-21 11:45:41,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 716.6ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:41,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2021-08-21 11:45:42,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3288. [2021-08-21 11:45:42,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3286 states have (on average 2.6570298234936094) internal successors, (8731), 3287 states have internal predecessors, (8731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 8731 transitions. [2021-08-21 11:45:42,008 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 8731 transitions. Word has length 113 [2021-08-21 11:45:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:42,009 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 8731 transitions. [2021-08-21 11:45:42,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 8731 transitions. [2021-08-21 11:45:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:42,012 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:42,012 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:42,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-08-21 11:45:42,012 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:42,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash 2059440834, now seen corresponding path program 29 times [2021-08-21 11:45:42,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:42,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753287943] [2021-08-21 11:45:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:42,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:42,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:42,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753287943] [2021-08-21 11:45:42,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753287943] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:42,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:42,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:42,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293080576] [2021-08-21 11:45:42,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:42,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:42,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:42,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:42,485 INFO L87 Difference]: Start difference. First operand 3288 states and 8731 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:43,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:43,538 INFO L93 Difference]: Finished difference Result 4740 states and 11890 transitions. [2021-08-21 11:45:43,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:45:43,538 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:43,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:43,545 INFO L225 Difference]: With dead ends: 4740 [2021-08-21 11:45:43,545 INFO L226 Difference]: Without dead ends: 4740 [2021-08-21 11:45:43,545 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 802.4ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:43,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2021-08-21 11:45:43,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 3290. [2021-08-21 11:45:43,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3290 states, 3288 states have (on average 2.656934306569343) internal successors, (8736), 3289 states have internal predecessors, (8736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3290 states to 3290 states and 8736 transitions. [2021-08-21 11:45:43,587 INFO L78 Accepts]: Start accepts. Automaton has 3290 states and 8736 transitions. Word has length 113 [2021-08-21 11:45:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:43,588 INFO L470 AbstractCegarLoop]: Abstraction has 3290 states and 8736 transitions. [2021-08-21 11:45:43,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3290 states and 8736 transitions. [2021-08-21 11:45:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:43,591 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:43,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:43,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-08-21 11:45:43,592 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:43,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:43,592 INFO L82 PathProgramCache]: Analyzing trace with hash 889150182, now seen corresponding path program 30 times [2021-08-21 11:45:43,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:43,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825583186] [2021-08-21 11:45:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:43,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:44,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:44,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825583186] [2021-08-21 11:45:44,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825583186] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:44,003 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:44,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:44,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423222186] [2021-08-21 11:45:44,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:44,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:44,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:44,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:44,005 INFO L87 Difference]: Start difference. First operand 3290 states and 8736 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:44,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:44,865 INFO L93 Difference]: Finished difference Result 4460 states and 11271 transitions. [2021-08-21 11:45:44,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:44,865 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:44,872 INFO L225 Difference]: With dead ends: 4460 [2021-08-21 11:45:44,872 INFO L226 Difference]: Without dead ends: 4460 [2021-08-21 11:45:44,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 651.3ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4460 states. [2021-08-21 11:45:44,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4460 to 3282. [2021-08-21 11:45:44,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3280 states have (on average 2.6573170731707316) internal successors, (8716), 3281 states have internal predecessors, (8716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:44,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 8716 transitions. [2021-08-21 11:45:44,913 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 8716 transitions. Word has length 113 [2021-08-21 11:45:44,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:44,913 INFO L470 AbstractCegarLoop]: Abstraction has 3282 states and 8716 transitions. [2021-08-21 11:45:44,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 8716 transitions. [2021-08-21 11:45:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:44,917 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:44,917 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:44,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-08-21 11:45:44,918 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:44,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:44,918 INFO L82 PathProgramCache]: Analyzing trace with hash -841484504, now seen corresponding path program 31 times [2021-08-21 11:45:44,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:44,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822266953] [2021-08-21 11:45:44,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:44,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:45,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:45,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822266953] [2021-08-21 11:45:45,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822266953] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:45,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:45,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:45,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980071311] [2021-08-21 11:45:45,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:45,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:45,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:45,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:45,402 INFO L87 Difference]: Start difference. First operand 3282 states and 8716 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:46,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:46,347 INFO L93 Difference]: Finished difference Result 4137 states and 10542 transitions. [2021-08-21 11:45:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-21 11:45:46,348 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:46,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:46,355 INFO L225 Difference]: With dead ends: 4137 [2021-08-21 11:45:46,355 INFO L226 Difference]: Without dead ends: 4137 [2021-08-21 11:45:46,357 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 754.0ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-08-21 11:45:46,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2021-08-21 11:45:46,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 3272. [2021-08-21 11:45:46,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 3270 states have (on average 2.657798165137615) internal successors, (8691), 3271 states have internal predecessors, (8691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:46,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 8691 transitions. [2021-08-21 11:45:46,433 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 8691 transitions. Word has length 113 [2021-08-21 11:45:46,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:46,434 INFO L470 AbstractCegarLoop]: Abstraction has 3272 states and 8691 transitions. [2021-08-21 11:45:46,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:46,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 8691 transitions. [2021-08-21 11:45:46,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:46,454 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:46,454 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:46,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-08-21 11:45:46,454 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:46,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:46,455 INFO L82 PathProgramCache]: Analyzing trace with hash -2011775156, now seen corresponding path program 32 times [2021-08-21 11:45:46,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:46,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432924001] [2021-08-21 11:45:46,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:46,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:46,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:46,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:46,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432924001] [2021-08-21 11:45:46,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432924001] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:46,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:46,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:46,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752545045] [2021-08-21 11:45:46,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:46,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:46,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:46,871 INFO L87 Difference]: Start difference. First operand 3272 states and 8691 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:47,672 INFO L93 Difference]: Finished difference Result 4522 states and 11373 transitions. [2021-08-21 11:45:47,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:45:47,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:47,679 INFO L225 Difference]: With dead ends: 4522 [2021-08-21 11:45:47,679 INFO L226 Difference]: Without dead ends: 4522 [2021-08-21 11:45:47,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 612.1ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-08-21 11:45:47,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4522 states. [2021-08-21 11:45:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4522 to 3270. [2021-08-21 11:45:47,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3270 states, 3268 states have (on average 2.6578947368421053) internal successors, (8686), 3269 states have internal predecessors, (8686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:47,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3270 states to 3270 states and 8686 transitions. [2021-08-21 11:45:47,716 INFO L78 Accepts]: Start accepts. Automaton has 3270 states and 8686 transitions. Word has length 113 [2021-08-21 11:45:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:47,717 INFO L470 AbstractCegarLoop]: Abstraction has 3270 states and 8686 transitions. [2021-08-21 11:45:47,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 3270 states and 8686 transitions. [2021-08-21 11:45:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-08-21 11:45:47,720 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:47,720 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:47,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-08-21 11:45:47,720 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:47,721 INFO L82 PathProgramCache]: Analyzing trace with hash -468364828, now seen corresponding path program 33 times [2021-08-21 11:45:47,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:47,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694221369] [2021-08-21 11:45:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:47,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:48,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:48,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694221369] [2021-08-21 11:45:48,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694221369] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:48,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:48,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-08-21 11:45:48,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737842278] [2021-08-21 11:45:48,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-21 11:45:48,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:48,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-21 11:45:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-08-21 11:45:48,142 INFO L87 Difference]: Start difference. First operand 3270 states and 8686 transitions. Second operand has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:49,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:49,214 INFO L93 Difference]: Finished difference Result 3848 states and 9911 transitions. [2021-08-21 11:45:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-21 11:45:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-08-21 11:45:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:49,224 INFO L225 Difference]: With dead ends: 3848 [2021-08-21 11:45:49,224 INFO L226 Difference]: Without dead ends: 3848 [2021-08-21 11:45:49,224 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 868.2ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-08-21 11:45:49,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2021-08-21 11:45:49,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 2967. [2021-08-21 11:45:49,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.700606877950101) internal successors, (8010), 2966 states have internal predecessors, (8010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 8010 transitions. [2021-08-21 11:45:49,262 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 8010 transitions. Word has length 113 [2021-08-21 11:45:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:49,262 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 8010 transitions. [2021-08-21 11:45:49,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.277777777777778) internal successors, (113), 18 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 8010 transitions. [2021-08-21 11:45:49,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:45:49,266 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:49,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:49,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-08-21 11:45:49,266 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:49,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:49,267 INFO L82 PathProgramCache]: Analyzing trace with hash 851472293, now seen corresponding path program 1 times [2021-08-21 11:45:49,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:49,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875754465] [2021-08-21 11:45:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:49,267 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:50,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:50,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:50,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875754465] [2021-08-21 11:45:50,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875754465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:50,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:50,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:45:50,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063264570] [2021-08-21 11:45:50,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:45:50,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:45:50,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:45:50,521 INFO L87 Difference]: Start difference. First operand 2967 states and 8010 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:53,775 INFO L93 Difference]: Finished difference Result 4239 states and 11289 transitions. [2021-08-21 11:45:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:45:53,775 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:45:53,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:53,781 INFO L225 Difference]: With dead ends: 4239 [2021-08-21 11:45:53,781 INFO L226 Difference]: Without dead ends: 4073 [2021-08-21 11:45:53,782 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 2782.2ms TimeCoverageRelationStatistics Valid=563, Invalid=2629, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:45:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2021-08-21 11:45:53,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 3267. [2021-08-21 11:45:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 3266 states have (on average 2.7036129822412738) internal successors, (8830), 3266 states have internal predecessors, (8830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 8830 transitions. [2021-08-21 11:45:53,819 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 8830 transitions. Word has length 119 [2021-08-21 11:45:53,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:53,819 INFO L470 AbstractCegarLoop]: Abstraction has 3267 states and 8830 transitions. [2021-08-21 11:45:53,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:53,820 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 8830 transitions. [2021-08-21 11:45:53,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:45:53,823 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:53,823 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:53,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-08-21 11:45:53,823 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:53,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:53,824 INFO L82 PathProgramCache]: Analyzing trace with hash -7930005, now seen corresponding path program 2 times [2021-08-21 11:45:53,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:53,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682690775] [2021-08-21 11:45:53,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:53,824 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:53,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:54,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:54,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682690775] [2021-08-21 11:45:54,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682690775] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:54,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:54,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:45:54,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198893715] [2021-08-21 11:45:54,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:45:54,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:54,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:45:54,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:45:54,940 INFO L87 Difference]: Start difference. First operand 3267 states and 8830 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:58,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:45:58,603 INFO L93 Difference]: Finished difference Result 4533 states and 12017 transitions. [2021-08-21 11:45:58,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:45:58,603 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:45:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:45:58,609 INFO L225 Difference]: With dead ends: 4533 [2021-08-21 11:45:58,609 INFO L226 Difference]: Without dead ends: 4142 [2021-08-21 11:45:58,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 3100.4ms TimeCoverageRelationStatistics Valid=674, Invalid=3358, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:45:58,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4142 states. [2021-08-21 11:45:58,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4142 to 3327. [2021-08-21 11:45:58,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3327 states, 3326 states have (on average 2.687312086590499) internal successors, (8938), 3326 states have internal predecessors, (8938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3327 states to 3327 states and 8938 transitions. [2021-08-21 11:45:58,651 INFO L78 Accepts]: Start accepts. Automaton has 3327 states and 8938 transitions. Word has length 119 [2021-08-21 11:45:58,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:45:58,651 INFO L470 AbstractCegarLoop]: Abstraction has 3327 states and 8938 transitions. [2021-08-21 11:45:58,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:45:58,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3327 states and 8938 transitions. [2021-08-21 11:45:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:45:58,655 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:45:58,655 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:45:58,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-08-21 11:45:58,655 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:45:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:45:58,655 INFO L82 PathProgramCache]: Analyzing trace with hash -770113755, now seen corresponding path program 3 times [2021-08-21 11:45:58,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:45:58,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191565954] [2021-08-21 11:45:58,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:45:58,655 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:45:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:45:59,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:45:59,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:45:59,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191565954] [2021-08-21 11:45:59,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191565954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:45:59,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:45:59,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:45:59,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720163249] [2021-08-21 11:45:59,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:45:59,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:45:59,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:45:59,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:45:59,750 INFO L87 Difference]: Start difference. First operand 3327 states and 8938 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:03,384 INFO L93 Difference]: Finished difference Result 4248 states and 11210 transitions. [2021-08-21 11:46:03,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-21 11:46:03,384 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:03,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:03,389 INFO L225 Difference]: With dead ends: 4248 [2021-08-21 11:46:03,389 INFO L226 Difference]: Without dead ends: 3842 [2021-08-21 11:46:03,390 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 3227.7ms TimeCoverageRelationStatistics Valid=709, Invalid=3581, Unknown=0, NotChecked=0, Total=4290 [2021-08-21 11:46:03,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2021-08-21 11:46:03,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3027. [2021-08-21 11:46:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 3026 states have (on average 2.6827495042961003) internal successors, (8118), 3026 states have internal predecessors, (8118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:03,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 8118 transitions. [2021-08-21 11:46:03,421 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 8118 transitions. Word has length 119 [2021-08-21 11:46:03,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:03,421 INFO L470 AbstractCegarLoop]: Abstraction has 3027 states and 8118 transitions. [2021-08-21 11:46:03,421 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 8118 transitions. [2021-08-21 11:46:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:03,424 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:03,424 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:03,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-08-21 11:46:03,424 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:03,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:03,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1517765573, now seen corresponding path program 4 times [2021-08-21 11:46:03,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:03,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514782318] [2021-08-21 11:46:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:03,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:04,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:04,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514782318] [2021-08-21 11:46:04,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514782318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:04,393 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:04,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:04,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372121039] [2021-08-21 11:46:04,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:04,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:04,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:04,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:04,395 INFO L87 Difference]: Start difference. First operand 3027 states and 8118 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:07,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:07,494 INFO L93 Difference]: Finished difference Result 3939 states and 10389 transitions. [2021-08-21 11:46:07,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:46:07,494 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:07,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:07,499 INFO L225 Difference]: With dead ends: 3939 [2021-08-21 11:46:07,499 INFO L226 Difference]: Without dead ends: 3698 [2021-08-21 11:46:07,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 2579.3ms TimeCoverageRelationStatistics Valid=563, Invalid=2629, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:46:07,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2021-08-21 11:46:07,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 2967. [2021-08-21 11:46:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 2966 states have (on average 2.6803776129467294) internal successors, (7950), 2966 states have internal predecessors, (7950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:07,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 7950 transitions. [2021-08-21 11:46:07,531 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 7950 transitions. Word has length 119 [2021-08-21 11:46:07,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:07,531 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 7950 transitions. [2021-08-21 11:46:07,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:07,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 7950 transitions. [2021-08-21 11:46:07,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:07,534 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:07,534 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:07,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-08-21 11:46:07,534 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:07,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1476436449, now seen corresponding path program 5 times [2021-08-21 11:46:07,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:07,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316333367] [2021-08-21 11:46:07,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:07,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:08,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:08,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:08,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316333367] [2021-08-21 11:46:08,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316333367] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:08,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:08,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:08,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483890752] [2021-08-21 11:46:08,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:08,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:08,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:08,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:08,529 INFO L87 Difference]: Start difference. First operand 2967 states and 7950 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:11,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:11,571 INFO L93 Difference]: Finished difference Result 4041 states and 10530 transitions. [2021-08-21 11:46:11,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:46:11,572 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:11,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:11,576 INFO L225 Difference]: With dead ends: 4041 [2021-08-21 11:46:11,576 INFO L226 Difference]: Without dead ends: 3605 [2021-08-21 11:46:11,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 732 ImplicationChecksByTransitivity, 2568.7ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:46:11,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2021-08-21 11:46:11,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 2757. [2021-08-21 11:46:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2756 states have (on average 2.688679245283019) internal successors, (7410), 2756 states have internal predecessors, (7410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:11,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 7410 transitions. [2021-08-21 11:46:11,606 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 7410 transitions. Word has length 119 [2021-08-21 11:46:11,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:11,607 INFO L470 AbstractCegarLoop]: Abstraction has 2757 states and 7410 transitions. [2021-08-21 11:46:11,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:11,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 7410 transitions. [2021-08-21 11:46:11,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:11,609 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:11,609 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:11,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-08-21 11:46:11,610 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:11,610 INFO L82 PathProgramCache]: Analyzing trace with hash -98413023, now seen corresponding path program 6 times [2021-08-21 11:46:11,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:11,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868479248] [2021-08-21 11:46:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:11,610 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:11,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:11,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868479248] [2021-08-21 11:46:11,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868479248] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:11,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:11,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-21 11:46:11,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056960268] [2021-08-21 11:46:11,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 11:46:11,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:11,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 11:46:11,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:46:11,870 INFO L87 Difference]: Start difference. First operand 2757 states and 7410 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:12,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:12,222 INFO L93 Difference]: Finished difference Result 3177 states and 8472 transitions. [2021-08-21 11:46:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:46:12,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:12,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:12,226 INFO L225 Difference]: With dead ends: 3177 [2021-08-21 11:46:12,226 INFO L226 Difference]: Without dead ends: 3177 [2021-08-21 11:46:12,226 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 259.3ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-08-21 11:46:12,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3177 states. [2021-08-21 11:46:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3177 to 2925. [2021-08-21 11:46:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2924 states have (on average 2.673734610123119) internal successors, (7818), 2924 states have internal predecessors, (7818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:12,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 7818 transitions. [2021-08-21 11:46:12,255 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 7818 transitions. Word has length 119 [2021-08-21 11:46:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:12,255 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 7818 transitions. [2021-08-21 11:46:12,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:12,255 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 7818 transitions. [2021-08-21 11:46:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:12,258 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:12,258 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:12,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-08-21 11:46:12,258 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:12,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:12,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1693087381, now seen corresponding path program 7 times [2021-08-21 11:46:12,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:12,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503462487] [2021-08-21 11:46:12,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:12,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:13,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:13,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:13,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503462487] [2021-08-21 11:46:13,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503462487] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:13,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:13,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:13,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592520374] [2021-08-21 11:46:13,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:13,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:13,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:13,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:13,108 INFO L87 Difference]: Start difference. First operand 2925 states and 7818 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:15,440 INFO L93 Difference]: Finished difference Result 3311 states and 8747 transitions. [2021-08-21 11:46:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:46:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:15,445 INFO L225 Difference]: With dead ends: 3311 [2021-08-21 11:46:15,445 INFO L226 Difference]: Without dead ends: 3179 [2021-08-21 11:46:15,445 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 2026.5ms TimeCoverageRelationStatistics Valid=507, Invalid=2355, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:46:15,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3179 states. [2021-08-21 11:46:15,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3179 to 2949. [2021-08-21 11:46:15,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 2.6719810040705565) internal successors, (7877), 2948 states have internal predecessors, (7877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:15,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 7877 transitions. [2021-08-21 11:46:15,475 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 7877 transitions. Word has length 119 [2021-08-21 11:46:15,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:15,476 INFO L470 AbstractCegarLoop]: Abstraction has 2949 states and 7877 transitions. [2021-08-21 11:46:15,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:15,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 7877 transitions. [2021-08-21 11:46:15,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:15,478 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:15,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:15,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-08-21 11:46:15,479 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:15,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:15,479 INFO L82 PathProgramCache]: Analyzing trace with hash 711842329, now seen corresponding path program 8 times [2021-08-21 11:46:15,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:15,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819202843] [2021-08-21 11:46:15,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:15,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:16,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:16,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819202843] [2021-08-21 11:46:16,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819202843] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:16,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:16,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:16,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555356085] [2021-08-21 11:46:16,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:16,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:16,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:16,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:16,462 INFO L87 Difference]: Start difference. First operand 2949 states and 7877 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:19,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:19,084 INFO L93 Difference]: Finished difference Result 3561 states and 9377 transitions. [2021-08-21 11:46:19,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:46:19,085 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:19,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:19,089 INFO L225 Difference]: With dead ends: 3561 [2021-08-21 11:46:19,089 INFO L226 Difference]: Without dead ends: 3431 [2021-08-21 11:46:19,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2189.7ms TimeCoverageRelationStatistics Valid=492, Invalid=2370, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:46:19,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3431 states. [2021-08-21 11:46:19,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3431 to 3117. [2021-08-21 11:46:19,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3117 states, 3116 states have (on average 2.66206675224647) internal successors, (8295), 3116 states have internal predecessors, (8295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3117 states to 3117 states and 8295 transitions. [2021-08-21 11:46:19,122 INFO L78 Accepts]: Start accepts. Automaton has 3117 states and 8295 transitions. Word has length 119 [2021-08-21 11:46:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:19,123 INFO L470 AbstractCegarLoop]: Abstraction has 3117 states and 8295 transitions. [2021-08-21 11:46:19,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:19,123 INFO L276 IsEmpty]: Start isEmpty. Operand 3117 states and 8295 transitions. [2021-08-21 11:46:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:19,126 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:19,126 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:19,126 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-08-21 11:46:19,126 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:19,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:19,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1493335233, now seen corresponding path program 9 times [2021-08-21 11:46:19,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:19,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958475566] [2021-08-21 11:46:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:19,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:20,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:20,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958475566] [2021-08-21 11:46:20,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958475566] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:20,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:20,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:46:20,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114602916] [2021-08-21 11:46:20,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:46:20,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:20,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:46:20,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:46:20,078 INFO L87 Difference]: Start difference. First operand 3117 states and 8295 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:22,844 INFO L93 Difference]: Finished difference Result 3735 states and 9783 transitions. [2021-08-21 11:46:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:46:22,845 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:22,850 INFO L225 Difference]: With dead ends: 3735 [2021-08-21 11:46:22,850 INFO L226 Difference]: Without dead ends: 3484 [2021-08-21 11:46:22,850 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 2355.8ms TimeCoverageRelationStatistics Valid=600, Invalid=2940, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:46:22,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3484 states. [2021-08-21 11:46:22,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3484 to 3153. [2021-08-21 11:46:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3153 states, 3152 states have (on average 2.650697969543147) internal successors, (8355), 3152 states have internal predecessors, (8355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:22,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3153 states to 3153 states and 8355 transitions. [2021-08-21 11:46:22,884 INFO L78 Accepts]: Start accepts. Automaton has 3153 states and 8355 transitions. Word has length 119 [2021-08-21 11:46:22,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:22,885 INFO L470 AbstractCegarLoop]: Abstraction has 3153 states and 8355 transitions. [2021-08-21 11:46:22,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:22,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3153 states and 8355 transitions. [2021-08-21 11:46:22,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:22,888 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:22,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:22,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-08-21 11:46:22,888 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:22,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:22,888 INFO L82 PathProgramCache]: Analyzing trace with hash 731151483, now seen corresponding path program 10 times [2021-08-21 11:46:22,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:22,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15877903] [2021-08-21 11:46:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:22,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:23,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:23,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:23,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15877903] [2021-08-21 11:46:23,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15877903] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:23,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:23,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:46:23,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166443607] [2021-08-21 11:46:23,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:46:23,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:23,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:46:23,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:46:23,895 INFO L87 Difference]: Start difference. First operand 3153 states and 8355 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:26,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:26,724 INFO L93 Difference]: Finished difference Result 3566 states and 9326 transitions. [2021-08-21 11:46:26,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:46:26,724 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:26,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:26,729 INFO L225 Difference]: With dead ends: 3566 [2021-08-21 11:46:26,729 INFO L226 Difference]: Without dead ends: 3268 [2021-08-21 11:46:26,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 2416.4ms TimeCoverageRelationStatistics Valid=598, Invalid=3062, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:46:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2021-08-21 11:46:26,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 2937. [2021-08-21 11:46:26,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2936 states have (on average 2.6709809264305178) internal successors, (7842), 2936 states have internal predecessors, (7842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 7842 transitions. [2021-08-21 11:46:26,758 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 7842 transitions. Word has length 119 [2021-08-21 11:46:26,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:26,758 INFO L470 AbstractCegarLoop]: Abstraction has 2937 states and 7842 transitions. [2021-08-21 11:46:26,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 7842 transitions. [2021-08-21 11:46:26,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:26,761 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:26,761 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:26,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-08-21 11:46:26,761 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:26,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:26,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1291412009, now seen corresponding path program 11 times [2021-08-21 11:46:26,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:26,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141233740] [2021-08-21 11:46:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:26,762 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:27,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:27,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141233740] [2021-08-21 11:46:27,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141233740] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:27,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:27,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:27,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61666214] [2021-08-21 11:46:27,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:27,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:27,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:27,639 INFO L87 Difference]: Start difference. First operand 2937 states and 7842 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:29,522 INFO L93 Difference]: Finished difference Result 3170 states and 8305 transitions. [2021-08-21 11:46:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:46:29,522 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:29,527 INFO L225 Difference]: With dead ends: 3170 [2021-08-21 11:46:29,527 INFO L226 Difference]: Without dead ends: 3038 [2021-08-21 11:46:29,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1688.1ms TimeCoverageRelationStatistics Valid=395, Invalid=2055, Unknown=0, NotChecked=0, Total=2450 [2021-08-21 11:46:29,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3038 states. [2021-08-21 11:46:29,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3038 to 2988. [2021-08-21 11:46:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2988 states, 2987 states have (on average 2.6588550385001675) internal successors, (7942), 2987 states have internal predecessors, (7942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:29,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2988 states to 2988 states and 7942 transitions. [2021-08-21 11:46:29,559 INFO L78 Accepts]: Start accepts. Automaton has 2988 states and 7942 transitions. Word has length 119 [2021-08-21 11:46:29,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:29,559 INFO L470 AbstractCegarLoop]: Abstraction has 2988 states and 7942 transitions. [2021-08-21 11:46:29,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2988 states and 7942 transitions. [2021-08-21 11:46:29,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:29,562 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:29,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:29,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-08-21 11:46:29,562 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:29,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:29,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1023703483, now seen corresponding path program 12 times [2021-08-21 11:46:29,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:29,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813197573] [2021-08-21 11:46:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:29,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:30,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:30,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813197573] [2021-08-21 11:46:30,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813197573] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:30,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:30,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:30,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528581696] [2021-08-21 11:46:30,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:30,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:30,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:30,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:30,468 INFO L87 Difference]: Start difference. First operand 2988 states and 7942 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:32,490 INFO L93 Difference]: Finished difference Result 3181 states and 8330 transitions. [2021-08-21 11:46:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:46:32,490 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:32,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:32,495 INFO L225 Difference]: With dead ends: 3181 [2021-08-21 11:46:32,495 INFO L226 Difference]: Without dead ends: 3034 [2021-08-21 11:46:32,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1770.0ms TimeCoverageRelationStatistics Valid=413, Invalid=2137, Unknown=0, NotChecked=0, Total=2550 [2021-08-21 11:46:32,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2021-08-21 11:46:32,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 2986. [2021-08-21 11:46:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.6592964824120604) internal successors, (7938), 2985 states have internal predecessors, (7938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7938 transitions. [2021-08-21 11:46:32,524 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7938 transitions. Word has length 119 [2021-08-21 11:46:32,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:32,524 INFO L470 AbstractCegarLoop]: Abstraction has 2986 states and 7938 transitions. [2021-08-21 11:46:32,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:32,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7938 transitions. [2021-08-21 11:46:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:32,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:32,527 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:32,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-08-21 11:46:32,527 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:32,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:32,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1377529023, now seen corresponding path program 13 times [2021-08-21 11:46:32,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:32,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033719066] [2021-08-21 11:46:32,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:32,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:33,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:33,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:33,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033719066] [2021-08-21 11:46:33,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033719066] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:33,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:33,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:33,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880922574] [2021-08-21 11:46:33,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:33,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:33,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:33,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:33,312 INFO L87 Difference]: Start difference. First operand 2986 states and 7938 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:35,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:35,431 INFO L93 Difference]: Finished difference Result 3524 states and 9187 transitions. [2021-08-21 11:46:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:46:35,431 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:35,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:35,437 INFO L225 Difference]: With dead ends: 3524 [2021-08-21 11:46:35,437 INFO L226 Difference]: Without dead ends: 3379 [2021-08-21 11:46:35,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1859.1ms TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:46:35,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3379 states. [2021-08-21 11:46:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3379 to 3046. [2021-08-21 11:46:35,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3046 states, 3045 states have (on average 2.6604269293924467) internal successors, (8101), 3045 states have internal predecessors, (8101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:35,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3046 states to 3046 states and 8101 transitions. [2021-08-21 11:46:35,476 INFO L78 Accepts]: Start accepts. Automaton has 3046 states and 8101 transitions. Word has length 119 [2021-08-21 11:46:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:35,476 INFO L470 AbstractCegarLoop]: Abstraction has 3046 states and 8101 transitions. [2021-08-21 11:46:35,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:35,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3046 states and 8101 transitions. [2021-08-21 11:46:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:35,479 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:35,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:35,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-08-21 11:46:35,479 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:35,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1289522363, now seen corresponding path program 14 times [2021-08-21 11:46:35,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:35,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739989029] [2021-08-21 11:46:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:35,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:36,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:36,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739989029] [2021-08-21 11:46:36,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739989029] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:36,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:36,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:36,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169332085] [2021-08-21 11:46:36,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:36,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:36,298 INFO L87 Difference]: Start difference. First operand 3046 states and 8101 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:38,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:38,293 INFO L93 Difference]: Finished difference Result 3500 states and 9137 transitions. [2021-08-21 11:46:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:46:38,294 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:38,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:38,299 INFO L225 Difference]: With dead ends: 3500 [2021-08-21 11:46:38,299 INFO L226 Difference]: Without dead ends: 3370 [2021-08-21 11:46:38,299 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1782.2ms TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:46:38,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2021-08-21 11:46:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3214. [2021-08-21 11:46:38,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3214 states, 3213 states have (on average 2.6514161220043575) internal successors, (8519), 3213 states have internal predecessors, (8519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:38,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 8519 transitions. [2021-08-21 11:46:38,376 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 8519 transitions. Word has length 119 [2021-08-21 11:46:38,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:38,376 INFO L470 AbstractCegarLoop]: Abstraction has 3214 states and 8519 transitions. [2021-08-21 11:46:38,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:38,376 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 8519 transitions. [2021-08-21 11:46:38,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:38,379 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:38,379 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:38,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-08-21 11:46:38,380 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:38,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:38,380 INFO L82 PathProgramCache]: Analyzing trace with hash -508029459, now seen corresponding path program 15 times [2021-08-21 11:46:38,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:38,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091211788] [2021-08-21 11:46:38,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:38,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:39,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:39,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091211788] [2021-08-21 11:46:39,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091211788] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:39,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:39,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:46:39,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457145939] [2021-08-21 11:46:39,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:46:39,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:39,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:46:39,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:46:39,423 INFO L87 Difference]: Start difference. First operand 3214 states and 8519 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:42,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:42,422 INFO L93 Difference]: Finished difference Result 4086 states and 10659 transitions. [2021-08-21 11:46:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:46:42,423 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:42,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:42,429 INFO L225 Difference]: With dead ends: 4086 [2021-08-21 11:46:42,429 INFO L226 Difference]: Without dead ends: 3835 [2021-08-21 11:46:42,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2582.5ms TimeCoverageRelationStatistics Valid=588, Invalid=2952, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:46:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3835 states. [2021-08-21 11:46:42,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3835 to 3478. [2021-08-21 11:46:42,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 3477 states have (on average 2.639919470808168) internal successors, (9179), 3477 states have internal predecessors, (9179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:42,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 9179 transitions. [2021-08-21 11:46:42,466 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 9179 transitions. Word has length 119 [2021-08-21 11:46:42,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:42,466 INFO L470 AbstractCegarLoop]: Abstraction has 3478 states and 9179 transitions. [2021-08-21 11:46:42,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 9179 transitions. [2021-08-21 11:46:42,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:42,469 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:42,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:42,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-08-21 11:46:42,470 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:42,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:42,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1270213209, now seen corresponding path program 16 times [2021-08-21 11:46:42,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:42,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473427540] [2021-08-21 11:46:42,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:42,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:43,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:43,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473427540] [2021-08-21 11:46:43,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473427540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:43,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:43,363 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:46:43,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094034899] [2021-08-21 11:46:43,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:46:43,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:43,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:46:43,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:46:43,363 INFO L87 Difference]: Start difference. First operand 3478 states and 9179 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:45,886 INFO L93 Difference]: Finished difference Result 3769 states and 9746 transitions. [2021-08-21 11:46:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:46:45,887 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:45,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:45,891 INFO L225 Difference]: With dead ends: 3769 [2021-08-21 11:46:45,892 INFO L226 Difference]: Without dead ends: 3411 [2021-08-21 11:46:45,892 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 2236.5ms TimeCoverageRelationStatistics Valid=515, Invalid=2677, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:46:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3411 states. [2021-08-21 11:46:45,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3411 to 3238. [2021-08-21 11:46:45,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 3237 states have (on average 2.6453506333024404) internal successors, (8563), 3237 states have internal predecessors, (8563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 8563 transitions. [2021-08-21 11:46:45,926 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 8563 transitions. Word has length 119 [2021-08-21 11:46:45,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:45,926 INFO L470 AbstractCegarLoop]: Abstraction has 3238 states and 8563 transitions. [2021-08-21 11:46:45,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:45,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 8563 transitions. [2021-08-21 11:46:45,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:45,929 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:45,929 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:45,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-08-21 11:46:45,929 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:45,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1655665707, now seen corresponding path program 17 times [2021-08-21 11:46:45,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:45,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797972271] [2021-08-21 11:46:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:45,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:45,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:46,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:46,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797972271] [2021-08-21 11:46:46,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797972271] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:46,845 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:46,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:46,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143595413] [2021-08-21 11:46:46,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:46,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:46,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:46,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:46,846 INFO L87 Difference]: Start difference. First operand 3238 states and 8563 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:48,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:48,728 INFO L93 Difference]: Finished difference Result 3388 states and 8850 transitions. [2021-08-21 11:46:48,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:46:48,729 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:48,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:48,733 INFO L225 Difference]: With dead ends: 3388 [2021-08-21 11:46:48,733 INFO L226 Difference]: Without dead ends: 3256 [2021-08-21 11:46:48,734 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1751.2ms TimeCoverageRelationStatistics Valid=395, Invalid=2055, Unknown=0, NotChecked=0, Total=2450 [2021-08-21 11:46:48,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2021-08-21 11:46:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 3246. [2021-08-21 11:46:48,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3245 states have (on average 2.644375963020031) internal successors, (8581), 3245 states have internal predecessors, (8581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:48,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 8581 transitions. [2021-08-21 11:46:48,766 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 8581 transitions. Word has length 119 [2021-08-21 11:46:48,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:48,766 INFO L470 AbstractCegarLoop]: Abstraction has 3246 states and 8581 transitions. [2021-08-21 11:46:48,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:48,766 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 8581 transitions. [2021-08-21 11:46:48,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:48,769 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:48,769 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:48,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-08-21 11:46:48,769 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:48,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:48,770 INFO L82 PathProgramCache]: Analyzing trace with hash 324186097, now seen corresponding path program 18 times [2021-08-21 11:46:48,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:48,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054860297] [2021-08-21 11:46:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:48,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:49,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:49,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:49,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054860297] [2021-08-21 11:46:49,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054860297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:49,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:49,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:49,721 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094731958] [2021-08-21 11:46:49,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:49,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=590, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:49,722 INFO L87 Difference]: Start difference. First operand 3246 states and 8581 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:52,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:52,324 INFO L93 Difference]: Finished difference Result 3718 states and 9690 transitions. [2021-08-21 11:46:52,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:46:52,324 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:52,329 INFO L225 Difference]: With dead ends: 3718 [2021-08-21 11:46:52,329 INFO L226 Difference]: Without dead ends: 3571 [2021-08-21 11:46:52,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2253.3ms TimeCoverageRelationStatistics Valid=492, Invalid=2370, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:46:52,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-08-21 11:46:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3252. [2021-08-21 11:46:52,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3251 states have (on average 2.6434943094432484) internal successors, (8594), 3251 states have internal predecessors, (8594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:52,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 8594 transitions. [2021-08-21 11:46:52,365 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 8594 transitions. Word has length 119 [2021-08-21 11:46:52,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:52,365 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 8594 transitions. [2021-08-21 11:46:52,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:52,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 8594 transitions. [2021-08-21 11:46:52,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:52,368 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:52,368 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:52,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-08-21 11:46:52,369 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:52,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:52,369 INFO L82 PathProgramCache]: Analyzing trace with hash -985437705, now seen corresponding path program 19 times [2021-08-21 11:46:52,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:52,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113006253] [2021-08-21 11:46:52,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:52,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:53,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:53,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113006253] [2021-08-21 11:46:53,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113006253] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:53,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:53,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-08-21 11:46:53,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058555996] [2021-08-21 11:46:53,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-21 11:46:53,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:53,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-21 11:46:53,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=540, Unknown=0, NotChecked=0, Total=600 [2021-08-21 11:46:53,284 INFO L87 Difference]: Start difference. First operand 3252 states and 8594 transitions. Second operand has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:55,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:55,520 INFO L93 Difference]: Finished difference Result 3442 states and 8967 transitions. [2021-08-21 11:46:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:46:55,520 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:55,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:55,524 INFO L225 Difference]: With dead ends: 3442 [2021-08-21 11:46:55,524 INFO L226 Difference]: Without dead ends: 3204 [2021-08-21 11:46:55,524 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 1938.9ms TimeCoverageRelationStatistics Valid=434, Invalid=2218, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:46:55,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2021-08-21 11:46:55,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 3204. [2021-08-21 11:46:55,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 3203 states have (on average 2.6568841710896036) internal successors, (8510), 3203 states have internal predecessors, (8510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 8510 transitions. [2021-08-21 11:46:55,555 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 8510 transitions. Word has length 119 [2021-08-21 11:46:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:55,555 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 8510 transitions. [2021-08-21 11:46:55,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.76) internal successors, (119), 25 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:55,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 8510 transitions. [2021-08-21 11:46:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:55,558 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:55,558 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:55,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-08-21 11:46:55,559 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:55,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:55,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1897922251, now seen corresponding path program 20 times [2021-08-21 11:46:55,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:55,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064107024] [2021-08-21 11:46:55,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:55,559 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:46:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:46:56,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:46:56,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064107024] [2021-08-21 11:46:56,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064107024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:46:56,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:46:56,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:46:56,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692895114] [2021-08-21 11:46:56,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:46:56,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:46:56,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:46:56,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:46:56,565 INFO L87 Difference]: Start difference. First operand 3204 states and 8510 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:59,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:46:59,544 INFO L93 Difference]: Finished difference Result 4254 states and 11226 transitions. [2021-08-21 11:46:59,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:46:59,544 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:46:59,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:46:59,549 INFO L225 Difference]: With dead ends: 4254 [2021-08-21 11:46:59,550 INFO L226 Difference]: Without dead ends: 4082 [2021-08-21 11:46:59,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 2508.1ms TimeCoverageRelationStatistics Valid=610, Invalid=2696, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:46:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4082 states. [2021-08-21 11:46:59,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4082 to 3512. [2021-08-21 11:46:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 3511 states have (on average 2.679863286812874) internal successors, (9409), 3511 states have internal predecessors, (9409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:59,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 9409 transitions. [2021-08-21 11:46:59,588 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 9409 transitions. Word has length 119 [2021-08-21 11:46:59,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:46:59,588 INFO L470 AbstractCegarLoop]: Abstraction has 3512 states and 9409 transitions. [2021-08-21 11:46:59,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:46:59,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 9409 transitions. [2021-08-21 11:46:59,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:46:59,591 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:46:59,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:46:59,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-08-21 11:46:59,592 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:46:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:46:59,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1415799993, now seen corresponding path program 21 times [2021-08-21 11:46:59,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:46:59,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615061450] [2021-08-21 11:46:59,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:46:59,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:46:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:00,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:00,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:00,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615061450] [2021-08-21 11:47:00,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615061450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:00,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:00,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:00,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030016144] [2021-08-21 11:47:00,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:00,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:00,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:00,650 INFO L87 Difference]: Start difference. First operand 3512 states and 9409 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:03,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:03,276 INFO L93 Difference]: Finished difference Result 4872 states and 12826 transitions. [2021-08-21 11:47:03,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:47:03,276 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:03,282 INFO L225 Difference]: With dead ends: 4872 [2021-08-21 11:47:03,282 INFO L226 Difference]: Without dead ends: 4702 [2021-08-21 11:47:03,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 2250.1ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:47:03,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4702 states. [2021-08-21 11:47:03,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4702 to 3776. [2021-08-21 11:47:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3775 states have (on average 2.6773509933774835) internal successors, (10107), 3775 states have internal predecessors, (10107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 10107 transitions. [2021-08-21 11:47:03,334 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 10107 transitions. Word has length 119 [2021-08-21 11:47:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:03,334 INFO L470 AbstractCegarLoop]: Abstraction has 3776 states and 10107 transitions. [2021-08-21 11:47:03,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 10107 transitions. [2021-08-21 11:47:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:03,337 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:03,338 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:03,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-08-21 11:47:03,338 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:03,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:03,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2097674399, now seen corresponding path program 22 times [2021-08-21 11:47:03,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:03,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009620719] [2021-08-21 11:47:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:03,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:04,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:04,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:04,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009620719] [2021-08-21 11:47:04,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009620719] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:04,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:04,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:47:04,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387004430] [2021-08-21 11:47:04,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:47:04,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:04,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:47:04,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:47:04,396 INFO L87 Difference]: Start difference. First operand 3776 states and 10107 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:07,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:07,798 INFO L93 Difference]: Finished difference Result 5140 states and 13572 transitions. [2021-08-21 11:47:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:47:07,798 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:07,805 INFO L225 Difference]: With dead ends: 5140 [2021-08-21 11:47:07,805 INFO L226 Difference]: Without dead ends: 4749 [2021-08-21 11:47:07,805 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 2834.2ms TimeCoverageRelationStatistics Valid=698, Invalid=3208, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:47:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4749 states. [2021-08-21 11:47:07,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 3800. [2021-08-21 11:47:07,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3800 states, 3799 states have (on average 2.673071861016057) internal successors, (10155), 3799 states have internal predecessors, (10155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:07,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 10155 transitions. [2021-08-21 11:47:07,849 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 10155 transitions. Word has length 119 [2021-08-21 11:47:07,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:07,849 INFO L470 AbstractCegarLoop]: Abstraction has 3800 states and 10155 transitions. [2021-08-21 11:47:07,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:07,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 10155 transitions. [2021-08-21 11:47:07,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:07,853 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:07,853 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:07,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-08-21 11:47:07,853 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:07,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:07,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1435109147, now seen corresponding path program 23 times [2021-08-21 11:47:07,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:07,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496860136] [2021-08-21 11:47:07,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:07,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:08,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:08,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:08,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496860136] [2021-08-21 11:47:08,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496860136] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:08,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:08,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:47:08,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311088105] [2021-08-21 11:47:08,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:47:08,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:08,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:47:08,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:47:08,945 INFO L87 Difference]: Start difference. First operand 3800 states and 10155 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:12,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:12,050 INFO L93 Difference]: Finished difference Result 4855 states and 12765 transitions. [2021-08-21 11:47:12,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-21 11:47:12,051 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:12,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:12,055 INFO L225 Difference]: With dead ends: 4855 [2021-08-21 11:47:12,056 INFO L226 Difference]: Without dead ends: 4413 [2021-08-21 11:47:12,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 2625.6ms TimeCoverageRelationStatistics Valid=715, Invalid=3445, Unknown=0, NotChecked=0, Total=4160 [2021-08-21 11:47:12,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2021-08-21 11:47:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 3500. [2021-08-21 11:47:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3499 states have (on average 2.665332952272078) internal successors, (9326), 3499 states have internal predecessors, (9326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:12,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 9326 transitions. [2021-08-21 11:47:12,095 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 9326 transitions. Word has length 119 [2021-08-21 11:47:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:12,095 INFO L470 AbstractCegarLoop]: Abstraction has 3500 states and 9326 transitions. [2021-08-21 11:47:12,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 9326 transitions. [2021-08-21 11:47:12,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:12,099 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:12,099 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:12,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-08-21 11:47:12,099 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:12,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:12,099 INFO L82 PathProgramCache]: Analyzing trace with hash 385258377, now seen corresponding path program 24 times [2021-08-21 11:47:12,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:12,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490124422] [2021-08-21 11:47:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:12,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:12,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:12,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490124422] [2021-08-21 11:47:12,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490124422] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:12,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:12,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20620440] [2021-08-21 11:47:12,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:12,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:12,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:12,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:12,881 INFO L87 Difference]: Start difference. First operand 3500 states and 9326 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:15,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:15,214 INFO L93 Difference]: Finished difference Result 4048 states and 10585 transitions. [2021-08-21 11:47:15,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:47:15,215 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:15,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:15,219 INFO L225 Difference]: With dead ends: 4048 [2021-08-21 11:47:15,219 INFO L226 Difference]: Without dead ends: 3834 [2021-08-21 11:47:15,220 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1789.8ms TimeCoverageRelationStatistics Valid=583, Invalid=2609, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:47:15,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3834 states. [2021-08-21 11:47:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3834 to 3496. [2021-08-21 11:47:15,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3495 states have (on average 2.663805436337625) internal successors, (9310), 3495 states have internal predecessors, (9310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 9310 transitions. [2021-08-21 11:47:15,255 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 9310 transitions. Word has length 119 [2021-08-21 11:47:15,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:15,255 INFO L470 AbstractCegarLoop]: Abstraction has 3496 states and 9310 transitions. [2021-08-21 11:47:15,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 9310 transitions. [2021-08-21 11:47:15,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:15,259 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:15,259 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:15,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-08-21 11:47:15,259 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:15,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:15,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1332839561, now seen corresponding path program 25 times [2021-08-21 11:47:15,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:15,259 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347730089] [2021-08-21 11:47:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:15,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:16,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:16,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347730089] [2021-08-21 11:47:16,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347730089] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:16,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:16,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:16,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747948930] [2021-08-21 11:47:16,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:16,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:16,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:16,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:16,076 INFO L87 Difference]: Start difference. First operand 3496 states and 9310 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:19,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:19,204 INFO L93 Difference]: Finished difference Result 4368 states and 11457 transitions. [2021-08-21 11:47:19,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:47:19,204 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:19,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:19,210 INFO L225 Difference]: With dead ends: 4368 [2021-08-21 11:47:19,210 INFO L226 Difference]: Without dead ends: 4196 [2021-08-21 11:47:19,211 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 2484.2ms TimeCoverageRelationStatistics Valid=640, Invalid=2782, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:47:19,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4196 states. [2021-08-21 11:47:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4196 to 3556. [2021-08-21 11:47:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3556 states, 3555 states have (on average 2.669198312236287) internal successors, (9489), 3555 states have internal predecessors, (9489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 9489 transitions. [2021-08-21 11:47:19,279 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 9489 transitions. Word has length 119 [2021-08-21 11:47:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:19,280 INFO L470 AbstractCegarLoop]: Abstraction has 3556 states and 9489 transitions. [2021-08-21 11:47:19,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 9489 transitions. [2021-08-21 11:47:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:19,284 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:19,284 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:19,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-08-21 11:47:19,284 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1980882683, now seen corresponding path program 26 times [2021-08-21 11:47:19,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:19,285 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301284803] [2021-08-21 11:47:19,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:19,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:20,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:20,133 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301284803] [2021-08-21 11:47:20,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301284803] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:20,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:20,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:20,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179620052] [2021-08-21 11:47:20,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:20,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:20,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:20,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:20,158 INFO L87 Difference]: Start difference. First operand 3556 states and 9489 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:23,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:23,107 INFO L93 Difference]: Finished difference Result 5070 states and 13289 transitions. [2021-08-21 11:47:23,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:47:23,108 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:23,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:23,114 INFO L225 Difference]: With dead ends: 5070 [2021-08-21 11:47:23,114 INFO L226 Difference]: Without dead ends: 4900 [2021-08-21 11:47:23,115 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 2373.0ms TimeCoverageRelationStatistics Valid=586, Invalid=2836, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:47:23,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4900 states. [2021-08-21 11:47:23,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4900 to 3820. [2021-08-21 11:47:23,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3820 states, 3819 states have (on average 2.667452212621105) internal successors, (10187), 3819 states have internal predecessors, (10187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:23,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 10187 transitions. [2021-08-21 11:47:23,156 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 10187 transitions. Word has length 119 [2021-08-21 11:47:23,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:23,156 INFO L470 AbstractCegarLoop]: Abstraction has 3820 states and 10187 transitions. [2021-08-21 11:47:23,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:23,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 10187 transitions. [2021-08-21 11:47:23,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:23,160 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:23,160 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:23,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-08-21 11:47:23,161 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:23,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1532591709, now seen corresponding path program 27 times [2021-08-21 11:47:23,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:23,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593887919] [2021-08-21 11:47:23,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:23,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:24,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:24,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:24,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593887919] [2021-08-21 11:47:24,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593887919] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:24,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:24,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:47:24,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482897333] [2021-08-21 11:47:24,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:47:24,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:24,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:47:24,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:47:24,177 INFO L87 Difference]: Start difference. First operand 3820 states and 10187 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:27,649 INFO L93 Difference]: Finished difference Result 5338 states and 14035 transitions. [2021-08-21 11:47:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:47:27,649 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:27,654 INFO L225 Difference]: With dead ends: 5338 [2021-08-21 11:47:27,654 INFO L226 Difference]: Without dead ends: 4947 [2021-08-21 11:47:27,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 710 ImplicationChecksByTransitivity, 2946.6ms TimeCoverageRelationStatistics Valid=727, Invalid=3305, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:47:27,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4947 states. [2021-08-21 11:47:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4947 to 3844. [2021-08-21 11:47:27,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3843 states have (on average 2.6632838927920894) internal successors, (10235), 3843 states have internal predecessors, (10235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 10235 transitions. [2021-08-21 11:47:27,694 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 10235 transitions. Word has length 119 [2021-08-21 11:47:27,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:27,694 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 10235 transitions. [2021-08-21 11:47:27,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 10235 transitions. [2021-08-21 11:47:27,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:27,698 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:27,698 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:27,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-08-21 11:47:27,698 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:27,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:27,698 INFO L82 PathProgramCache]: Analyzing trace with hash 2000191837, now seen corresponding path program 28 times [2021-08-21 11:47:27,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:27,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739848291] [2021-08-21 11:47:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:27,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:28,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:28,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:28,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739848291] [2021-08-21 11:47:28,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739848291] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:28,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:28,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:47:28,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484540699] [2021-08-21 11:47:28,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:47:28,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:28,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:47:28,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:47:28,788 INFO L87 Difference]: Start difference. First operand 3844 states and 10235 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:32,406 INFO L93 Difference]: Finished difference Result 5053 states and 13228 transitions. [2021-08-21 11:47:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-21 11:47:32,407 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:32,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:32,413 INFO L225 Difference]: With dead ends: 5053 [2021-08-21 11:47:32,413 INFO L226 Difference]: Without dead ends: 4611 [2021-08-21 11:47:32,414 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 3110.6ms TimeCoverageRelationStatistics Valid=746, Invalid=3544, Unknown=0, NotChecked=0, Total=4290 [2021-08-21 11:47:32,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4611 states. [2021-08-21 11:47:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4611 to 3496. [2021-08-21 11:47:32,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3496 states, 3495 states have (on average 2.663805436337625) internal successors, (9310), 3495 states have internal predecessors, (9310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:32,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3496 states to 3496 states and 9310 transitions. [2021-08-21 11:47:32,451 INFO L78 Accepts]: Start accepts. Automaton has 3496 states and 9310 transitions. Word has length 119 [2021-08-21 11:47:32,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:32,452 INFO L470 AbstractCegarLoop]: Abstraction has 3496 states and 9310 transitions. [2021-08-21 11:47:32,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:32,452 INFO L276 IsEmpty]: Start isEmpty. Operand 3496 states and 9310 transitions. [2021-08-21 11:47:32,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:32,455 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:32,455 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:32,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-08-21 11:47:32,455 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:32,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:32,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1734514933, now seen corresponding path program 29 times [2021-08-21 11:47:32,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:32,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606683034] [2021-08-21 11:47:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:32,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:33,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:33,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606683034] [2021-08-21 11:47:33,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606683034] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:33,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:33,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:33,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573735360] [2021-08-21 11:47:33,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:33,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:33,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:33,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:33,491 INFO L87 Difference]: Start difference. First operand 3496 states and 9310 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:36,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:36,672 INFO L93 Difference]: Finished difference Result 4170 states and 10878 transitions. [2021-08-21 11:47:36,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:47:36,672 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:36,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:36,678 INFO L225 Difference]: With dead ends: 4170 [2021-08-21 11:47:36,678 INFO L226 Difference]: Without dead ends: 3998 [2021-08-21 11:47:36,679 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 2665.2ms TimeCoverageRelationStatistics Valid=640, Invalid=2782, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:47:36,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2021-08-21 11:47:36,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3500. [2021-08-21 11:47:36,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 3499 states have (on average 2.6630465847384968) internal successors, (9318), 3499 states have internal predecessors, (9318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 9318 transitions. [2021-08-21 11:47:36,734 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 9318 transitions. Word has length 119 [2021-08-21 11:47:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:36,734 INFO L470 AbstractCegarLoop]: Abstraction has 3500 states and 9318 transitions. [2021-08-21 11:47:36,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:36,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 9318 transitions. [2021-08-21 11:47:36,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:36,739 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:36,740 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:36,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-08-21 11:47:36,740 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:36,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:36,740 INFO L82 PathProgramCache]: Analyzing trace with hash 245336871, now seen corresponding path program 30 times [2021-08-21 11:47:36,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:36,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303559192] [2021-08-21 11:47:36,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:36,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:36,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:37,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:37,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:37,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303559192] [2021-08-21 11:47:37,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303559192] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:37,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:37,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:37,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153444905] [2021-08-21 11:47:37,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:37,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:37,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:37,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:37,833 INFO L87 Difference]: Start difference. First operand 3500 states and 9318 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:40,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:40,929 INFO L93 Difference]: Finished difference Result 4145 states and 10817 transitions. [2021-08-21 11:47:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:47:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:40,935 INFO L225 Difference]: With dead ends: 4145 [2021-08-21 11:47:40,935 INFO L226 Difference]: Without dead ends: 3954 [2021-08-21 11:47:40,936 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2655.0ms TimeCoverageRelationStatistics Valid=624, Invalid=2798, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:47:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3954 states. [2021-08-21 11:47:40,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3954 to 3498. [2021-08-21 11:47:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 3497 states have (on average 2.6628538747497856) internal successors, (9312), 3497 states have internal predecessors, (9312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:40,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 9312 transitions. [2021-08-21 11:47:40,970 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 9312 transitions. Word has length 119 [2021-08-21 11:47:40,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:40,971 INFO L470 AbstractCegarLoop]: Abstraction has 3498 states and 9312 transitions. [2021-08-21 11:47:40,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 9312 transitions. [2021-08-21 11:47:40,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:40,974 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:40,974 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:40,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-08-21 11:47:40,974 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:40,974 INFO L82 PathProgramCache]: Analyzing trace with hash -108488669, now seen corresponding path program 31 times [2021-08-21 11:47:40,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:40,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224423948] [2021-08-21 11:47:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:40,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:42,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:42,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:42,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224423948] [2021-08-21 11:47:42,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224423948] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:42,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:42,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-21 11:47:42,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949056378] [2021-08-21 11:47:42,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-21 11:47:42,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:42,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-21 11:47:42,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-08-21 11:47:42,014 INFO L87 Difference]: Start difference. First operand 3498 states and 9312 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:44,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:44,919 INFO L93 Difference]: Finished difference Result 4862 states and 12673 transitions. [2021-08-21 11:47:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:47:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:44,924 INFO L225 Difference]: With dead ends: 4862 [2021-08-21 11:47:44,924 INFO L226 Difference]: Without dead ends: 4673 [2021-08-21 11:47:44,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 2503.1ms TimeCoverageRelationStatistics Valid=590, Invalid=2950, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:47:44,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2021-08-21 11:47:44,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 3558. [2021-08-21 11:47:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3558 states, 3557 states have (on average 2.6631993252741073) internal successors, (9473), 3557 states have internal predecessors, (9473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3558 states to 3558 states and 9473 transitions. [2021-08-21 11:47:44,962 INFO L78 Accepts]: Start accepts. Automaton has 3558 states and 9473 transitions. Word has length 119 [2021-08-21 11:47:44,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:44,962 INFO L470 AbstractCegarLoop]: Abstraction has 3558 states and 9473 transitions. [2021-08-21 11:47:44,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:44,962 INFO L276 IsEmpty]: Start isEmpty. Operand 3558 states and 9473 transitions. [2021-08-21 11:47:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:44,965 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:44,965 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:44,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-08-21 11:47:44,966 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:44,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:44,966 INFO L82 PathProgramCache]: Analyzing trace with hash -20482009, now seen corresponding path program 32 times [2021-08-21 11:47:44,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:44,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188415092] [2021-08-21 11:47:44,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:44,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:45,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:45,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188415092] [2021-08-21 11:47:45,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188415092] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:45,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:45,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-21 11:47:45,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735625481] [2021-08-21 11:47:45,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-21 11:47:45,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-21 11:47:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-08-21 11:47:45,744 INFO L87 Difference]: Start difference. First operand 3558 states and 9473 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:48,244 INFO L93 Difference]: Finished difference Result 4805 states and 12621 transitions. [2021-08-21 11:47:48,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:47:48,244 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:48,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:48,250 INFO L225 Difference]: With dead ends: 4805 [2021-08-21 11:47:48,251 INFO L226 Difference]: Without dead ends: 4635 [2021-08-21 11:47:48,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 2015.1ms TimeCoverageRelationStatistics Valid=544, Invalid=2648, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:47:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4635 states. [2021-08-21 11:47:48,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4635 to 3798. [2021-08-21 11:47:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3798 states, 3797 states have (on average 2.6660521464313933) internal successors, (10123), 3797 states have internal predecessors, (10123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3798 states to 3798 states and 10123 transitions. [2021-08-21 11:47:48,297 INFO L78 Accepts]: Start accepts. Automaton has 3798 states and 10123 transitions. Word has length 119 [2021-08-21 11:47:48,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:48,297 INFO L470 AbstractCegarLoop]: Abstraction has 3798 states and 10123 transitions. [2021-08-21 11:47:48,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:48,298 INFO L276 IsEmpty]: Start isEmpty. Operand 3798 states and 10123 transitions. [2021-08-21 11:47:48,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:48,301 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:48,301 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:48,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-08-21 11:47:48,301 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:48,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:48,302 INFO L82 PathProgramCache]: Analyzing trace with hash 761010895, now seen corresponding path program 33 times [2021-08-21 11:47:48,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:48,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165189766] [2021-08-21 11:47:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:48,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:49,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:49,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165189766] [2021-08-21 11:47:49,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165189766] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:49,259 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:49,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:47:49,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771907152] [2021-08-21 11:47:49,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:47:49,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:49,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:47:49,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=785, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:47:49,260 INFO L87 Difference]: Start difference. First operand 3798 states and 10123 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:52,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:52,364 INFO L93 Difference]: Finished difference Result 5095 states and 13341 transitions. [2021-08-21 11:47:52,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:47:52,364 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:52,370 INFO L225 Difference]: With dead ends: 5095 [2021-08-21 11:47:52,370 INFO L226 Difference]: Without dead ends: 4704 [2021-08-21 11:47:52,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 2556.9ms TimeCoverageRelationStatistics Valid=709, Invalid=3323, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:47:52,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4704 states. [2021-08-21 11:47:52,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4704 to 3822. [2021-08-21 11:47:52,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3822 states, 3821 states have (on average 2.6618686207799005) internal successors, (10171), 3821 states have internal predecessors, (10171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:52,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3822 states to 3822 states and 10171 transitions. [2021-08-21 11:47:52,411 INFO L78 Accepts]: Start accepts. Automaton has 3822 states and 10171 transitions. Word has length 119 [2021-08-21 11:47:52,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:52,412 INFO L470 AbstractCegarLoop]: Abstraction has 3822 states and 10171 transitions. [2021-08-21 11:47:52,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:52,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3822 states and 10171 transitions. [2021-08-21 11:47:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:52,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:52,416 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:52,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-08-21 11:47:52,416 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:52,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:52,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1172855, now seen corresponding path program 34 times [2021-08-21 11:47:52,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:52,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886955398] [2021-08-21 11:47:52,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:52,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:53,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:53,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:53,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886955398] [2021-08-21 11:47:53,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886955398] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:53,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:53,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-08-21 11:47:53,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290848564] [2021-08-21 11:47:53,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-21 11:47:53,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:53,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-21 11:47:53,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-08-21 11:47:53,347 INFO L87 Difference]: Start difference. First operand 3822 states and 10171 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:56,065 INFO L93 Difference]: Finished difference Result 4810 states and 12534 transitions. [2021-08-21 11:47:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:47:56,065 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:56,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:56,071 INFO L225 Difference]: With dead ends: 4810 [2021-08-21 11:47:56,071 INFO L226 Difference]: Without dead ends: 4284 [2021-08-21 11:47:56,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 723 ImplicationChecksByTransitivity, 2378.0ms TimeCoverageRelationStatistics Valid=680, Invalid=3352, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:47:56,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4284 states. [2021-08-21 11:47:56,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4284 to 3438. [2021-08-21 11:47:56,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3438 states, 3437 states have (on average 2.660750654640675) internal successors, (9145), 3437 states have internal predecessors, (9145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3438 states to 3438 states and 9145 transitions. [2021-08-21 11:47:56,112 INFO L78 Accepts]: Start accepts. Automaton has 3438 states and 9145 transitions. Word has length 119 [2021-08-21 11:47:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:56,113 INFO L470 AbstractCegarLoop]: Abstraction has 3438 states and 9145 transitions. [2021-08-21 11:47:56,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 3438 states and 9145 transitions. [2021-08-21 11:47:56,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:56,116 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:56,116 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:56,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-08-21 11:47:56,117 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:56,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:56,117 INFO L82 PathProgramCache]: Analyzing trace with hash 818223733, now seen corresponding path program 35 times [2021-08-21 11:47:56,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:56,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962999374] [2021-08-21 11:47:56,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:56,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:47:56,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:47:56,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:47:56,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962999374] [2021-08-21 11:47:56,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962999374] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:47:56,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:47:56,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:47:56,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614169628] [2021-08-21 11:47:56,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:47:56,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:47:56,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:47:56,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:47:56,905 INFO L87 Difference]: Start difference. First operand 3438 states and 9145 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:47:59,480 INFO L93 Difference]: Finished difference Result 3872 states and 10051 transitions. [2021-08-21 11:47:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:47:59,481 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:47:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:47:59,485 INFO L225 Difference]: With dead ends: 3872 [2021-08-21 11:47:59,485 INFO L226 Difference]: Without dead ends: 3694 [2021-08-21 11:47:59,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 2012.0ms TimeCoverageRelationStatistics Valid=583, Invalid=2609, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:47:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3694 states. [2021-08-21 11:47:59,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3694 to 3452. [2021-08-21 11:47:59,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3451 states have (on average 2.658359895682411) internal successors, (9174), 3451 states have internal predecessors, (9174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:59,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9174 transitions. [2021-08-21 11:47:59,521 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9174 transitions. Word has length 119 [2021-08-21 11:47:59,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:47:59,522 INFO L470 AbstractCegarLoop]: Abstraction has 3452 states and 9174 transitions. [2021-08-21 11:47:59,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:47:59,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9174 transitions. [2021-08-21 11:47:59,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:47:59,525 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:47:59,525 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:47:59,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-08-21 11:47:59,526 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:47:59,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:47:59,526 INFO L82 PathProgramCache]: Analyzing trace with hash 324607799, now seen corresponding path program 36 times [2021-08-21 11:47:59,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:47:59,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063463780] [2021-08-21 11:47:59,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:47:59,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:47:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:00,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:00,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063463780] [2021-08-21 11:48:00,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063463780] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:00,603 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:00,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:00,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650926069] [2021-08-21 11:48:00,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:00,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:00,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:00,604 INFO L87 Difference]: Start difference. First operand 3452 states and 9174 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:03,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:03,807 INFO L93 Difference]: Finished difference Result 3858 states and 10010 transitions. [2021-08-21 11:48:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:48:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:03,812 INFO L225 Difference]: With dead ends: 3858 [2021-08-21 11:48:03,812 INFO L226 Difference]: Without dead ends: 3686 [2021-08-21 11:48:03,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 2651.6ms TimeCoverageRelationStatistics Valid=610, Invalid=2696, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:48:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2021-08-21 11:48:03,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3456. [2021-08-21 11:48:03,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3455 states have (on average 2.657597684515195) internal successors, (9182), 3455 states have internal predecessors, (9182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 9182 transitions. [2021-08-21 11:48:03,845 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 9182 transitions. Word has length 119 [2021-08-21 11:48:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:03,845 INFO L470 AbstractCegarLoop]: Abstraction has 3456 states and 9182 transitions. [2021-08-21 11:48:03,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 9182 transitions. [2021-08-21 11:48:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:03,849 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:03,849 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:03,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-08-21 11:48:03,849 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:03,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:03,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1990507693, now seen corresponding path program 37 times [2021-08-21 11:48:03,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:03,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256221654] [2021-08-21 11:48:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:03,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:04,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:04,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256221654] [2021-08-21 11:48:04,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256221654] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:04,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:04,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:04,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155998097] [2021-08-21 11:48:04,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:04,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:04,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:04,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:04,939 INFO L87 Difference]: Start difference. First operand 3456 states and 9182 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:07,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:07,967 INFO L93 Difference]: Finished difference Result 3827 states and 9934 transitions. [2021-08-21 11:48:07,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:48:07,979 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:07,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:07,984 INFO L225 Difference]: With dead ends: 3827 [2021-08-21 11:48:07,984 INFO L226 Difference]: Without dead ends: 3594 [2021-08-21 11:48:07,984 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 2630.5ms TimeCoverageRelationStatistics Valid=595, Invalid=2711, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:48:07,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2021-08-21 11:48:08,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3410. [2021-08-21 11:48:08,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 2.66031094162511) internal successors, (9069), 3409 states have internal predecessors, (9069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 9069 transitions. [2021-08-21 11:48:08,016 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 9069 transitions. Word has length 119 [2021-08-21 11:48:08,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:08,016 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 9069 transitions. [2021-08-21 11:48:08,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 9069 transitions. [2021-08-21 11:48:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:08,020 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:08,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:08,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-08-21 11:48:08,020 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:08,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:08,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1629601497, now seen corresponding path program 38 times [2021-08-21 11:48:08,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:08,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140113900] [2021-08-21 11:48:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:08,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:09,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:09,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140113900] [2021-08-21 11:48:09,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140113900] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:09,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:09,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:09,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937214978] [2021-08-21 11:48:09,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:09,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:09,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:09,076 INFO L87 Difference]: Start difference. First operand 3410 states and 9069 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:11,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:11,783 INFO L93 Difference]: Finished difference Result 3768 states and 9918 transitions. [2021-08-21 11:48:11,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:48:11,783 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:11,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:11,788 INFO L225 Difference]: With dead ends: 3768 [2021-08-21 11:48:11,788 INFO L226 Difference]: Without dead ends: 3636 [2021-08-21 11:48:11,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 2431.3ms TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:48:11,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3636 states. [2021-08-21 11:48:11,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3636 to 3412. [2021-08-21 11:48:11,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 3411 states have (on average 2.6596306068601585) internal successors, (9072), 3411 states have internal predecessors, (9072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 9072 transitions. [2021-08-21 11:48:11,822 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 9072 transitions. Word has length 119 [2021-08-21 11:48:11,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:11,822 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 9072 transitions. [2021-08-21 11:48:11,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 9072 transitions. [2021-08-21 11:48:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:11,825 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:11,825 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:11,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-08-21 11:48:11,825 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:11,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:11,826 INFO L82 PathProgramCache]: Analyzing trace with hash 350250307, now seen corresponding path program 39 times [2021-08-21 11:48:11,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:11,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029707404] [2021-08-21 11:48:11,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:11,826 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:12,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:12,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:12,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029707404] [2021-08-21 11:48:12,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029707404] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:12,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:12,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:12,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224411322] [2021-08-21 11:48:12,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:12,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:12,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:12,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:12,881 INFO L87 Difference]: Start difference. First operand 3412 states and 9072 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:15,595 INFO L93 Difference]: Finished difference Result 3779 states and 9943 transitions. [2021-08-21 11:48:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:48:15,595 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:15,601 INFO L225 Difference]: With dead ends: 3779 [2021-08-21 11:48:15,601 INFO L226 Difference]: Without dead ends: 3632 [2021-08-21 11:48:15,601 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 2352.7ms TimeCoverageRelationStatistics Valid=495, Invalid=2367, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:48:15,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3632 states. [2021-08-21 11:48:15,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3632 to 3410. [2021-08-21 11:48:15,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 2.6600176004693457) internal successors, (9068), 3409 states have internal predecessors, (9068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:15,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 9068 transitions. [2021-08-21 11:48:15,635 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 9068 transitions. Word has length 119 [2021-08-21 11:48:15,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:15,635 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 9068 transitions. [2021-08-21 11:48:15,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:15,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 9068 transitions. [2021-08-21 11:48:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:15,639 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:15,639 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:15,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-08-21 11:48:15,639 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:15,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:15,639 INFO L82 PathProgramCache]: Analyzing trace with hash -3575233, now seen corresponding path program 40 times [2021-08-21 11:48:15,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:15,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090273648] [2021-08-21 11:48:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:15,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:16,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:16,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:16,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090273648] [2021-08-21 11:48:16,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090273648] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:16,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:16,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-21 11:48:16,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193552633] [2021-08-21 11:48:16,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-21 11:48:16,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:16,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-21 11:48:16,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-08-21 11:48:16,596 INFO L87 Difference]: Start difference. First operand 3410 states and 9068 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:19,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:19,003 INFO L93 Difference]: Finished difference Result 3882 states and 10164 transitions. [2021-08-21 11:48:19,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:48:19,003 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:19,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:19,008 INFO L225 Difference]: With dead ends: 3882 [2021-08-21 11:48:19,008 INFO L226 Difference]: Without dead ends: 3737 [2021-08-21 11:48:19,008 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2064.7ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:48:19,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-08-21 11:48:19,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 3410. [2021-08-21 11:48:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 2.658550894690525) internal successors, (9063), 3409 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:19,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 9063 transitions. [2021-08-21 11:48:19,039 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 9063 transitions. Word has length 119 [2021-08-21 11:48:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:19,040 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 9063 transitions. [2021-08-21 11:48:19,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 9063 transitions. [2021-08-21 11:48:19,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:19,043 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:19,043 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:19,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-08-21 11:48:19,043 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:19,043 INFO L82 PathProgramCache]: Analyzing trace with hash 84431427, now seen corresponding path program 41 times [2021-08-21 11:48:19,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:19,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912977848] [2021-08-21 11:48:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:19,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:19,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:19,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:19,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912977848] [2021-08-21 11:48:19,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912977848] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:19,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:19,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-08-21 11:48:19,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88049600] [2021-08-21 11:48:19,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-21 11:48:19,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:19,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-21 11:48:19,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-08-21 11:48:19,961 INFO L87 Difference]: Start difference. First operand 3410 states and 9063 transitions. Second operand has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:22,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:22,681 INFO L93 Difference]: Finished difference Result 3858 states and 10114 transitions. [2021-08-21 11:48:22,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:48:22,681 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:22,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:22,686 INFO L225 Difference]: With dead ends: 3858 [2021-08-21 11:48:22,686 INFO L226 Difference]: Without dead ends: 3728 [2021-08-21 11:48:22,686 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2265.8ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:48:22,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3728 states. [2021-08-21 11:48:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3728 to 3410. [2021-08-21 11:48:22,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 3409 states have (on average 2.654444118509827) internal successors, (9049), 3409 states have internal predecessors, (9049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 9049 transitions. [2021-08-21 11:48:22,724 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 9049 transitions. Word has length 119 [2021-08-21 11:48:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:22,725 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 9049 transitions. [2021-08-21 11:48:22,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.407407407407407) internal successors, (119), 27 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 9049 transitions. [2021-08-21 11:48:22,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:22,729 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:22,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:22,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-08-21 11:48:22,729 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:22,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:22,729 INFO L82 PathProgramCache]: Analyzing trace with hash 103740581, now seen corresponding path program 42 times [2021-08-21 11:48:22,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:22,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451058463] [2021-08-21 11:48:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:22,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:22,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:23,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:23,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:23,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451058463] [2021-08-21 11:48:23,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451058463] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:23,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:23,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-08-21 11:48:23,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562834011] [2021-08-21 11:48:23,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-21 11:48:23,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:23,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-21 11:48:23,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=739, Unknown=0, NotChecked=0, Total=812 [2021-08-21 11:48:23,838 INFO L87 Difference]: Start difference. First operand 3410 states and 9049 transitions. Second operand has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:26,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:26,966 INFO L93 Difference]: Finished difference Result 3863 states and 10099 transitions. [2021-08-21 11:48:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:48:26,967 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:26,972 INFO L225 Difference]: With dead ends: 3863 [2021-08-21 11:48:26,972 INFO L226 Difference]: Without dead ends: 3505 [2021-08-21 11:48:26,972 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2770.1ms TimeCoverageRelationStatistics Valid=549, Invalid=2873, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:48:26,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3505 states. [2021-08-21 11:48:26,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3505 to 3134. [2021-08-21 11:48:27,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3133 states have (on average 2.672518353016278) internal successors, (8373), 3133 states have internal predecessors, (8373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 8373 transitions. [2021-08-21 11:48:27,004 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 8373 transitions. Word has length 119 [2021-08-21 11:48:27,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:27,004 INFO L470 AbstractCegarLoop]: Abstraction has 3134 states and 8373 transitions. [2021-08-21 11:48:27,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.103448275862069) internal successors, (119), 29 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:27,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 8373 transitions. [2021-08-21 11:48:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:27,007 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:27,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:27,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-08-21 11:48:27,007 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:27,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:27,007 INFO L82 PathProgramCache]: Analyzing trace with hash -281711917, now seen corresponding path program 43 times [2021-08-21 11:48:27,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:27,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240204755] [2021-08-21 11:48:27,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:27,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:28,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:28,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:28,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240204755] [2021-08-21 11:48:28,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240204755] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:28,042 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:28,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:28,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333096705] [2021-08-21 11:48:28,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:28,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:28,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:28,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:28,043 INFO L87 Difference]: Start difference. First operand 3134 states and 8373 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:30,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:30,809 INFO L93 Difference]: Finished difference Result 3540 states and 9334 transitions. [2021-08-21 11:48:30,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:48:30,809 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:30,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:30,813 INFO L225 Difference]: With dead ends: 3540 [2021-08-21 11:48:30,813 INFO L226 Difference]: Without dead ends: 3406 [2021-08-21 11:48:30,814 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2319.5ms TimeCoverageRelationStatistics Valid=510, Invalid=2352, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:48:30,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-08-21 11:48:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3132. [2021-08-21 11:48:30,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 3131 states have (on average 2.6726285531778986) internal successors, (8368), 3131 states have internal predecessors, (8368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 8368 transitions. [2021-08-21 11:48:30,847 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 8368 transitions. Word has length 119 [2021-08-21 11:48:30,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:30,847 INFO L470 AbstractCegarLoop]: Abstraction has 3132 states and 8368 transitions. [2021-08-21 11:48:30,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:30,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 8368 transitions. [2021-08-21 11:48:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:30,851 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:30,851 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:30,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-08-21 11:48:30,851 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:30,851 INFO L82 PathProgramCache]: Analyzing trace with hash 388516085, now seen corresponding path program 44 times [2021-08-21 11:48:30,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:30,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364041088] [2021-08-21 11:48:30,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:30,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:31,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:31,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:31,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364041088] [2021-08-21 11:48:31,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364041088] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:31,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:31,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:31,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878377637] [2021-08-21 11:48:31,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:31,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:31,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:31,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:31,886 INFO L87 Difference]: Start difference. First operand 3132 states and 8368 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:34,202 INFO L93 Difference]: Finished difference Result 3769 states and 9801 transitions. [2021-08-21 11:48:34,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:48:34,202 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:34,207 INFO L225 Difference]: With dead ends: 3769 [2021-08-21 11:48:34,207 INFO L226 Difference]: Without dead ends: 3536 [2021-08-21 11:48:34,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 655 ImplicationChecksByTransitivity, 1984.3ms TimeCoverageRelationStatistics Valid=562, Invalid=2630, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:48:34,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2021-08-21 11:48:34,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3089. [2021-08-21 11:48:34,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 3088 states have (on average 2.67389896373057) internal successors, (8257), 3088 states have internal predecessors, (8257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:34,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 8257 transitions. [2021-08-21 11:48:34,239 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 8257 transitions. Word has length 119 [2021-08-21 11:48:34,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:34,239 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 8257 transitions. [2021-08-21 11:48:34,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:34,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 8257 transitions. [2021-08-21 11:48:34,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:34,242 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:34,242 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:34,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-08-21 11:48:34,243 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:34,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:34,243 INFO L82 PathProgramCache]: Analyzing trace with hash -346872247, now seen corresponding path program 45 times [2021-08-21 11:48:34,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:34,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990735721] [2021-08-21 11:48:34,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:34,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:35,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:35,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:35,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990735721] [2021-08-21 11:48:35,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990735721] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:35,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:35,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:35,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564578386] [2021-08-21 11:48:35,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:35,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:35,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:35,239 INFO L87 Difference]: Start difference. First operand 3089 states and 8257 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:38,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:38,159 INFO L93 Difference]: Finished difference Result 3545 states and 9226 transitions. [2021-08-21 11:48:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:48:38,159 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:38,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:38,164 INFO L225 Difference]: With dead ends: 3545 [2021-08-21 11:48:38,164 INFO L226 Difference]: Without dead ends: 3367 [2021-08-21 11:48:38,165 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2465.6ms TimeCoverageRelationStatistics Valid=583, Invalid=2609, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:48:38,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2021-08-21 11:48:38,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3127. [2021-08-21 11:48:38,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 2.669865642994242) internal successors, (8346), 3126 states have internal predecessors, (8346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 8346 transitions. [2021-08-21 11:48:38,196 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 8346 transitions. Word has length 119 [2021-08-21 11:48:38,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:38,196 INFO L470 AbstractCegarLoop]: Abstraction has 3127 states and 8346 transitions. [2021-08-21 11:48:38,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:38,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 8346 transitions. [2021-08-21 11:48:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:38,199 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:38,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:38,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-08-21 11:48:38,199 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:38,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:38,200 INFO L82 PathProgramCache]: Analyzing trace with hash -840488181, now seen corresponding path program 46 times [2021-08-21 11:48:38,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:38,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534977831] [2021-08-21 11:48:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:38,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:39,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:39,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:39,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534977831] [2021-08-21 11:48:39,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534977831] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:39,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:39,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:39,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311661967] [2021-08-21 11:48:39,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:39,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:39,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:39,180 INFO L87 Difference]: Start difference. First operand 3127 states and 8346 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:42,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:42,226 INFO L93 Difference]: Finished difference Result 3563 states and 9257 transitions. [2021-08-21 11:48:42,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:48:42,227 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:42,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:42,231 INFO L225 Difference]: With dead ends: 3563 [2021-08-21 11:48:42,231 INFO L226 Difference]: Without dead ends: 3391 [2021-08-21 11:48:42,231 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 668 ImplicationChecksByTransitivity, 2523.6ms TimeCoverageRelationStatistics Valid=610, Invalid=2696, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:48:42,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2021-08-21 11:48:42,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3131. [2021-08-21 11:48:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3131 states, 3130 states have (on average 2.6690095846645367) internal successors, (8354), 3130 states have internal predecessors, (8354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:42,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 8354 transitions. [2021-08-21 11:48:42,261 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 8354 transitions. Word has length 119 [2021-08-21 11:48:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:42,261 INFO L470 AbstractCegarLoop]: Abstraction has 3131 states and 8354 transitions. [2021-08-21 11:48:42,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:42,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 8354 transitions. [2021-08-21 11:48:42,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:42,265 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:42,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:42,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-08-21 11:48:42,265 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:42,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:42,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1139363623, now seen corresponding path program 47 times [2021-08-21 11:48:42,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:42,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826020755] [2021-08-21 11:48:42,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:42,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:43,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:43,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826020755] [2021-08-21 11:48:43,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826020755] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:43,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:43,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:43,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024144081] [2021-08-21 11:48:43,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:43,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:43,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:43,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:43,081 INFO L87 Difference]: Start difference. First operand 3131 states and 8354 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:46,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:46,026 INFO L93 Difference]: Finished difference Result 3532 states and 9181 transitions. [2021-08-21 11:48:46,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:48:46,026 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:46,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:46,031 INFO L225 Difference]: With dead ends: 3532 [2021-08-21 11:48:46,031 INFO L226 Difference]: Without dead ends: 3335 [2021-08-21 11:48:46,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2401.5ms TimeCoverageRelationStatistics Valid=595, Invalid=2711, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:48:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3335 states. [2021-08-21 11:48:46,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3335 to 3113. [2021-08-21 11:48:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3112 states have (on average 2.670629820051414) internal successors, (8311), 3112 states have internal predecessors, (8311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:46,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 8311 transitions. [2021-08-21 11:48:46,063 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 8311 transitions. Word has length 119 [2021-08-21 11:48:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:46,063 INFO L470 AbstractCegarLoop]: Abstraction has 3113 states and 8311 transitions. [2021-08-21 11:48:46,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 8311 transitions. [2021-08-21 11:48:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:46,066 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:46,066 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:46,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-08-21 11:48:46,066 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:46,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:46,067 INFO L82 PathProgramCache]: Analyzing trace with hash -873416665, now seen corresponding path program 48 times [2021-08-21 11:48:46,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:46,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592283242] [2021-08-21 11:48:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:46,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:46,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:47,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:47,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:47,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592283242] [2021-08-21 11:48:47,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592283242] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:47,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:47,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:47,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028042237] [2021-08-21 11:48:47,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:47,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:47,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:47,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:47,089 INFO L87 Difference]: Start difference. First operand 3113 states and 8311 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:49,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:49,665 INFO L93 Difference]: Finished difference Result 3357 states and 8819 transitions. [2021-08-21 11:48:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:48:49,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:49,669 INFO L225 Difference]: With dead ends: 3357 [2021-08-21 11:48:49,669 INFO L226 Difference]: Without dead ends: 3225 [2021-08-21 11:48:49,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2197.8ms TimeCoverageRelationStatistics Valid=485, Invalid=2271, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:48:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2021-08-21 11:48:49,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3121. [2021-08-21 11:48:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 3120 states have (on average 2.669551282051282) internal successors, (8329), 3120 states have internal predecessors, (8329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:49,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 8329 transitions. [2021-08-21 11:48:49,699 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 8329 transitions. Word has length 119 [2021-08-21 11:48:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:49,699 INFO L470 AbstractCegarLoop]: Abstraction has 3121 states and 8329 transitions. [2021-08-21 11:48:49,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 8329 transitions. [2021-08-21 11:48:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:49,702 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:49,702 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:49,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-08-21 11:48:49,702 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:49,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:49,702 INFO L82 PathProgramCache]: Analyzing trace with hash 1106435139, now seen corresponding path program 49 times [2021-08-21 11:48:49,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:49,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642740909] [2021-08-21 11:48:49,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:49,703 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:50,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:50,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:50,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642740909] [2021-08-21 11:48:50,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642740909] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:50,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:50,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:50,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427489828] [2021-08-21 11:48:50,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:50,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:50,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:50,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:50,708 INFO L87 Difference]: Start difference. First operand 3121 states and 8329 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:53,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:53,120 INFO L93 Difference]: Finished difference Result 3370 states and 8847 transitions. [2021-08-21 11:48:53,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:48:53,120 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:53,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:53,125 INFO L225 Difference]: With dead ends: 3370 [2021-08-21 11:48:53,125 INFO L226 Difference]: Without dead ends: 3223 [2021-08-21 11:48:53,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 2114.5ms TimeCoverageRelationStatistics Valid=471, Invalid=2285, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:48:53,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3223 states. [2021-08-21 11:48:53,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3223 to 3119. [2021-08-21 11:48:53,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3119 states, 3118 states have (on average 2.6696600384862093) internal successors, (8324), 3118 states have internal predecessors, (8324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3119 states to 3119 states and 8324 transitions. [2021-08-21 11:48:53,155 INFO L78 Accepts]: Start accepts. Automaton has 3119 states and 8324 transitions. Word has length 119 [2021-08-21 11:48:53,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:53,155 INFO L470 AbstractCegarLoop]: Abstraction has 3119 states and 8324 transitions. [2021-08-21 11:48:53,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:53,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3119 states and 8324 transitions. [2021-08-21 11:48:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:53,158 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:53,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:53,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-08-21 11:48:53,159 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:53,159 INFO L82 PathProgramCache]: Analyzing trace with hash -203188663, now seen corresponding path program 50 times [2021-08-21 11:48:53,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:53,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435881217] [2021-08-21 11:48:53,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:53,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:54,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:54,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435881217] [2021-08-21 11:48:54,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435881217] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:54,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:54,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-08-21 11:48:54,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146914694] [2021-08-21 11:48:54,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-21 11:48:54,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:54,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-21 11:48:54,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=587, Unknown=0, NotChecked=0, Total=650 [2021-08-21 11:48:54,161 INFO L87 Difference]: Start difference. First operand 3119 states and 8324 transitions. Second operand has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:56,191 INFO L93 Difference]: Finished difference Result 3574 states and 9254 transitions. [2021-08-21 11:48:56,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:48:56,192 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:56,196 INFO L225 Difference]: With dead ends: 3574 [2021-08-21 11:48:56,196 INFO L226 Difference]: Without dead ends: 3234 [2021-08-21 11:48:56,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1804.7ms TimeCoverageRelationStatistics Valid=537, Invalid=2543, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:48:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3234 states. [2021-08-21 11:48:56,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3234 to 2969. [2021-08-21 11:48:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 2968 states have (on average 2.6758760107816713) internal successors, (7942), 2968 states have internal predecessors, (7942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 7942 transitions. [2021-08-21 11:48:56,229 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 7942 transitions. Word has length 119 [2021-08-21 11:48:56,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:56,229 INFO L470 AbstractCegarLoop]: Abstraction has 2969 states and 7942 transitions. [2021-08-21 11:48:56,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.576923076923077) internal successors, (119), 26 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 7942 transitions. [2021-08-21 11:48:56,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:56,232 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:56,232 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:56,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-08-21 11:48:56,232 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:56,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1907779333, now seen corresponding path program 51 times [2021-08-21 11:48:56,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:56,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105256847] [2021-08-21 11:48:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:56,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:56,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:56,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105256847] [2021-08-21 11:48:56,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105256847] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:56,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:56,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-08-21 11:48:56,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281374772] [2021-08-21 11:48:56,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-21 11:48:56,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:56,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-21 11:48:56,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-08-21 11:48:56,425 INFO L87 Difference]: Start difference. First operand 2969 states and 7942 transitions. Second operand has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:56,668 INFO L93 Difference]: Finished difference Result 4302 states and 11307 transitions. [2021-08-21 11:48:56,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 11:48:56,669 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:56,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:56,674 INFO L225 Difference]: With dead ends: 4302 [2021-08-21 11:48:56,674 INFO L226 Difference]: Without dead ends: 4190 [2021-08-21 11:48:56,674 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 187.4ms TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2021-08-21 11:48:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4190 states. [2021-08-21 11:48:56,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4190 to 2915. [2021-08-21 11:48:56,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2914 states have (on average 2.6708991077556625) internal successors, (7783), 2914 states have internal predecessors, (7783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 7783 transitions. [2021-08-21 11:48:56,709 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 7783 transitions. Word has length 119 [2021-08-21 11:48:56,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:56,709 INFO L470 AbstractCegarLoop]: Abstraction has 2915 states and 7783 transitions. [2021-08-21 11:48:56,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.818181818181818) internal successors, (119), 11 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:56,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 7783 transitions. [2021-08-21 11:48:56,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:56,712 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:56,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:56,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-08-21 11:48:56,713 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:56,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:56,713 INFO L82 PathProgramCache]: Analyzing trace with hash -716991517, now seen corresponding path program 52 times [2021-08-21 11:48:56,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:56,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942520292] [2021-08-21 11:48:56,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:56,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:56,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:56,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942520292] [2021-08-21 11:48:56,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942520292] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:56,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:56,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:48:56,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579142623] [2021-08-21 11:48:56,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:48:56,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:56,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:48:56,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:48:56,973 INFO L87 Difference]: Start difference. First operand 2915 states and 7783 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:57,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:48:57,463 INFO L93 Difference]: Finished difference Result 3350 states and 8623 transitions. [2021-08-21 11:48:57,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:48:57,463 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:48:57,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:48:57,468 INFO L225 Difference]: With dead ends: 3350 [2021-08-21 11:48:57,468 INFO L226 Difference]: Without dead ends: 3294 [2021-08-21 11:48:57,468 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 317.1ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:48:57,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3294 states. [2021-08-21 11:48:57,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3294 to 2735. [2021-08-21 11:48:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2734 states have (on average 2.6382589612289684) internal successors, (7213), 2734 states have internal predecessors, (7213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 7213 transitions. [2021-08-21 11:48:57,497 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 7213 transitions. Word has length 119 [2021-08-21 11:48:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:48:57,498 INFO L470 AbstractCegarLoop]: Abstraction has 2735 states and 7213 transitions. [2021-08-21 11:48:57,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:48:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 7213 transitions. [2021-08-21 11:48:57,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:48:57,500 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:48:57,501 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:48:57,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-08-21 11:48:57,501 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:48:57,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:48:57,501 INFO L82 PathProgramCache]: Analyzing trace with hash -191312761, now seen corresponding path program 53 times [2021-08-21 11:48:57,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:48:57,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529961839] [2021-08-21 11:48:57,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:48:57,502 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:48:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:48:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:48:58,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:48:58,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529961839] [2021-08-21 11:48:58,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529961839] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:48:58,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:48:58,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:48:58,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041498966] [2021-08-21 11:48:58,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:48:58,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:48:58,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:48:58,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:48:58,427 INFO L87 Difference]: Start difference. First operand 2735 states and 7213 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:00,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:00,975 INFO L93 Difference]: Finished difference Result 2842 states and 7402 transitions. [2021-08-21 11:49:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:49:00,976 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:00,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:00,980 INFO L225 Difference]: With dead ends: 2842 [2021-08-21 11:49:00,980 INFO L226 Difference]: Without dead ends: 2737 [2021-08-21 11:49:00,980 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2251.0ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:49:00,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2737 states. [2021-08-21 11:49:01,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2737 to 2735. [2021-08-21 11:49:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2734 states have (on average 2.636795903438186) internal successors, (7209), 2734 states have internal predecessors, (7209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:01,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 7209 transitions. [2021-08-21 11:49:01,011 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 7209 transitions. Word has length 119 [2021-08-21 11:49:01,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:01,011 INFO L470 AbstractCegarLoop]: Abstraction has 2735 states and 7209 transitions. [2021-08-21 11:49:01,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 7209 transitions. [2021-08-21 11:49:01,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:01,014 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:01,014 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:01,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-08-21 11:49:01,014 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:01,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1463378827, now seen corresponding path program 54 times [2021-08-21 11:49:01,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:01,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007961774] [2021-08-21 11:49:01,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:01,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:02,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:02,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:02,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007961774] [2021-08-21 11:49:02,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007961774] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:02,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:02,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:02,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386110146] [2021-08-21 11:49:02,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:02,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:02,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:02,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:02,089 INFO L87 Difference]: Start difference. First operand 2735 states and 7209 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:04,783 INFO L93 Difference]: Finished difference Result 3046 states and 7938 transitions. [2021-08-21 11:49:04,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:49:04,783 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:04,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:04,787 INFO L225 Difference]: With dead ends: 3046 [2021-08-21 11:49:04,787 INFO L226 Difference]: Without dead ends: 2951 [2021-08-21 11:49:04,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 514 ImplicationChecksByTransitivity, 2284.4ms TimeCoverageRelationStatistics Valid=476, Invalid=2494, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:49:04,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-08-21 11:49:04,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2879. [2021-08-21 11:49:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2879 states, 2878 states have (on average 2.6334259902710215) internal successors, (7579), 2878 states have internal predecessors, (7579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:04,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2879 states to 2879 states and 7579 transitions. [2021-08-21 11:49:04,857 INFO L78 Accepts]: Start accepts. Automaton has 2879 states and 7579 transitions. Word has length 119 [2021-08-21 11:49:04,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:04,857 INFO L470 AbstractCegarLoop]: Abstraction has 2879 states and 7579 transitions. [2021-08-21 11:49:04,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:04,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2879 states and 7579 transitions. [2021-08-21 11:49:04,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:04,860 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:04,860 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:04,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-08-21 11:49:04,860 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:04,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:04,861 INFO L82 PathProgramCache]: Analyzing trace with hash -320984053, now seen corresponding path program 55 times [2021-08-21 11:49:04,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:04,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133619735] [2021-08-21 11:49:04,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:04,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:04,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:05,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:05,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:05,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133619735] [2021-08-21 11:49:05,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133619735] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:05,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:05,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:05,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699803939] [2021-08-21 11:49:05,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:05,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:05,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:05,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:05,903 INFO L87 Difference]: Start difference. First operand 2879 states and 7579 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:08,821 INFO L93 Difference]: Finished difference Result 3269 states and 8441 transitions. [2021-08-21 11:49:08,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:49:08,821 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:08,825 INFO L225 Difference]: With dead ends: 3269 [2021-08-21 11:49:08,825 INFO L226 Difference]: Without dead ends: 2774 [2021-08-21 11:49:08,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2532.0ms TimeCoverageRelationStatistics Valid=497, Invalid=2583, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:49:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2021-08-21 11:49:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2711. [2021-08-21 11:49:08,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 2.638007380073801) internal successors, (7149), 2710 states have internal predecessors, (7149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 7149 transitions. [2021-08-21 11:49:08,850 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 7149 transitions. Word has length 119 [2021-08-21 11:49:08,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:08,850 INFO L470 AbstractCegarLoop]: Abstraction has 2711 states and 7149 transitions. [2021-08-21 11:49:08,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 7149 transitions. [2021-08-21 11:49:08,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:08,853 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:08,853 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:08,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-08-21 11:49:08,853 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:08,853 INFO L82 PathProgramCache]: Analyzing trace with hash 2094167313, now seen corresponding path program 56 times [2021-08-21 11:49:08,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:08,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599585991] [2021-08-21 11:49:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:08,853 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:09,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:09,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:09,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599585991] [2021-08-21 11:49:09,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599585991] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:09,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:09,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:09,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197402145] [2021-08-21 11:49:09,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:09,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:09,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=791, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:09,797 INFO L87 Difference]: Start difference. First operand 2711 states and 7149 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:12,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:12,207 INFO L93 Difference]: Finished difference Result 2808 states and 7323 transitions. [2021-08-21 11:49:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:49:12,208 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:12,211 INFO L225 Difference]: With dead ends: 2808 [2021-08-21 11:49:12,211 INFO L226 Difference]: Without dead ends: 2651 [2021-08-21 11:49:12,212 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 2071.5ms TimeCoverageRelationStatistics Valid=488, Invalid=2482, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:49:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2651 states. [2021-08-21 11:49:12,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2651 to 2651. [2021-08-21 11:49:12,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2651 states, 2650 states have (on average 2.6539622641509433) internal successors, (7033), 2650 states have internal predecessors, (7033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:12,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 7033 transitions. [2021-08-21 11:49:12,236 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 7033 transitions. Word has length 119 [2021-08-21 11:49:12,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:12,236 INFO L470 AbstractCegarLoop]: Abstraction has 2651 states and 7033 transitions. [2021-08-21 11:49:12,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 7033 transitions. [2021-08-21 11:49:12,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:12,239 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:12,239 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:12,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-08-21 11:49:12,239 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:12,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:12,239 INFO L82 PathProgramCache]: Analyzing trace with hash 833110875, now seen corresponding path program 57 times [2021-08-21 11:49:12,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:12,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766282037] [2021-08-21 11:49:12,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:12,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:13,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:13,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:13,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766282037] [2021-08-21 11:49:13,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766282037] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:13,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:13,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:13,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142304190] [2021-08-21 11:49:13,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:13,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:13,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:13,211 INFO L87 Difference]: Start difference. First operand 2651 states and 7033 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:15,680 INFO L93 Difference]: Finished difference Result 2758 states and 7222 transitions. [2021-08-21 11:49:15,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:49:15,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:15,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:15,684 INFO L225 Difference]: With dead ends: 2758 [2021-08-21 11:49:15,684 INFO L226 Difference]: Without dead ends: 2639 [2021-08-21 11:49:15,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 2273.1ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:49:15,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2021-08-21 11:49:15,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2639. [2021-08-21 11:49:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2639 states, 2638 states have (on average 2.656937073540561) internal successors, (7009), 2638 states have internal predecessors, (7009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 7009 transitions. [2021-08-21 11:49:15,708 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 7009 transitions. Word has length 119 [2021-08-21 11:49:15,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:15,708 INFO L470 AbstractCegarLoop]: Abstraction has 2639 states and 7009 transitions. [2021-08-21 11:49:15,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:15,708 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 7009 transitions. [2021-08-21 11:49:15,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:15,710 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:15,710 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:15,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-08-21 11:49:15,710 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:15,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:15,711 INFO L82 PathProgramCache]: Analyzing trace with hash -910510329, now seen corresponding path program 58 times [2021-08-21 11:49:15,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:15,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906853198] [2021-08-21 11:49:15,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:15,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:16,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:16,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906853198] [2021-08-21 11:49:16,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906853198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:16,674 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:16,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:16,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511975126] [2021-08-21 11:49:16,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:16,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:16,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:16,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:16,675 INFO L87 Difference]: Start difference. First operand 2639 states and 7009 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:19,153 INFO L93 Difference]: Finished difference Result 2782 states and 7292 transitions. [2021-08-21 11:49:19,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:49:19,153 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:19,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:19,156 INFO L225 Difference]: With dead ends: 2782 [2021-08-21 11:49:19,156 INFO L226 Difference]: Without dead ends: 2627 [2021-08-21 11:49:19,156 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 2240.3ms TimeCoverageRelationStatistics Valid=442, Invalid=2210, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:49:19,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2021-08-21 11:49:19,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2587. [2021-08-21 11:49:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2587 states, 2586 states have (on average 2.662799690641918) internal successors, (6886), 2586 states have internal predecessors, (6886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:19,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2587 states to 2587 states and 6886 transitions. [2021-08-21 11:49:19,180 INFO L78 Accepts]: Start accepts. Automaton has 2587 states and 6886 transitions. Word has length 119 [2021-08-21 11:49:19,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:19,180 INFO L470 AbstractCegarLoop]: Abstraction has 2587 states and 6886 transitions. [2021-08-21 11:49:19,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:19,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2587 states and 6886 transitions. [2021-08-21 11:49:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:19,182 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:19,182 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:19,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-08-21 11:49:19,182 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:19,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:19,183 INFO L82 PathProgramCache]: Analyzing trace with hash -619056707, now seen corresponding path program 59 times [2021-08-21 11:49:19,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:19,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597369954] [2021-08-21 11:49:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:19,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:19,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:19,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:19,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597369954] [2021-08-21 11:49:19,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597369954] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:19,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:19,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:49:19,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793369589] [2021-08-21 11:49:19,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:49:19,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:19,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:49:19,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:49:19,473 INFO L87 Difference]: Start difference. First operand 2587 states and 6886 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:19,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:19,990 INFO L93 Difference]: Finished difference Result 4871 states and 12829 transitions. [2021-08-21 11:49:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:49:19,990 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:19,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:19,996 INFO L225 Difference]: With dead ends: 4871 [2021-08-21 11:49:19,996 INFO L226 Difference]: Without dead ends: 4871 [2021-08-21 11:49:19,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 398.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:20,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2021-08-21 11:49:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 2759. [2021-08-21 11:49:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2759 states, 2758 states have (on average 2.656997824510515) internal successors, (7328), 2758 states have internal predecessors, (7328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2759 states to 2759 states and 7328 transitions. [2021-08-21 11:49:20,036 INFO L78 Accepts]: Start accepts. Automaton has 2759 states and 7328 transitions. Word has length 119 [2021-08-21 11:49:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:20,036 INFO L470 AbstractCegarLoop]: Abstraction has 2759 states and 7328 transitions. [2021-08-21 11:49:20,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2759 states and 7328 transitions. [2021-08-21 11:49:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:20,039 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:20,039 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:20,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-08-21 11:49:20,039 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:20,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:20,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1964389359, now seen corresponding path program 60 times [2021-08-21 11:49:20,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:20,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117088233] [2021-08-21 11:49:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:20,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:21,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:21,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117088233] [2021-08-21 11:49:21,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117088233] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:21,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:21,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:21,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692024048] [2021-08-21 11:49:21,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:21,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:21,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:21,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:21,114 INFO L87 Difference]: Start difference. First operand 2759 states and 7328 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:24,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:24,623 INFO L93 Difference]: Finished difference Result 3937 states and 10404 transitions. [2021-08-21 11:49:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:49:24,623 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:24,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:24,628 INFO L225 Difference]: With dead ends: 3937 [2021-08-21 11:49:24,628 INFO L226 Difference]: Without dead ends: 3765 [2021-08-21 11:49:24,629 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 2934.9ms TimeCoverageRelationStatistics Valid=674, Invalid=3232, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:49:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3765 states. [2021-08-21 11:49:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3765 to 3019. [2021-08-21 11:49:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3019 states, 3018 states have (on average 2.6782637508283633) internal successors, (8083), 3018 states have internal predecessors, (8083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:24,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 8083 transitions. [2021-08-21 11:49:24,663 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 8083 transitions. Word has length 119 [2021-08-21 11:49:24,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:24,663 INFO L470 AbstractCegarLoop]: Abstraction has 3019 states and 8083 transitions. [2021-08-21 11:49:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 8083 transitions. [2021-08-21 11:49:24,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:24,667 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:24,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:24,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-08-21 11:49:24,667 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:24,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:24,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1349332885, now seen corresponding path program 61 times [2021-08-21 11:49:24,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:24,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907125680] [2021-08-21 11:49:24,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:24,667 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:25,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:25,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907125680] [2021-08-21 11:49:25,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907125680] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:25,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:25,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:25,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316983591] [2021-08-21 11:49:25,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:25,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:25,697 INFO L87 Difference]: Start difference. First operand 3019 states and 8083 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:29,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:29,112 INFO L93 Difference]: Finished difference Result 4555 states and 12004 transitions. [2021-08-21 11:49:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:49:29,112 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:29,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:29,118 INFO L225 Difference]: With dead ends: 4555 [2021-08-21 11:49:29,118 INFO L226 Difference]: Without dead ends: 4385 [2021-08-21 11:49:29,118 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 2779.6ms TimeCoverageRelationStatistics Valid=612, Invalid=3294, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:49:29,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4385 states. [2021-08-21 11:49:29,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4385 to 3283. [2021-08-21 11:49:29,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 3282 states have (on average 2.6755027422303472) internal successors, (8781), 3282 states have internal predecessors, (8781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 8781 transitions. [2021-08-21 11:49:29,153 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 8781 transitions. Word has length 119 [2021-08-21 11:49:29,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:29,153 INFO L470 AbstractCegarLoop]: Abstraction has 3283 states and 8781 transitions. [2021-08-21 11:49:29,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 8781 transitions. [2021-08-21 11:49:29,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:29,157 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:29,157 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:29,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-08-21 11:49:29,157 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:29,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:29,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2130825789, now seen corresponding path program 62 times [2021-08-21 11:49:29,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:29,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151292754] [2021-08-21 11:49:29,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:29,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:29,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:29,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:29,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151292754] [2021-08-21 11:49:29,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151292754] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:29,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:29,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:29,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637664369] [2021-08-21 11:49:29,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:29,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:29,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:29,903 INFO L87 Difference]: Start difference. First operand 3283 states and 8781 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:32,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:32,472 INFO L93 Difference]: Finished difference Result 4823 states and 12750 transitions. [2021-08-21 11:49:32,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:49:32,472 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:32,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:32,478 INFO L225 Difference]: With dead ends: 4823 [2021-08-21 11:49:32,478 INFO L226 Difference]: Without dead ends: 4432 [2021-08-21 11:49:32,479 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2119.2ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:49:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-08-21 11:49:32,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3343. [2021-08-21 11:49:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3343 states, 3342 states have (on average 2.6597845601436267) internal successors, (8889), 3342 states have internal predecessors, (8889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:32,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3343 states to 3343 states and 8889 transitions. [2021-08-21 11:49:32,549 INFO L78 Accepts]: Start accepts. Automaton has 3343 states and 8889 transitions. Word has length 119 [2021-08-21 11:49:32,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:32,549 INFO L470 AbstractCegarLoop]: Abstraction has 3343 states and 8889 transitions. [2021-08-21 11:49:32,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:32,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3343 states and 8889 transitions. [2021-08-21 11:49:32,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:32,552 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:32,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:32,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-08-21 11:49:32,553 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:32,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:32,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1368642039, now seen corresponding path program 63 times [2021-08-21 11:49:32,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:32,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009326513] [2021-08-21 11:49:32,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:32,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:33,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:33,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:33,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009326513] [2021-08-21 11:49:33,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009326513] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:33,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:33,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:33,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199378993] [2021-08-21 11:49:33,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:33,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:33,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:33,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:33,244 INFO L87 Difference]: Start difference. First operand 3343 states and 8889 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:35,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:35,847 INFO L93 Difference]: Finished difference Result 4538 states and 11943 transitions. [2021-08-21 11:49:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:49:35,847 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:35,853 INFO L225 Difference]: With dead ends: 4538 [2021-08-21 11:49:35,853 INFO L226 Difference]: Without dead ends: 4096 [2021-08-21 11:49:35,853 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2198.5ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:49:35,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2021-08-21 11:49:35,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3007. [2021-08-21 11:49:35,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 2.6613439787092483) internal successors, (8000), 3006 states have internal predecessors, (8000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:35,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 8000 transitions. [2021-08-21 11:49:35,885 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 8000 transitions. Word has length 119 [2021-08-21 11:49:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:35,885 INFO L470 AbstractCegarLoop]: Abstraction has 3007 states and 8000 transitions. [2021-08-21 11:49:35,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 8000 transitions. [2021-08-21 11:49:35,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:35,888 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:35,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:35,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-08-21 11:49:35,888 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:35,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:35,888 INFO L82 PathProgramCache]: Analyzing trace with hash 318791269, now seen corresponding path program 64 times [2021-08-21 11:49:35,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:35,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953058044] [2021-08-21 11:49:35,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:35,888 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:36,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:36,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:36,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953058044] [2021-08-21 11:49:36,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953058044] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:36,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:36,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:36,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131722430] [2021-08-21 11:49:36,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:36,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:36,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:36,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:36,897 INFO L87 Difference]: Start difference. First operand 3007 states and 8000 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:39,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:39,337 INFO L93 Difference]: Finished difference Result 3745 states and 9804 transitions. [2021-08-21 11:49:39,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:49:39,337 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:39,342 INFO L225 Difference]: With dead ends: 3745 [2021-08-21 11:49:39,342 INFO L226 Difference]: Without dead ends: 3531 [2021-08-21 11:49:39,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2009.0ms TimeCoverageRelationStatistics Valid=621, Invalid=3039, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:49:39,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2021-08-21 11:49:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3003. [2021-08-21 11:49:39,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 3002 states have (on average 2.659560293137908) internal successors, (7984), 3002 states have internal predecessors, (7984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 7984 transitions. [2021-08-21 11:49:39,371 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 7984 transitions. Word has length 119 [2021-08-21 11:49:39,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:39,371 INFO L470 AbstractCegarLoop]: Abstraction has 3003 states and 7984 transitions. [2021-08-21 11:49:39,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:39,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 7984 transitions. [2021-08-21 11:49:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:39,374 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:39,374 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:39,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-08-21 11:49:39,374 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:39,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:39,375 INFO L82 PathProgramCache]: Analyzing trace with hash -828831693, now seen corresponding path program 65 times [2021-08-21 11:49:39,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:39,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792315351] [2021-08-21 11:49:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:39,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:40,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:40,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:40,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792315351] [2021-08-21 11:49:40,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792315351] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:40,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:40,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:40,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055783622] [2021-08-21 11:49:40,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:40,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:40,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:40,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:40,578 INFO L87 Difference]: Start difference. First operand 3003 states and 7984 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:43,465 INFO L93 Difference]: Finished difference Result 3665 states and 9711 transitions. [2021-08-21 11:49:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:49:43,466 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:43,471 INFO L225 Difference]: With dead ends: 3665 [2021-08-21 11:49:43,471 INFO L226 Difference]: Without dead ends: 3533 [2021-08-21 11:49:43,472 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2448.6ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:49:43,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2021-08-21 11:49:43,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3003. [2021-08-21 11:49:43,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 3002 states have (on average 2.6592271818787476) internal successors, (7983), 3002 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:43,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 7983 transitions. [2021-08-21 11:49:43,503 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 7983 transitions. Word has length 119 [2021-08-21 11:49:43,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:43,503 INFO L470 AbstractCegarLoop]: Abstraction has 3003 states and 7983 transitions. [2021-08-21 11:49:43,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:43,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 7983 transitions. [2021-08-21 11:49:43,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:43,506 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:43,506 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:43,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-08-21 11:49:43,506 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:43,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:43,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1810076745, now seen corresponding path program 66 times [2021-08-21 11:49:43,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:43,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461048566] [2021-08-21 11:49:43,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:43,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:43,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:44,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:44,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:44,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461048566] [2021-08-21 11:49:44,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461048566] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:44,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:44,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:44,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96488425] [2021-08-21 11:49:44,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:44,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:44,590 INFO L87 Difference]: Start difference. First operand 3003 states and 7983 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:47,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:47,362 INFO L93 Difference]: Finished difference Result 3915 states and 10341 transitions. [2021-08-21 11:49:47,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:49:47,363 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:47,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:47,368 INFO L225 Difference]: With dead ends: 3915 [2021-08-21 11:49:47,368 INFO L226 Difference]: Without dead ends: 3785 [2021-08-21 11:49:47,368 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2274.6ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:49:47,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3785 states. [2021-08-21 11:49:47,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3785 to 3171. [2021-08-21 11:49:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3170 states have (on average 2.6501577287066245) internal successors, (8401), 3170 states have internal predecessors, (8401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 8401 transitions. [2021-08-21 11:49:47,442 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 8401 transitions. Word has length 119 [2021-08-21 11:49:47,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:47,442 INFO L470 AbstractCegarLoop]: Abstraction has 3171 states and 8401 transitions. [2021-08-21 11:49:47,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 8401 transitions. [2021-08-21 11:49:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:47,445 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:47,446 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:47,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-08-21 11:49:47,446 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1028583841, now seen corresponding path program 67 times [2021-08-21 11:49:47,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:47,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869092525] [2021-08-21 11:49:47,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:47,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:48,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:48,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869092525] [2021-08-21 11:49:48,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869092525] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:48,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:48,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:48,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064851402] [2021-08-21 11:49:48,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:48,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:48,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:48,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:48,218 INFO L87 Difference]: Start difference. First operand 3171 states and 8401 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:50,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:50,988 INFO L93 Difference]: Finished difference Result 4089 states and 10747 transitions. [2021-08-21 11:49:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:49:50,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:50,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:50,993 INFO L225 Difference]: With dead ends: 4089 [2021-08-21 11:49:50,993 INFO L226 Difference]: Without dead ends: 3838 [2021-08-21 11:49:50,996 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 486 ImplicationChecksByTransitivity, 2324.3ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:49:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3838 states. [2021-08-21 11:49:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3838 to 3207. [2021-08-21 11:49:51,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 2.639114160948222) internal successors, (8461), 3206 states have internal predecessors, (8461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:51,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 8461 transitions. [2021-08-21 11:49:51,030 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 8461 transitions. Word has length 119 [2021-08-21 11:49:51,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:51,031 INFO L470 AbstractCegarLoop]: Abstraction has 3207 states and 8461 transitions. [2021-08-21 11:49:51,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:51,031 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 8461 transitions. [2021-08-21 11:49:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:51,036 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:51,036 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:51,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-08-21 11:49:51,036 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:51,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:51,036 INFO L82 PathProgramCache]: Analyzing trace with hash -1790767591, now seen corresponding path program 68 times [2021-08-21 11:49:51,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:51,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810324166] [2021-08-21 11:49:51,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:51,037 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:51,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:51,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:51,953 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810324166] [2021-08-21 11:49:51,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810324166] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:51,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:51,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:49:51,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503387812] [2021-08-21 11:49:51,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:49:51,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:51,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:49:51,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:49:51,954 INFO L87 Difference]: Start difference. First operand 3207 states and 8461 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:54,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:54,989 INFO L93 Difference]: Finished difference Result 3920 states and 10290 transitions. [2021-08-21 11:49:54,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:49:54,990 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:54,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:54,995 INFO L225 Difference]: With dead ends: 3920 [2021-08-21 11:49:54,995 INFO L226 Difference]: Without dead ends: 3622 [2021-08-21 11:49:54,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 2517.9ms TimeCoverageRelationStatistics Valid=516, Invalid=2676, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:49:54,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3622 states. [2021-08-21 11:49:55,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3622 to 2991. [2021-08-21 11:49:55,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2990 states have (on average 2.6581939799331105) internal successors, (7948), 2990 states have internal predecessors, (7948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 7948 transitions. [2021-08-21 11:49:55,034 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 7948 transitions. Word has length 119 [2021-08-21 11:49:55,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:55,034 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 7948 transitions. [2021-08-21 11:49:55,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 7948 transitions. [2021-08-21 11:49:55,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:55,037 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:55,037 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:55,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-08-21 11:49:55,037 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:55,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:55,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1230507065, now seen corresponding path program 69 times [2021-08-21 11:49:55,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:55,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057441053] [2021-08-21 11:49:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:55,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:56,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:56,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057441053] [2021-08-21 11:49:56,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057441053] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:56,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:56,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:56,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115522879] [2021-08-21 11:49:56,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:56,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:56,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:56,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:56,135 INFO L87 Difference]: Start difference. First operand 2991 states and 7948 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:58,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:49:58,594 INFO L93 Difference]: Finished difference Result 3703 states and 9790 transitions. [2021-08-21 11:49:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:49:58,594 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:49:58,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:49:58,600 INFO L225 Difference]: With dead ends: 3703 [2021-08-21 11:49:58,600 INFO L226 Difference]: Without dead ends: 3571 [2021-08-21 11:49:58,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 2073.6ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:49:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2021-08-21 11:49:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 2993. [2021-08-21 11:49:58,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2992 states have (on average 2.6574197860962565) internal successors, (7951), 2992 states have internal predecessors, (7951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:58,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 7951 transitions. [2021-08-21 11:49:58,632 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 7951 transitions. Word has length 119 [2021-08-21 11:49:58,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:49:58,632 INFO L470 AbstractCegarLoop]: Abstraction has 2993 states and 7951 transitions. [2021-08-21 11:49:58,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:49:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 7951 transitions. [2021-08-21 11:49:58,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:49:58,635 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:49:58,636 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:49:58,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-08-21 11:49:58,636 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:49:58,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:49:58,637 INFO L82 PathProgramCache]: Analyzing trace with hash 749344739, now seen corresponding path program 70 times [2021-08-21 11:49:58,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:49:58,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849175210] [2021-08-21 11:49:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:49:58,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:49:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:49:59,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:49:59,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:49:59,514 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849175210] [2021-08-21 11:49:59,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849175210] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:49:59,514 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:49:59,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:49:59,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911885958] [2021-08-21 11:49:59,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:49:59,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:49:59,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:49:59,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:49:59,515 INFO L87 Difference]: Start difference. First operand 2993 states and 7951 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:01,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:01,939 INFO L93 Difference]: Finished difference Result 3882 states and 10148 transitions. [2021-08-21 11:50:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:50:01,939 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:01,945 INFO L225 Difference]: With dead ends: 3882 [2021-08-21 11:50:01,945 INFO L226 Difference]: Without dead ends: 3735 [2021-08-21 11:50:01,945 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 1926.8ms TimeCoverageRelationStatistics Valid=577, Invalid=2963, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:50:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3735 states. [2021-08-21 11:50:01,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3735 to 2991. [2021-08-21 11:50:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2991 states, 2990 states have (on average 2.657859531772575) internal successors, (7947), 2990 states have internal predecessors, (7947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2991 states to 2991 states and 7947 transitions. [2021-08-21 11:50:01,982 INFO L78 Accepts]: Start accepts. Automaton has 2991 states and 7947 transitions. Word has length 119 [2021-08-21 11:50:01,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:01,982 INFO L470 AbstractCegarLoop]: Abstraction has 2991 states and 7947 transitions. [2021-08-21 11:50:01,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:01,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2991 states and 7947 transitions. [2021-08-21 11:50:01,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:01,985 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:01,985 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:01,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-08-21 11:50:01,985 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:01,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash 395519199, now seen corresponding path program 71 times [2021-08-21 11:50:01,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:01,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76431327] [2021-08-21 11:50:01,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:01,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:02,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:02,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:02,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76431327] [2021-08-21 11:50:02,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76431327] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:02,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:02,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:02,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639701112] [2021-08-21 11:50:02,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:02,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:02,923 INFO L87 Difference]: Start difference. First operand 2991 states and 7947 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:05,387 INFO L93 Difference]: Finished difference Result 4519 states and 11818 transitions. [2021-08-21 11:50:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:50:05,388 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:05,393 INFO L225 Difference]: With dead ends: 4519 [2021-08-21 11:50:05,393 INFO L226 Difference]: Without dead ends: 4374 [2021-08-21 11:50:05,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 611 ImplicationChecksByTransitivity, 1989.8ms TimeCoverageRelationStatistics Valid=536, Invalid=3004, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:50:05,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4374 states. [2021-08-21 11:50:05,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4374 to 3027. [2021-08-21 11:50:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 3026 states have (on average 2.6563119629874423) internal successors, (8038), 3026 states have internal predecessors, (8038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:05,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 8038 transitions. [2021-08-21 11:50:05,429 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 8038 transitions. Word has length 119 [2021-08-21 11:50:05,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:05,429 INFO L470 AbstractCegarLoop]: Abstraction has 3027 states and 8038 transitions. [2021-08-21 11:50:05,429 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 8038 transitions. [2021-08-21 11:50:05,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:05,432 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:05,432 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:05,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-08-21 11:50:05,432 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:05,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:05,432 INFO L82 PathProgramCache]: Analyzing trace with hash 483525859, now seen corresponding path program 72 times [2021-08-21 11:50:05,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:05,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769913661] [2021-08-21 11:50:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:05,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:06,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:06,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:06,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769913661] [2021-08-21 11:50:06,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769913661] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:06,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:06,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:06,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346160490] [2021-08-21 11:50:06,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:06,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:06,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:06,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:06,339 INFO L87 Difference]: Start difference. First operand 3027 states and 8038 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:08,725 INFO L93 Difference]: Finished difference Result 4562 states and 12030 transitions. [2021-08-21 11:50:08,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:50:08,726 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:08,732 INFO L225 Difference]: With dead ends: 4562 [2021-08-21 11:50:08,732 INFO L226 Difference]: Without dead ends: 4432 [2021-08-21 11:50:08,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1962.2ms TimeCoverageRelationStatistics Valid=493, Invalid=2699, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:50:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4432 states. [2021-08-21 11:50:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4432 to 3171. [2021-08-21 11:50:08,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3171 states, 3170 states have (on average 2.652365930599369) internal successors, (8408), 3170 states have internal predecessors, (8408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:08,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3171 states to 3171 states and 8408 transitions. [2021-08-21 11:50:08,773 INFO L78 Accepts]: Start accepts. Automaton has 3171 states and 8408 transitions. Word has length 119 [2021-08-21 11:50:08,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:08,773 INFO L470 AbstractCegarLoop]: Abstraction has 3171 states and 8408 transitions. [2021-08-21 11:50:08,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:08,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3171 states and 8408 transitions. [2021-08-21 11:50:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:08,776 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:08,777 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:08,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-08-21 11:50:08,777 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:08,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:08,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1265018763, now seen corresponding path program 73 times [2021-08-21 11:50:08,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:08,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347412739] [2021-08-21 11:50:08,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:08,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:09,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:09,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:09,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347412739] [2021-08-21 11:50:09,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347412739] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:09,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:09,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:09,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571349535] [2021-08-21 11:50:09,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:09,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:09,715 INFO L87 Difference]: Start difference. First operand 3171 states and 8408 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:12,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:12,830 INFO L93 Difference]: Finished difference Result 4736 states and 12436 transitions. [2021-08-21 11:50:12,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:50:12,831 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:12,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:12,838 INFO L225 Difference]: With dead ends: 4736 [2021-08-21 11:50:12,838 INFO L226 Difference]: Without dead ends: 4485 [2021-08-21 11:50:12,839 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 2544.9ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:50:12,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2021-08-21 11:50:12,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 3207. [2021-08-21 11:50:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3207 states, 3206 states have (on average 2.641297567061759) internal successors, (8468), 3206 states have internal predecessors, (8468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:12,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 8468 transitions. [2021-08-21 11:50:12,889 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 8468 transitions. Word has length 119 [2021-08-21 11:50:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:12,889 INFO L470 AbstractCegarLoop]: Abstraction has 3207 states and 8468 transitions. [2021-08-21 11:50:12,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:12,889 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 8468 transitions. [2021-08-21 11:50:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:12,893 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:12,893 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:12,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-08-21 11:50:12,893 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:12,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:12,894 INFO L82 PathProgramCache]: Analyzing trace with hash 502835013, now seen corresponding path program 74 times [2021-08-21 11:50:12,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:12,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141855387] [2021-08-21 11:50:12,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:12,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:13,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:13,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141855387] [2021-08-21 11:50:13,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141855387] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:13,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:13,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:13,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343093120] [2021-08-21 11:50:13,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:13,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:13,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:13,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:13,923 INFO L87 Difference]: Start difference. First operand 3207 states and 8468 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:16,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:16,875 INFO L93 Difference]: Finished difference Result 4567 states and 11979 transitions. [2021-08-21 11:50:16,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:50:16,876 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:16,880 INFO L225 Difference]: With dead ends: 4567 [2021-08-21 11:50:16,881 INFO L226 Difference]: Without dead ends: 4209 [2021-08-21 11:50:16,881 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2542.5ms TimeCoverageRelationStatistics Valid=505, Invalid=2687, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:50:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-08-21 11:50:16,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 2931. [2021-08-21 11:50:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 2930 states have (on average 2.6593856655290105) internal successors, (7792), 2930 states have internal predecessors, (7792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:16,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 7792 transitions. [2021-08-21 11:50:16,911 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 7792 transitions. Word has length 119 [2021-08-21 11:50:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:16,911 INFO L470 AbstractCegarLoop]: Abstraction has 2931 states and 7792 transitions. [2021-08-21 11:50:16,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:16,911 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 7792 transitions. [2021-08-21 11:50:16,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:16,914 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:16,914 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:16,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-08-21 11:50:16,914 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:16,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:16,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1322231601, now seen corresponding path program 75 times [2021-08-21 11:50:16,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:16,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311539490] [2021-08-21 11:50:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:16,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:16,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:17,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:17,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:17,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311539490] [2021-08-21 11:50:17,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311539490] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:17,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:17,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:17,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854117122] [2021-08-21 11:50:17,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:17,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:17,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:17,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:17,905 INFO L87 Difference]: Start difference. First operand 2931 states and 7792 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:20,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:20,375 INFO L93 Difference]: Finished difference Result 3597 states and 9386 transitions. [2021-08-21 11:50:20,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:50:20,376 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:20,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:20,381 INFO L225 Difference]: With dead ends: 3597 [2021-08-21 11:50:20,381 INFO L226 Difference]: Without dead ends: 3419 [2021-08-21 11:50:20,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2173.6ms TimeCoverageRelationStatistics Valid=621, Invalid=3039, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:50:20,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2021-08-21 11:50:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2939. [2021-08-21 11:50:20,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2939 states, 2938 states have (on average 2.656909462219197) internal successors, (7806), 2938 states have internal predecessors, (7806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:20,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2939 states to 2939 states and 7806 transitions. [2021-08-21 11:50:20,412 INFO L78 Accepts]: Start accepts. Automaton has 2939 states and 7806 transitions. Word has length 119 [2021-08-21 11:50:20,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:20,412 INFO L470 AbstractCegarLoop]: Abstraction has 2939 states and 7806 transitions. [2021-08-21 11:50:20,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 2939 states and 7806 transitions. [2021-08-21 11:50:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:20,415 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:20,415 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:20,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-08-21 11:50:20,415 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:20,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:20,415 INFO L82 PathProgramCache]: Analyzing trace with hash 828615667, now seen corresponding path program 76 times [2021-08-21 11:50:20,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:20,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453243378] [2021-08-21 11:50:20,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:20,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:21,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:21,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:21,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453243378] [2021-08-21 11:50:21,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453243378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:21,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:21,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:21,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100381977] [2021-08-21 11:50:21,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:21,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:21,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:21,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:21,289 INFO L87 Difference]: Start difference. First operand 2939 states and 7806 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:23,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:23,576 INFO L93 Difference]: Finished difference Result 3423 states and 9016 transitions. [2021-08-21 11:50:23,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:50:23,577 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:23,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:23,581 INFO L225 Difference]: With dead ends: 3423 [2021-08-21 11:50:23,581 INFO L226 Difference]: Without dead ends: 3291 [2021-08-21 11:50:23,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 1850.2ms TimeCoverageRelationStatistics Valid=501, Invalid=2579, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:50:23,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3291 states. [2021-08-21 11:50:23,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3291 to 2941. [2021-08-21 11:50:23,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2940 states have (on average 2.656122448979592) internal successors, (7809), 2940 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 7809 transitions. [2021-08-21 11:50:23,611 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 7809 transitions. Word has length 119 [2021-08-21 11:50:23,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:23,611 INFO L470 AbstractCegarLoop]: Abstraction has 2941 states and 7809 transitions. [2021-08-21 11:50:23,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:23,611 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 7809 transitions. [2021-08-21 11:50:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:23,614 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:23,614 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:23,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-08-21 11:50:23,614 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:23,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1486499825, now seen corresponding path program 77 times [2021-08-21 11:50:23,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:23,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140265247] [2021-08-21 11:50:23,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:23,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:24,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:24,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:24,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140265247] [2021-08-21 11:50:24,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140265247] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:24,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:24,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:24,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110617350] [2021-08-21 11:50:24,650 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:24,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:24,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:24,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:24,651 INFO L87 Difference]: Start difference. First operand 2941 states and 7809 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:27,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:27,522 INFO L93 Difference]: Finished difference Result 3590 states and 9344 transitions. [2021-08-21 11:50:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:50:27,523 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:27,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:27,527 INFO L225 Difference]: With dead ends: 3590 [2021-08-21 11:50:27,528 INFO L226 Difference]: Without dead ends: 3401 [2021-08-21 11:50:27,528 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 2378.1ms TimeCoverageRelationStatistics Valid=554, Invalid=2868, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:50:27,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3401 states. [2021-08-21 11:50:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3401 to 2897. [2021-08-21 11:50:27,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2896 states have (on average 2.666781767955801) internal successors, (7723), 2896 states have internal predecessors, (7723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:27,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 7723 transitions. [2021-08-21 11:50:27,559 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 7723 transitions. Word has length 119 [2021-08-21 11:50:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:27,559 INFO L470 AbstractCegarLoop]: Abstraction has 2897 states and 7723 transitions. [2021-08-21 11:50:27,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 7723 transitions. [2021-08-21 11:50:27,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:27,562 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:27,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:27,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-08-21 11:50:27,562 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:27,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1202740931, now seen corresponding path program 78 times [2021-08-21 11:50:27,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:27,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755726375] [2021-08-21 11:50:27,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:27,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:27,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:27,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:27,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:27,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755726375] [2021-08-21 11:50:27,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755726375] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:27,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:27,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:50:27,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198806798] [2021-08-21 11:50:27,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:50:27,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:27,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:50:27,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:50:27,849 INFO L87 Difference]: Start difference. First operand 2897 states and 7723 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:28,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:28,330 INFO L93 Difference]: Finished difference Result 5145 states and 13291 transitions. [2021-08-21 11:50:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:50:28,331 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:28,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:28,338 INFO L225 Difference]: With dead ends: 5145 [2021-08-21 11:50:28,338 INFO L226 Difference]: Without dead ends: 5089 [2021-08-21 11:50:28,338 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 341.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:28,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5089 states. [2021-08-21 11:50:28,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5089 to 2701. [2021-08-21 11:50:28,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.638888888888889) internal successors, (7125), 2700 states have internal predecessors, (7125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:28,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 7125 transitions. [2021-08-21 11:50:28,399 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 7125 transitions. Word has length 119 [2021-08-21 11:50:28,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:28,399 INFO L470 AbstractCegarLoop]: Abstraction has 2701 states and 7125 transitions. [2021-08-21 11:50:28,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:28,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 7125 transitions. [2021-08-21 11:50:28,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:28,401 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:28,401 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:28,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-08-21 11:50:28,402 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:28,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:28,402 INFO L82 PathProgramCache]: Analyzing trace with hash -677062175, now seen corresponding path program 79 times [2021-08-21 11:50:28,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:28,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121085977] [2021-08-21 11:50:28,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:28,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:28,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:29,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:29,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121085977] [2021-08-21 11:50:29,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121085977] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:29,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:29,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:29,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499785228] [2021-08-21 11:50:29,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:29,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:29,324 INFO L87 Difference]: Start difference. First operand 2701 states and 7125 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:31,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:31,391 INFO L93 Difference]: Finished difference Result 3088 states and 8106 transitions. [2021-08-21 11:50:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:50:31,391 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:31,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:31,397 INFO L225 Difference]: With dead ends: 3088 [2021-08-21 11:50:31,397 INFO L226 Difference]: Without dead ends: 2983 [2021-08-21 11:50:31,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1826.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:50:31,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2983 states. [2021-08-21 11:50:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2983 to 2701. [2021-08-21 11:50:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 2700 states have (on average 2.6374074074074074) internal successors, (7121), 2700 states have internal predecessors, (7121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:31,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 7121 transitions. [2021-08-21 11:50:31,424 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 7121 transitions. Word has length 119 [2021-08-21 11:50:31,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:31,424 INFO L470 AbstractCegarLoop]: Abstraction has 2701 states and 7121 transitions. [2021-08-21 11:50:31,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 7121 transitions. [2021-08-21 11:50:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:31,426 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:31,426 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:31,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-08-21 11:50:31,426 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:31,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:31,427 INFO L82 PathProgramCache]: Analyzing trace with hash 977629413, now seen corresponding path program 80 times [2021-08-21 11:50:31,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:31,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915347866] [2021-08-21 11:50:31,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:31,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:32,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:32,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:32,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915347866] [2021-08-21 11:50:32,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915347866] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:32,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:32,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:32,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646075578] [2021-08-21 11:50:32,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:32,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:32,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:32,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:32,247 INFO L87 Difference]: Start difference. First operand 2701 states and 7121 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:34,819 INFO L93 Difference]: Finished difference Result 3296 states and 8648 transitions. [2021-08-21 11:50:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:50:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:34,825 INFO L225 Difference]: With dead ends: 3296 [2021-08-21 11:50:34,825 INFO L226 Difference]: Without dead ends: 3201 [2021-08-21 11:50:34,825 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 2098.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2493, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:50:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2021-08-21 11:50:34,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 2845. [2021-08-21 11:50:34,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2845 states, 2844 states have (on average 2.6339662447257384) internal successors, (7491), 2844 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2845 states to 2845 states and 7491 transitions. [2021-08-21 11:50:34,854 INFO L78 Accepts]: Start accepts. Automaton has 2845 states and 7491 transitions. Word has length 119 [2021-08-21 11:50:34,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:34,854 INFO L470 AbstractCegarLoop]: Abstraction has 2845 states and 7491 transitions. [2021-08-21 11:50:34,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:34,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2845 states and 7491 transitions. [2021-08-21 11:50:34,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:34,856 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:34,856 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:34,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-08-21 11:50:34,857 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:34,857 INFO L82 PathProgramCache]: Analyzing trace with hash -806733467, now seen corresponding path program 81 times [2021-08-21 11:50:34,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:34,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661003768] [2021-08-21 11:50:34,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:34,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:35,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:35,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:35,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661003768] [2021-08-21 11:50:35,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661003768] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:35,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:35,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:35,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693879682] [2021-08-21 11:50:35,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:35,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:35,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:35,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:35,804 INFO L87 Difference]: Start difference. First operand 2845 states and 7491 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:38,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:38,174 INFO L93 Difference]: Finished difference Result 3519 states and 9151 transitions. [2021-08-21 11:50:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:50:38,174 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:38,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:38,178 INFO L225 Difference]: With dead ends: 3519 [2021-08-21 11:50:38,179 INFO L226 Difference]: Without dead ends: 3024 [2021-08-21 11:50:38,179 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2121.0ms TimeCoverageRelationStatistics Valid=498, Invalid=2582, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:50:38,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2021-08-21 11:50:38,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 2677. [2021-08-21 11:50:38,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2677 states, 2676 states have (on average 2.63863976083707) internal successors, (7061), 2676 states have internal predecessors, (7061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2677 states to 2677 states and 7061 transitions. [2021-08-21 11:50:38,206 INFO L78 Accepts]: Start accepts. Automaton has 2677 states and 7061 transitions. Word has length 119 [2021-08-21 11:50:38,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:38,206 INFO L470 AbstractCegarLoop]: Abstraction has 2677 states and 7061 transitions. [2021-08-21 11:50:38,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:38,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2677 states and 7061 transitions. [2021-08-21 11:50:38,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:38,208 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:38,208 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:38,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-08-21 11:50:38,209 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:38,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:38,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1608417899, now seen corresponding path program 82 times [2021-08-21 11:50:38,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:38,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323853922] [2021-08-21 11:50:38,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:38,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:39,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:39,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:39,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323853922] [2021-08-21 11:50:39,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323853922] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:39,394 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:39,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:39,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402347030] [2021-08-21 11:50:39,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:39,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:39,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:39,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:39,395 INFO L87 Difference]: Start difference. First operand 2677 states and 7061 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:42,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:42,037 INFO L93 Difference]: Finished difference Result 3056 states and 8030 transitions. [2021-08-21 11:50:42,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:50:42,037 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:42,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:42,041 INFO L225 Difference]: With dead ends: 3056 [2021-08-21 11:50:42,041 INFO L226 Difference]: Without dead ends: 2899 [2021-08-21 11:50:42,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 2402.5ms TimeCoverageRelationStatistics Valid=484, Invalid=2486, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:50:42,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2021-08-21 11:50:42,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2617. [2021-08-21 11:50:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2616 states have (on average 2.654816513761468) internal successors, (6945), 2616 states have internal predecessors, (6945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:42,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 6945 transitions. [2021-08-21 11:50:42,066 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 6945 transitions. Word has length 119 [2021-08-21 11:50:42,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:42,067 INFO L470 AbstractCegarLoop]: Abstraction has 2617 states and 6945 transitions. [2021-08-21 11:50:42,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:42,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 6945 transitions. [2021-08-21 11:50:42,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:42,069 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:42,069 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:42,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-08-21 11:50:42,069 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:42,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:42,069 INFO L82 PathProgramCache]: Analyzing trace with hash 347361461, now seen corresponding path program 83 times [2021-08-21 11:50:42,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:42,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633249709] [2021-08-21 11:50:42,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:42,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:43,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:43,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633249709] [2021-08-21 11:50:43,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633249709] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:43,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:43,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:43,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988972381] [2021-08-21 11:50:43,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:43,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:43,040 INFO L87 Difference]: Start difference. First operand 2617 states and 6945 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:45,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:45,609 INFO L93 Difference]: Finished difference Result 3026 states and 7989 transitions. [2021-08-21 11:50:45,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:50:45,610 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:45,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:45,614 INFO L225 Difference]: With dead ends: 3026 [2021-08-21 11:50:45,624 INFO L226 Difference]: Without dead ends: 2907 [2021-08-21 11:50:45,625 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2237.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:50:45,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2021-08-21 11:50:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 2601. [2021-08-21 11:50:45,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 2600 states have (on average 2.6596153846153845) internal successors, (6915), 2600 states have internal predecessors, (6915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 6915 transitions. [2021-08-21 11:50:45,675 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 6915 transitions. Word has length 119 [2021-08-21 11:50:45,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:45,676 INFO L470 AbstractCegarLoop]: Abstraction has 2601 states and 6915 transitions. [2021-08-21 11:50:45,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:45,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 6915 transitions. [2021-08-21 11:50:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:45,678 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:45,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:45,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-08-21 11:50:45,678 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:45,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:45,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1722544609, now seen corresponding path program 84 times [2021-08-21 11:50:45,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:45,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044811315] [2021-08-21 11:50:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:45,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:45,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:46,083 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:46,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044811315] [2021-08-21 11:50:46,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044811315] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:46,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:46,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:50:46,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366721562] [2021-08-21 11:50:46,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:50:46,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:46,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:50:46,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:50:46,085 INFO L87 Difference]: Start difference. First operand 2601 states and 6915 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:46,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:46,628 INFO L93 Difference]: Finished difference Result 5008 states and 13041 transitions. [2021-08-21 11:50:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:50:46,628 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:46,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:46,636 INFO L225 Difference]: With dead ends: 5008 [2021-08-21 11:50:46,636 INFO L226 Difference]: Without dead ends: 5008 [2021-08-21 11:50:46,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 416.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:46,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5008 states. [2021-08-21 11:50:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5008 to 2771. [2021-08-21 11:50:46,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2771 states, 2770 states have (on average 2.628158844765343) internal successors, (7280), 2770 states have internal predecessors, (7280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:46,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2771 states to 2771 states and 7280 transitions. [2021-08-21 11:50:46,680 INFO L78 Accepts]: Start accepts. Automaton has 2771 states and 7280 transitions. Word has length 119 [2021-08-21 11:50:46,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:46,680 INFO L470 AbstractCegarLoop]: Abstraction has 2771 states and 7280 transitions. [2021-08-21 11:50:46,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2771 states and 7280 transitions. [2021-08-21 11:50:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:46,683 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:46,683 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:46,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-08-21 11:50:46,683 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:46,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:46,683 INFO L82 PathProgramCache]: Analyzing trace with hash 377211957, now seen corresponding path program 85 times [2021-08-21 11:50:46,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:46,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584878598] [2021-08-21 11:50:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:46,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:46,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:47,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:47,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584878598] [2021-08-21 11:50:47,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584878598] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:47,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:47,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:47,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510680436] [2021-08-21 11:50:47,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:47,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:47,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:47,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:47,777 INFO L87 Difference]: Start difference. First operand 2771 states and 7280 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:51,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:51,410 INFO L93 Difference]: Finished difference Result 3637 states and 9462 transitions. [2021-08-21 11:50:51,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:50:51,410 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:51,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:51,415 INFO L225 Difference]: With dead ends: 3637 [2021-08-21 11:50:51,415 INFO L226 Difference]: Without dead ends: 3469 [2021-08-21 11:50:51,416 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 3078.7ms TimeCoverageRelationStatistics Valid=674, Invalid=3232, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:50:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3469 states. [2021-08-21 11:50:51,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3469 to 2993. [2021-08-21 11:50:51,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2993 states, 2992 states have (on average 2.6524064171122994) internal successors, (7936), 2992 states have internal predecessors, (7936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2993 states to 2993 states and 7936 transitions. [2021-08-21 11:50:51,452 INFO L78 Accepts]: Start accepts. Automaton has 2993 states and 7936 transitions. Word has length 119 [2021-08-21 11:50:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:51,452 INFO L470 AbstractCegarLoop]: Abstraction has 2993 states and 7936 transitions. [2021-08-21 11:50:51,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2993 states and 7936 transitions. [2021-08-21 11:50:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:51,455 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:51,455 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:51,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-08-21 11:50:51,456 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:51,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:51,456 INFO L82 PathProgramCache]: Analyzing trace with hash -604033095, now seen corresponding path program 86 times [2021-08-21 11:50:51,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:51,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079273046] [2021-08-21 11:50:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:51,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:52,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:52,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079273046] [2021-08-21 11:50:52,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079273046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:52,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:52,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:50:52,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511909906] [2021-08-21 11:50:52,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:50:52,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:52,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:50:52,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:50:52,435 INFO L87 Difference]: Start difference. First operand 2993 states and 7936 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:55,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:55,637 INFO L93 Difference]: Finished difference Result 4231 states and 11004 transitions. [2021-08-21 11:50:55,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:50:55,638 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:55,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:55,643 INFO L225 Difference]: With dead ends: 4231 [2021-08-21 11:50:55,643 INFO L226 Difference]: Without dead ends: 4065 [2021-08-21 11:50:55,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 2652.0ms TimeCoverageRelationStatistics Valid=612, Invalid=3294, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:50:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2021-08-21 11:50:55,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 3209. [2021-08-21 11:50:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3209 states, 3208 states have (on average 2.6546134663341645) internal successors, (8516), 3208 states have internal predecessors, (8516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3209 states to 3209 states and 8516 transitions. [2021-08-21 11:50:55,679 INFO L78 Accepts]: Start accepts. Automaton has 3209 states and 8516 transitions. Word has length 119 [2021-08-21 11:50:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:55,679 INFO L470 AbstractCegarLoop]: Abstraction has 3209 states and 8516 transitions. [2021-08-21 11:50:55,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3209 states and 8516 transitions. [2021-08-21 11:50:55,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:55,682 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:55,682 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:55,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-08-21 11:50:55,683 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:55,683 INFO L82 PathProgramCache]: Analyzing trace with hash 177459809, now seen corresponding path program 87 times [2021-08-21 11:50:55,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:55,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315742466] [2021-08-21 11:50:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:55,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:50:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:50:56,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:50:56,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315742466] [2021-08-21 11:50:56,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315742466] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:50:56,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:50:56,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:50:56,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818618681] [2021-08-21 11:50:56,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:50:56,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:50:56,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:50:56,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:50:56,571 INFO L87 Difference]: Start difference. First operand 3209 states and 8516 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:59,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:50:59,604 INFO L93 Difference]: Finished difference Result 4503 states and 11762 transitions. [2021-08-21 11:50:59,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:50:59,604 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:50:59,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:50:59,609 INFO L225 Difference]: With dead ends: 4503 [2021-08-21 11:50:59,609 INFO L226 Difference]: Without dead ends: 4112 [2021-08-21 11:50:59,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2535.5ms TimeCoverageRelationStatistics Valid=614, Invalid=2926, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:50:59,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4112 states. [2021-08-21 11:50:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4112 to 3269. [2021-08-21 11:50:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 3268 states have (on average 2.638922888616891) internal successors, (8624), 3268 states have internal predecessors, (8624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:59,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 8624 transitions. [2021-08-21 11:50:59,646 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 8624 transitions. Word has length 119 [2021-08-21 11:50:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:50:59,646 INFO L470 AbstractCegarLoop]: Abstraction has 3269 states and 8624 transitions. [2021-08-21 11:50:59,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:50:59,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 8624 transitions. [2021-08-21 11:50:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:50:59,650 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:50:59,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:50:59,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-08-21 11:50:59,651 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:50:59,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:50:59,651 INFO L82 PathProgramCache]: Analyzing trace with hash -584723941, now seen corresponding path program 88 times [2021-08-21 11:50:59,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:50:59,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247608297] [2021-08-21 11:50:59,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:50:59,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:50:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:00,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:00,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:00,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247608297] [2021-08-21 11:51:00,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247608297] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:00,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:00,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:00,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651618999] [2021-08-21 11:51:00,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:00,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:00,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:00,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:00,422 INFO L87 Difference]: Start difference. First operand 3269 states and 8624 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:03,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:03,598 INFO L93 Difference]: Finished difference Result 4218 states and 10955 transitions. [2021-08-21 11:51:03,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:51:03,599 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:03,604 INFO L225 Difference]: With dead ends: 4218 [2021-08-21 11:51:03,604 INFO L226 Difference]: Without dead ends: 3800 [2021-08-21 11:51:03,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 2703.9ms TimeCoverageRelationStatistics Valid=635, Invalid=3147, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:51:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3800 states. [2021-08-21 11:51:03,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3800 to 2957. [2021-08-21 11:51:03,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2957 states, 2956 states have (on average 2.644451962110961) internal successors, (7817), 2956 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2957 states to 2957 states and 7817 transitions. [2021-08-21 11:51:03,648 INFO L78 Accepts]: Start accepts. Automaton has 2957 states and 7817 transitions. Word has length 119 [2021-08-21 11:51:03,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:03,648 INFO L470 AbstractCegarLoop]: Abstraction has 2957 states and 7817 transitions. [2021-08-21 11:51:03,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:03,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2957 states and 7817 transitions. [2021-08-21 11:51:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:03,684 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:03,685 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:03,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-08-21 11:51:03,685 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:03,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1634574711, now seen corresponding path program 89 times [2021-08-21 11:51:03,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:03,685 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717230039] [2021-08-21 11:51:03,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:03,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:04,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:04,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717230039] [2021-08-21 11:51:04,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717230039] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:04,480 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:04,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:04,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042734253] [2021-08-21 11:51:04,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:04,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:04,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:04,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:04,481 INFO L87 Difference]: Start difference. First operand 2957 states and 7817 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:06,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:06,904 INFO L93 Difference]: Finished difference Result 3449 states and 8890 transitions. [2021-08-21 11:51:06,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:51:06,904 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:06,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:06,908 INFO L225 Difference]: With dead ends: 3449 [2021-08-21 11:51:06,908 INFO L226 Difference]: Without dead ends: 3239 [2021-08-21 11:51:06,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 1985.6ms TimeCoverageRelationStatistics Valid=621, Invalid=3039, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:51:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2021-08-21 11:51:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 2947. [2021-08-21 11:51:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2947 states, 2946 states have (on average 2.6503733876442634) internal successors, (7808), 2946 states have internal predecessors, (7808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:06,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2947 states to 2947 states and 7808 transitions. [2021-08-21 11:51:06,952 INFO L78 Accepts]: Start accepts. Automaton has 2947 states and 7808 transitions. Word has length 119 [2021-08-21 11:51:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:06,952 INFO L470 AbstractCegarLoop]: Abstraction has 2947 states and 7808 transitions. [2021-08-21 11:51:06,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2947 states and 7808 transitions. [2021-08-21 11:51:06,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:06,955 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:06,955 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:06,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-08-21 11:51:06,957 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:06,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:06,957 INFO L82 PathProgramCache]: Analyzing trace with hash -5657305, now seen corresponding path program 90 times [2021-08-21 11:51:06,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:06,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971177388] [2021-08-21 11:51:06,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:06,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:06,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:07,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:07,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971177388] [2021-08-21 11:51:07,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971177388] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:07,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:07,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:07,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311594603] [2021-08-21 11:51:07,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:07,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:07,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:07,665 INFO L87 Difference]: Start difference. First operand 2947 states and 7808 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:10,722 INFO L93 Difference]: Finished difference Result 3393 states and 8782 transitions. [2021-08-21 11:51:10,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:51:10,722 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:10,726 INFO L225 Difference]: With dead ends: 3393 [2021-08-21 11:51:10,727 INFO L226 Difference]: Without dead ends: 3238 [2021-08-21 11:51:10,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 2475.9ms TimeCoverageRelationStatistics Valid=597, Invalid=2825, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:51:10,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2021-08-21 11:51:10,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 2953. [2021-08-21 11:51:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2953 states, 2952 states have (on average 2.646680216802168) internal successors, (7813), 2952 states have internal predecessors, (7813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2953 states to 2953 states and 7813 transitions. [2021-08-21 11:51:10,770 INFO L78 Accepts]: Start accepts. Automaton has 2953 states and 7813 transitions. Word has length 119 [2021-08-21 11:51:10,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:10,770 INFO L470 AbstractCegarLoop]: Abstraction has 2953 states and 7813 transitions. [2021-08-21 11:51:10,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:10,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2953 states and 7813 transitions. [2021-08-21 11:51:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:10,773 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:10,773 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:10,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-08-21 11:51:10,773 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:10,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:10,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1649034283, now seen corresponding path program 91 times [2021-08-21 11:51:10,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:10,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903338894] [2021-08-21 11:51:10,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:10,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:11,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:11,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903338894] [2021-08-21 11:51:11,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903338894] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:11,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:11,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:11,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582632771] [2021-08-21 11:51:11,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:11,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:11,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:11,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:11,805 INFO L87 Difference]: Start difference. First operand 2953 states and 7813 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:14,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:14,949 INFO L93 Difference]: Finished difference Result 4289 states and 11156 transitions. [2021-08-21 11:51:14,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:51:14,950 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:14,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:14,955 INFO L225 Difference]: With dead ends: 4289 [2021-08-21 11:51:14,955 INFO L226 Difference]: Without dead ends: 4144 [2021-08-21 11:51:14,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 2551.7ms TimeCoverageRelationStatistics Valid=597, Invalid=3185, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:51:14,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2021-08-21 11:51:14,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 3241. [2021-08-21 11:51:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3241 states, 3240 states have (on average 2.6564814814814817) internal successors, (8607), 3240 states have internal predecessors, (8607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 8607 transitions. [2021-08-21 11:51:14,992 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 8607 transitions. Word has length 119 [2021-08-21 11:51:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:14,992 INFO L470 AbstractCegarLoop]: Abstraction has 3241 states and 8607 transitions. [2021-08-21 11:51:14,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 8607 transitions. [2021-08-21 11:51:14,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:14,995 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:14,995 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:14,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-08-21 11:51:14,995 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:14,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:14,996 INFO L82 PathProgramCache]: Analyzing trace with hash -135328597, now seen corresponding path program 92 times [2021-08-21 11:51:14,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:14,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678806373] [2021-08-21 11:51:14,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:14,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:15,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:15,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678806373] [2021-08-21 11:51:15,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678806373] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:15,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:15,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:15,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342246408] [2021-08-21 11:51:15,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:15,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:15,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:15,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:15,879 INFO L87 Difference]: Start difference. First operand 3241 states and 8607 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:19,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:19,450 INFO L93 Difference]: Finished difference Result 4624 states and 12040 transitions. [2021-08-21 11:51:19,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:51:19,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:19,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:19,455 INFO L225 Difference]: With dead ends: 4624 [2021-08-21 11:51:19,455 INFO L226 Difference]: Without dead ends: 3842 [2021-08-21 11:51:19,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 680 ImplicationChecksByTransitivity, 2956.9ms TimeCoverageRelationStatistics Valid=651, Invalid=3255, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:51:19,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2021-08-21 11:51:19,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 2977. [2021-08-21 11:51:19,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2977 states, 2976 states have (on average 2.6374327956989245) internal successors, (7849), 2976 states have internal predecessors, (7849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2977 states to 2977 states and 7849 transitions. [2021-08-21 11:51:19,484 INFO L78 Accepts]: Start accepts. Automaton has 2977 states and 7849 transitions. Word has length 119 [2021-08-21 11:51:19,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:19,485 INFO L470 AbstractCegarLoop]: Abstraction has 2977 states and 7849 transitions. [2021-08-21 11:51:19,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2977 states and 7849 transitions. [2021-08-21 11:51:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:19,487 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:19,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:19,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-08-21 11:51:19,488 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:19,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:19,488 INFO L82 PathProgramCache]: Analyzing trace with hash -2015144527, now seen corresponding path program 93 times [2021-08-21 11:51:19,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:19,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201262588] [2021-08-21 11:51:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:19,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:20,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:20,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:20,598 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201262588] [2021-08-21 11:51:20,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201262588] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:20,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:20,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:20,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544887866] [2021-08-21 11:51:20,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:20,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:20,599 INFO L87 Difference]: Start difference. First operand 2977 states and 7849 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:24,121 INFO L93 Difference]: Finished difference Result 3603 states and 9318 transitions. [2021-08-21 11:51:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:51:24,121 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:24,126 INFO L225 Difference]: With dead ends: 3603 [2021-08-21 11:51:24,126 INFO L226 Difference]: Without dead ends: 3396 [2021-08-21 11:51:24,127 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2861.7ms TimeCoverageRelationStatistics Valid=648, Invalid=3134, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:51:24,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2021-08-21 11:51:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 2917. [2021-08-21 11:51:24,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2916 states have (on average 2.651920438957476) internal successors, (7733), 2916 states have internal predecessors, (7733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 7733 transitions. [2021-08-21 11:51:24,155 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 7733 transitions. Word has length 119 [2021-08-21 11:51:24,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:24,155 INFO L470 AbstractCegarLoop]: Abstraction has 2917 states and 7733 transitions. [2021-08-21 11:51:24,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:24,156 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 7733 transitions. [2021-08-21 11:51:24,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:24,158 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:24,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:24,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-08-21 11:51:24,158 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:24,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:24,158 INFO L82 PathProgramCache]: Analyzing trace with hash -397519297, now seen corresponding path program 94 times [2021-08-21 11:51:24,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:24,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516685103] [2021-08-21 11:51:24,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:24,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:24,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:24,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516685103] [2021-08-21 11:51:24,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516685103] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:24,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:24,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:51:24,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744553226] [2021-08-21 11:51:24,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:51:24,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:24,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:51:24,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:51:24,457 INFO L87 Difference]: Start difference. First operand 2917 states and 7733 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:25,086 INFO L93 Difference]: Finished difference Result 3386 states and 8758 transitions. [2021-08-21 11:51:25,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:51:25,087 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:25,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:25,091 INFO L225 Difference]: With dead ends: 3386 [2021-08-21 11:51:25,091 INFO L226 Difference]: Without dead ends: 3330 [2021-08-21 11:51:25,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 530.1ms TimeCoverageRelationStatistics Valid=266, Invalid=790, Unknown=0, NotChecked=0, Total=1056 [2021-08-21 11:51:25,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2021-08-21 11:51:25,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 2735. [2021-08-21 11:51:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2735 states, 2734 states have (on average 2.6430138990490124) internal successors, (7226), 2734 states have internal predecessors, (7226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:25,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2735 states to 2735 states and 7226 transitions. [2021-08-21 11:51:25,118 INFO L78 Accepts]: Start accepts. Automaton has 2735 states and 7226 transitions. Word has length 119 [2021-08-21 11:51:25,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:25,119 INFO L470 AbstractCegarLoop]: Abstraction has 2735 states and 7226 transitions. [2021-08-21 11:51:25,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:25,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2735 states and 7226 transitions. [2021-08-21 11:51:25,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:25,121 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:25,121 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:25,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-08-21 11:51:25,121 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:25,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:25,122 INFO L82 PathProgramCache]: Analyzing trace with hash -968764387, now seen corresponding path program 95 times [2021-08-21 11:51:25,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:25,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887622612] [2021-08-21 11:51:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:25,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:25,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:25,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:25,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887622612] [2021-08-21 11:51:25,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887622612] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:25,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:25,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:25,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233254254] [2021-08-21 11:51:25,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:25,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:25,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:25,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:25,980 INFO L87 Difference]: Start difference. First operand 2735 states and 7226 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:28,509 INFO L93 Difference]: Finished difference Result 2862 states and 7457 transitions. [2021-08-21 11:51:28,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:51:28,509 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:28,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:28,513 INFO L225 Difference]: With dead ends: 2862 [2021-08-21 11:51:28,513 INFO L226 Difference]: Without dead ends: 2759 [2021-08-21 11:51:28,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2209.8ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:51:28,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2759 states. [2021-08-21 11:51:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2759 to 2745. [2021-08-21 11:51:28,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 2744 states have (on average 2.6395772594752187) internal successors, (7243), 2744 states have internal predecessors, (7243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 7243 transitions. [2021-08-21 11:51:28,538 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 7243 transitions. Word has length 119 [2021-08-21 11:51:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:28,538 INFO L470 AbstractCegarLoop]: Abstraction has 2745 states and 7243 transitions. [2021-08-21 11:51:28,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 7243 transitions. [2021-08-21 11:51:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:28,541 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:28,541 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:28,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-08-21 11:51:28,541 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash -1398243573, now seen corresponding path program 96 times [2021-08-21 11:51:28,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:28,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809088894] [2021-08-21 11:51:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:28,542 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:29,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:29,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809088894] [2021-08-21 11:51:29,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809088894] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:29,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:29,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:29,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244926916] [2021-08-21 11:51:29,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:29,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:29,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:29,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:29,461 INFO L87 Difference]: Start difference. First operand 2745 states and 7243 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:32,066 INFO L93 Difference]: Finished difference Result 2896 states and 7530 transitions. [2021-08-21 11:51:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:51:32,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:32,070 INFO L225 Difference]: With dead ends: 2896 [2021-08-21 11:51:32,070 INFO L226 Difference]: Without dead ends: 2791 [2021-08-21 11:51:32,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 2314.0ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:51:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-08-21 11:51:32,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2747. [2021-08-21 11:51:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2747 states, 2746 states have (on average 2.638747268754552) internal successors, (7246), 2746 states have internal predecessors, (7246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:32,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 7246 transitions. [2021-08-21 11:51:32,096 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 7246 transitions. Word has length 119 [2021-08-21 11:51:32,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:32,096 INFO L470 AbstractCegarLoop]: Abstraction has 2747 states and 7246 transitions. [2021-08-21 11:51:32,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:32,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 7246 transitions. [2021-08-21 11:51:32,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:32,099 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:32,099 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:32,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-08-21 11:51:32,099 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:32,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:32,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1812011969, now seen corresponding path program 97 times [2021-08-21 11:51:32,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:32,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877805195] [2021-08-21 11:51:32,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:32,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:32,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877805195] [2021-08-21 11:51:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877805195] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:32,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:32,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:32,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759420899] [2021-08-21 11:51:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:32,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:32,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:32,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:32,992 INFO L87 Difference]: Start difference. First operand 2747 states and 7246 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:35,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:35,439 INFO L93 Difference]: Finished difference Result 2852 states and 7434 transitions. [2021-08-21 11:51:35,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:51:35,440 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:35,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:35,443 INFO L225 Difference]: With dead ends: 2852 [2021-08-21 11:51:35,443 INFO L226 Difference]: Without dead ends: 2747 [2021-08-21 11:51:35,444 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 2231.0ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:51:35,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-08-21 11:51:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2739. [2021-08-21 11:51:35,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2739 states, 2738 states have (on average 2.6402483564645727) internal successors, (7229), 2738 states have internal predecessors, (7229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:35,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 7229 transitions. [2021-08-21 11:51:35,476 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 7229 transitions. Word has length 119 [2021-08-21 11:51:35,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:35,476 INFO L470 AbstractCegarLoop]: Abstraction has 2739 states and 7229 transitions. [2021-08-21 11:51:35,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:35,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 7229 transitions. [2021-08-21 11:51:35,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:35,478 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:35,479 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:35,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-08-21 11:51:35,479 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:35,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:35,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1642411897, now seen corresponding path program 98 times [2021-08-21 11:51:35,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:35,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519918613] [2021-08-21 11:51:35,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:35,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:36,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:36,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:36,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519918613] [2021-08-21 11:51:36,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519918613] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:36,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:36,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:36,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690631940] [2021-08-21 11:51:36,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:36,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:36,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:36,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:36,519 INFO L87 Difference]: Start difference. First operand 2739 states and 7229 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:39,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:39,218 INFO L93 Difference]: Finished difference Result 3130 states and 8148 transitions. [2021-08-21 11:51:39,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:51:39,219 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:39,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:39,222 INFO L225 Difference]: With dead ends: 3130 [2021-08-21 11:51:39,222 INFO L226 Difference]: Without dead ends: 3025 [2021-08-21 11:51:39,222 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2356.5ms TimeCoverageRelationStatistics Valid=489, Invalid=2591, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:51:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3025 states. [2021-08-21 11:51:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3025 to 2775. [2021-08-21 11:51:39,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.638788752703677) internal successors, (7320), 2774 states have internal predecessors, (7320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7320 transitions. [2021-08-21 11:51:39,248 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7320 transitions. Word has length 119 [2021-08-21 11:51:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:39,249 INFO L470 AbstractCegarLoop]: Abstraction has 2775 states and 7320 transitions. [2021-08-21 11:51:39,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:39,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7320 transitions. [2021-08-21 11:51:39,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:39,251 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:39,251 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:39,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-08-21 11:51:39,251 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:39,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:39,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1941928779, now seen corresponding path program 99 times [2021-08-21 11:51:39,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:39,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362928322] [2021-08-21 11:51:39,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:39,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:40,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:40,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362928322] [2021-08-21 11:51:40,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362928322] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:40,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:40,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:40,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909030977] [2021-08-21 11:51:40,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:40,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:40,244 INFO L87 Difference]: Start difference. First operand 2775 states and 7320 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:42,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:42,512 INFO L93 Difference]: Finished difference Result 3330 states and 8661 transitions. [2021-08-21 11:51:42,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:51:42,513 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:42,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:42,517 INFO L225 Difference]: With dead ends: 3330 [2021-08-21 11:51:42,517 INFO L226 Difference]: Without dead ends: 3235 [2021-08-21 11:51:42,532 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2000.4ms TimeCoverageRelationStatistics Valid=489, Invalid=2591, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:51:42,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3235 states. [2021-08-21 11:51:42,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3235 to 2943. [2021-08-21 11:51:42,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2943 states, 2942 states have (on average 2.6301835486063903) internal successors, (7738), 2942 states have internal predecessors, (7738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2943 states to 2943 states and 7738 transitions. [2021-08-21 11:51:42,564 INFO L78 Accepts]: Start accepts. Automaton has 2943 states and 7738 transitions. Word has length 119 [2021-08-21 11:51:42,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:42,564 INFO L470 AbstractCegarLoop]: Abstraction has 2943 states and 7738 transitions. [2021-08-21 11:51:42,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 2943 states and 7738 transitions. [2021-08-21 11:51:42,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:42,566 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:42,566 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:42,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-08-21 11:51:42,566 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:42,567 INFO L82 PathProgramCache]: Analyzing trace with hash 157565899, now seen corresponding path program 100 times [2021-08-21 11:51:42,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:42,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973675796] [2021-08-21 11:51:42,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:42,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:42,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:43,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:43,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973675796] [2021-08-21 11:51:43,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973675796] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:43,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:43,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:43,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213687117] [2021-08-21 11:51:43,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:43,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:43,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:43,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:43,217 INFO L87 Difference]: Start difference. First operand 2943 states and 7738 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:45,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:45,443 INFO L93 Difference]: Finished difference Result 3553 states and 9164 transitions. [2021-08-21 11:51:45,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:51:45,443 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:45,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:45,447 INFO L225 Difference]: With dead ends: 3553 [2021-08-21 11:51:45,447 INFO L226 Difference]: Without dead ends: 2998 [2021-08-21 11:51:45,448 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 1862.9ms TimeCoverageRelationStatistics Valid=507, Invalid=2685, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:51:45,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-08-21 11:51:45,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2715. [2021-08-21 11:51:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 2.6326455416359615) internal successors, (7145), 2714 states have internal predecessors, (7145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:45,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 7145 transitions. [2021-08-21 11:51:45,479 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 7145 transitions. Word has length 119 [2021-08-21 11:51:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:45,479 INFO L470 AbstractCegarLoop]: Abstraction has 2715 states and 7145 transitions. [2021-08-21 11:51:45,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:45,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 7145 transitions. [2021-08-21 11:51:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:45,482 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:45,482 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:45,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-08-21 11:51:45,482 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:45,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash 732161985, now seen corresponding path program 101 times [2021-08-21 11:51:45,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:45,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250730557] [2021-08-21 11:51:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:45,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:46,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:46,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:46,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250730557] [2021-08-21 11:51:46,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250730557] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:46,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:46,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:46,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584315402] [2021-08-21 11:51:46,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:46,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:46,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:46,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:46,428 INFO L87 Difference]: Start difference. First operand 2715 states and 7145 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:48,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:48,918 INFO L93 Difference]: Finished difference Result 2860 states and 7421 transitions. [2021-08-21 11:51:48,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:51:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:48,922 INFO L225 Difference]: With dead ends: 2860 [2021-08-21 11:51:48,922 INFO L226 Difference]: Without dead ends: 2755 [2021-08-21 11:51:48,922 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 522 ImplicationChecksByTransitivity, 2185.2ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:51:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-08-21 11:51:48,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2717. [2021-08-21 11:51:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2717 states, 2716 states have (on average 2.6318114874815906) internal successors, (7148), 2716 states have internal predecessors, (7148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:48,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2717 states to 2717 states and 7148 transitions. [2021-08-21 11:51:48,946 INFO L78 Accepts]: Start accepts. Automaton has 2717 states and 7148 transitions. Word has length 119 [2021-08-21 11:51:48,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:48,946 INFO L470 AbstractCegarLoop]: Abstraction has 2717 states and 7148 transitions. [2021-08-21 11:51:48,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:48,946 INFO L276 IsEmpty]: Start isEmpty. Operand 2717 states and 7148 transitions. [2021-08-21 11:51:48,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:48,948 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:48,948 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:48,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-08-21 11:51:48,948 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash -735092609, now seen corresponding path program 102 times [2021-08-21 11:51:48,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:48,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709863465] [2021-08-21 11:51:48,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:48,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:49,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:49,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:49,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709863465] [2021-08-21 11:51:49,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709863465] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:49,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:49,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:49,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608985759] [2021-08-21 11:51:49,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:49,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:49,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:49,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=792, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:49,663 INFO L87 Difference]: Start difference. First operand 2717 states and 7148 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:51,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:51,618 INFO L93 Difference]: Finished difference Result 2818 states and 7328 transitions. [2021-08-21 11:51:51,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:51:51,619 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:51,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:51,622 INFO L225 Difference]: With dead ends: 2818 [2021-08-21 11:51:51,622 INFO L226 Difference]: Without dead ends: 2719 [2021-08-21 11:51:51,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 1639.3ms TimeCoverageRelationStatistics Valid=509, Invalid=2571, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:51:51,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-08-21 11:51:51,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2715. [2021-08-21 11:51:51,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2715 states, 2714 states have (on average 2.632277081798084) internal successors, (7144), 2714 states have internal predecessors, (7144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:51,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 7144 transitions. [2021-08-21 11:51:51,647 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 7144 transitions. Word has length 119 [2021-08-21 11:51:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:51,647 INFO L470 AbstractCegarLoop]: Abstraction has 2715 states and 7144 transitions. [2021-08-21 11:51:51,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 7144 transitions. [2021-08-21 11:51:51,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:51,649 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:51,650 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:51,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-08-21 11:51:51,650 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:51,650 INFO L82 PathProgramCache]: Analyzing trace with hash -552508545, now seen corresponding path program 103 times [2021-08-21 11:51:51,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:51,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54191422] [2021-08-21 11:51:51,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:51,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:52,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:52,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:52,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54191422] [2021-08-21 11:51:52,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54191422] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:52,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:52,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:52,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976482720] [2021-08-21 11:51:52,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:52,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:52,432 INFO L87 Difference]: Start difference. First operand 2715 states and 7144 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:54,423 INFO L93 Difference]: Finished difference Result 3034 states and 7885 transitions. [2021-08-21 11:51:54,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:51:54,423 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:54,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:54,428 INFO L225 Difference]: With dead ends: 3034 [2021-08-21 11:51:54,428 INFO L226 Difference]: Without dead ends: 2939 [2021-08-21 11:51:54,428 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1671.7ms TimeCoverageRelationStatistics Valid=510, Invalid=2682, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:51:54,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2021-08-21 11:51:54,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2859. [2021-08-21 11:51:54,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2858 states have (on average 2.629111266620014) internal successors, (7514), 2858 states have internal predecessors, (7514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 7514 transitions. [2021-08-21 11:51:54,457 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 7514 transitions. Word has length 119 [2021-08-21 11:51:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:54,457 INFO L470 AbstractCegarLoop]: Abstraction has 2859 states and 7514 transitions. [2021-08-21 11:51:54,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:54,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 7514 transitions. [2021-08-21 11:51:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:54,460 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:54,460 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:54,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-08-21 11:51:54,460 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:54,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:54,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1958095871, now seen corresponding path program 104 times [2021-08-21 11:51:54,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:54,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392698259] [2021-08-21 11:51:54,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:54,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:55,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:55,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392698259] [2021-08-21 11:51:55,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392698259] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:55,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:55,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:51:55,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756002956] [2021-08-21 11:51:55,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:51:55,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:55,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:51:55,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:51:55,175 INFO L87 Difference]: Start difference. First operand 2859 states and 7514 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:57,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:51:57,265 INFO L93 Difference]: Finished difference Result 3257 states and 8388 transitions. [2021-08-21 11:51:57,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:51:57,265 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:51:57,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:51:57,269 INFO L225 Difference]: With dead ends: 3257 [2021-08-21 11:51:57,269 INFO L226 Difference]: Without dead ends: 2762 [2021-08-21 11:51:57,269 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 1785.0ms TimeCoverageRelationStatistics Valid=532, Invalid=2774, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:51:57,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2021-08-21 11:51:57,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2691. [2021-08-21 11:51:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2691 states, 2690 states have (on average 2.633457249070632) internal successors, (7084), 2690 states have internal predecessors, (7084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:57,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2691 states to 2691 states and 7084 transitions. [2021-08-21 11:51:57,293 INFO L78 Accepts]: Start accepts. Automaton has 2691 states and 7084 transitions. Word has length 119 [2021-08-21 11:51:57,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:51:57,293 INFO L470 AbstractCegarLoop]: Abstraction has 2691 states and 7084 transitions. [2021-08-21 11:51:57,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:51:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2691 states and 7084 transitions. [2021-08-21 11:51:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:51:57,295 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:51:57,295 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:51:57,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-08-21 11:51:57,296 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:51:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:51:57,296 INFO L82 PathProgramCache]: Analyzing trace with hash 78279941, now seen corresponding path program 105 times [2021-08-21 11:51:57,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:51:57,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250307317] [2021-08-21 11:51:57,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:51:57,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:51:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:51:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:51:58,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:51:58,334 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250307317] [2021-08-21 11:51:58,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250307317] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:51:58,334 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:51:58,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:51:58,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904575782] [2021-08-21 11:51:58,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:51:58,335 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:51:58,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:51:58,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=799, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:51:58,335 INFO L87 Difference]: Start difference. First operand 2691 states and 7084 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:00,874 INFO L93 Difference]: Finished difference Result 2792 states and 7264 transitions. [2021-08-21 11:52:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:52:00,875 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:00,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:00,878 INFO L225 Difference]: With dead ends: 2792 [2021-08-21 11:52:00,878 INFO L226 Difference]: Without dead ends: 2635 [2021-08-21 11:52:00,878 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 2205.2ms TimeCoverageRelationStatistics Valid=504, Invalid=2576, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:52:00,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2635 states. [2021-08-21 11:52:00,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2635 to 2631. [2021-08-21 11:52:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 2630 states have (on average 2.649429657794677) internal successors, (6968), 2630 states have internal predecessors, (6968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:00,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 6968 transitions. [2021-08-21 11:52:00,908 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 6968 transitions. Word has length 119 [2021-08-21 11:52:00,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:00,908 INFO L470 AbstractCegarLoop]: Abstraction has 2631 states and 6968 transitions. [2021-08-21 11:52:00,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 6968 transitions. [2021-08-21 11:52:00,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:00,911 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:00,911 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:00,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-08-21 11:52:00,911 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:00,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1979941897, now seen corresponding path program 106 times [2021-08-21 11:52:00,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:00,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274673509] [2021-08-21 11:52:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:00,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:01,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:01,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274673509] [2021-08-21 11:52:01,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274673509] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:01,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:01,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:01,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563612353] [2021-08-21 11:52:01,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:01,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:01,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:01,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:01,744 INFO L87 Difference]: Start difference. First operand 2631 states and 6968 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:03,714 INFO L93 Difference]: Finished difference Result 2769 states and 7221 transitions. [2021-08-21 11:52:03,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:03,714 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:03,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:03,717 INFO L225 Difference]: With dead ends: 2769 [2021-08-21 11:52:03,717 INFO L226 Difference]: Without dead ends: 2615 [2021-08-21 11:52:03,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1745.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2615 states. [2021-08-21 11:52:03,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2615 to 2615. [2021-08-21 11:52:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.6541698546289214) internal successors, (6938), 2614 states have internal predecessors, (6938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:03,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6938 transitions. [2021-08-21 11:52:03,741 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6938 transitions. Word has length 119 [2021-08-21 11:52:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:03,742 INFO L470 AbstractCegarLoop]: Abstraction has 2615 states and 6938 transitions. [2021-08-21 11:52:03,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6938 transitions. [2021-08-21 11:52:03,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:03,744 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:03,744 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:03,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-08-21 11:52:03,744 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:03,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:03,744 INFO L82 PathProgramCache]: Analyzing trace with hash -2085382191, now seen corresponding path program 107 times [2021-08-21 11:52:03,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:03,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643312561] [2021-08-21 11:52:03,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:03,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:03,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:04,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:04,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643312561] [2021-08-21 11:52:04,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643312561] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:04,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:04,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:04,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502388125] [2021-08-21 11:52:04,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:04,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:04,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:04,724 INFO L87 Difference]: Start difference. First operand 2615 states and 6938 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:07,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:07,193 INFO L93 Difference]: Finished difference Result 2797 states and 7279 transitions. [2021-08-21 11:52:07,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:07,193 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:07,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:07,197 INFO L225 Difference]: With dead ends: 2797 [2021-08-21 11:52:07,197 INFO L226 Difference]: Without dead ends: 2659 [2021-08-21 11:52:07,197 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 2153.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2021-08-21 11:52:07,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2627. [2021-08-21 11:52:07,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2626 states have (on average 2.6504188880426502) internal successors, (6960), 2626 states have internal predecessors, (6960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:07,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 6960 transitions. [2021-08-21 11:52:07,243 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 6960 transitions. Word has length 119 [2021-08-21 11:52:07,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:07,243 INFO L470 AbstractCegarLoop]: Abstraction has 2627 states and 6960 transitions. [2021-08-21 11:52:07,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:07,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 6960 transitions. [2021-08-21 11:52:07,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:07,245 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:07,245 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:07,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-08-21 11:52:07,246 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:07,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:07,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1209480819, now seen corresponding path program 108 times [2021-08-21 11:52:07,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:07,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780140197] [2021-08-21 11:52:07,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:07,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:08,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:08,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780140197] [2021-08-21 11:52:08,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780140197] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:08,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:08,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:08,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840218518] [2021-08-21 11:52:08,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:08,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:08,061 INFO L87 Difference]: Start difference. First operand 2627 states and 6960 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:10,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:10,399 INFO L93 Difference]: Finished difference Result 2787 states and 7258 transitions. [2021-08-21 11:52:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:52:10,400 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:10,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:10,403 INFO L225 Difference]: With dead ends: 2787 [2021-08-21 11:52:10,403 INFO L226 Difference]: Without dead ends: 2655 [2021-08-21 11:52:10,403 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1993.2ms TimeCoverageRelationStatistics Valid=480, Invalid=2382, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:52:10,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2021-08-21 11:52:10,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2629. [2021-08-21 11:52:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2629 states, 2628 states have (on average 2.6495433789954337) internal successors, (6963), 2628 states have internal predecessors, (6963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2629 states to 2629 states and 6963 transitions. [2021-08-21 11:52:10,428 INFO L78 Accepts]: Start accepts. Automaton has 2629 states and 6963 transitions. Word has length 119 [2021-08-21 11:52:10,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:10,428 INFO L470 AbstractCegarLoop]: Abstraction has 2629 states and 6963 transitions. [2021-08-21 11:52:10,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 2629 states and 6963 transitions. [2021-08-21 11:52:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:10,430 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:10,430 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:10,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-08-21 11:52:10,431 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:10,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:10,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1105634673, now seen corresponding path program 109 times [2021-08-21 11:52:10,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:10,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716544384] [2021-08-21 11:52:10,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:10,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:11,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:11,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716544384] [2021-08-21 11:52:11,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716544384] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:11,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:11,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:11,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308726942] [2021-08-21 11:52:11,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:11,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:11,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:11,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:11,158 INFO L87 Difference]: Start difference. First operand 2629 states and 6963 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:13,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:13,103 INFO L93 Difference]: Finished difference Result 2853 states and 7396 transitions. [2021-08-21 11:52:13,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:52:13,104 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:13,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:13,107 INFO L225 Difference]: With dead ends: 2853 [2021-08-21 11:52:13,107 INFO L226 Difference]: Without dead ends: 2700 [2021-08-21 11:52:13,107 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1652.9ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:52:13,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2021-08-21 11:52:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2621. [2021-08-21 11:52:13,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.652290076335878) internal successors, (6949), 2620 states have internal predecessors, (6949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6949 transitions. [2021-08-21 11:52:13,131 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6949 transitions. Word has length 119 [2021-08-21 11:52:13,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:13,131 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 6949 transitions. [2021-08-21 11:52:13,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6949 transitions. [2021-08-21 11:52:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:13,133 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:13,133 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:13,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-08-21 11:52:13,134 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:13,134 INFO L82 PathProgramCache]: Analyzing trace with hash 2099584481, now seen corresponding path program 110 times [2021-08-21 11:52:13,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:13,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894656663] [2021-08-21 11:52:13,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:13,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:13,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:13,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894656663] [2021-08-21 11:52:13,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894656663] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:13,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:13,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:13,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450791543] [2021-08-21 11:52:13,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:13,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:13,863 INFO L87 Difference]: Start difference. First operand 2621 states and 6949 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:16,156 INFO L93 Difference]: Finished difference Result 2744 states and 7170 transitions. [2021-08-21 11:52:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:16,156 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:16,159 INFO L225 Difference]: With dead ends: 2744 [2021-08-21 11:52:16,159 INFO L226 Difference]: Without dead ends: 2637 [2021-08-21 11:52:16,160 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1930.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2206, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-08-21 11:52:16,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2617. [2021-08-21 11:52:16,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2617 states, 2616 states have (on average 2.6532874617737003) internal successors, (6941), 2616 states have internal predecessors, (6941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:16,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2617 states to 2617 states and 6941 transitions. [2021-08-21 11:52:16,183 INFO L78 Accepts]: Start accepts. Automaton has 2617 states and 6941 transitions. Word has length 119 [2021-08-21 11:52:16,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:16,184 INFO L470 AbstractCegarLoop]: Abstraction has 2617 states and 6941 transitions. [2021-08-21 11:52:16,184 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:16,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states and 6941 transitions. [2021-08-21 11:52:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:16,186 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:16,186 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:16,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-08-21 11:52:16,186 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:16,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:16,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1713157365, now seen corresponding path program 111 times [2021-08-21 11:52:16,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:16,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448671394] [2021-08-21 11:52:16,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:16,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:17,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:17,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448671394] [2021-08-21 11:52:17,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448671394] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:17,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:17,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:17,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604822274] [2021-08-21 11:52:17,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:17,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:17,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:17,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:17,147 INFO L87 Difference]: Start difference. First operand 2617 states and 6941 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:19,276 INFO L93 Difference]: Finished difference Result 2775 states and 7236 transitions. [2021-08-21 11:52:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:19,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:19,279 INFO L225 Difference]: With dead ends: 2775 [2021-08-21 11:52:19,279 INFO L226 Difference]: Without dead ends: 2637 [2021-08-21 11:52:19,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1926.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:19,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2021-08-21 11:52:19,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2621. [2021-08-21 11:52:19,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.652290076335878) internal successors, (6949), 2620 states have internal predecessors, (6949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:19,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6949 transitions. [2021-08-21 11:52:19,302 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6949 transitions. Word has length 119 [2021-08-21 11:52:19,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:19,302 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 6949 transitions. [2021-08-21 11:52:19,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:19,302 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6949 transitions. [2021-08-21 11:52:19,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:19,305 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:19,305 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:19,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-08-21 11:52:19,305 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:19,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:19,305 INFO L82 PathProgramCache]: Analyzing trace with hash 955658407, now seen corresponding path program 112 times [2021-08-21 11:52:19,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:19,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767077257] [2021-08-21 11:52:19,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:19,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:20,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:20,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767077257] [2021-08-21 11:52:20,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767077257] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:20,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:20,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:20,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202601154] [2021-08-21 11:52:20,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:20,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:20,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:20,223 INFO L87 Difference]: Start difference. First operand 2621 states and 6949 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:22,638 INFO L93 Difference]: Finished difference Result 2734 states and 7155 transitions. [2021-08-21 11:52:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:22,638 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:22,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:22,641 INFO L225 Difference]: With dead ends: 2734 [2021-08-21 11:52:22,641 INFO L226 Difference]: Without dead ends: 2629 [2021-08-21 11:52:22,641 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2164.2ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2021-08-21 11:52:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 2625. [2021-08-21 11:52:22,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2624 states have (on average 2.6497713414634148) internal successors, (6953), 2624 states have internal predecessors, (6953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:22,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 6953 transitions. [2021-08-21 11:52:22,665 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 6953 transitions. Word has length 119 [2021-08-21 11:52:22,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:22,665 INFO L470 AbstractCegarLoop]: Abstraction has 2625 states and 6953 transitions. [2021-08-21 11:52:22,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:22,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 6953 transitions. [2021-08-21 11:52:22,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:22,667 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:22,667 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:22,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-08-21 11:52:22,668 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:22,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:22,668 INFO L82 PathProgramCache]: Analyzing trace with hash 294118071, now seen corresponding path program 113 times [2021-08-21 11:52:22,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:22,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543640963] [2021-08-21 11:52:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:22,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:23,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:23,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543640963] [2021-08-21 11:52:23,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543640963] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:23,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:23,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:23,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457776284] [2021-08-21 11:52:23,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:23,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:23,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:23,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:23,586 INFO L87 Difference]: Start difference. First operand 2625 states and 6953 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:26,071 INFO L93 Difference]: Finished difference Result 2768 states and 7226 transitions. [2021-08-21 11:52:26,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:52:26,071 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:26,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:26,075 INFO L225 Difference]: With dead ends: 2768 [2021-08-21 11:52:26,075 INFO L226 Difference]: Without dead ends: 2663 [2021-08-21 11:52:26,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 2226.8ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:52:26,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2021-08-21 11:52:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2627. [2021-08-21 11:52:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2627 states, 2626 states have (on average 2.648895658796649) internal successors, (6956), 2626 states have internal predecessors, (6956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2627 states to 2627 states and 6956 transitions. [2021-08-21 11:52:26,102 INFO L78 Accepts]: Start accepts. Automaton has 2627 states and 6956 transitions. Word has length 119 [2021-08-21 11:52:26,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:26,102 INFO L470 AbstractCegarLoop]: Abstraction has 2627 states and 6956 transitions. [2021-08-21 11:52:26,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2627 states and 6956 transitions. [2021-08-21 11:52:26,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:26,104 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:26,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:26,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-08-21 11:52:26,105 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:26,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:26,105 INFO L82 PathProgramCache]: Analyzing trace with hash -119650325, now seen corresponding path program 114 times [2021-08-21 11:52:26,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:26,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342343282] [2021-08-21 11:52:26,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:26,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:27,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:27,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:27,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342343282] [2021-08-21 11:52:27,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342343282] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:27,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:27,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:27,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886612671] [2021-08-21 11:52:27,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:27,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:27,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:27,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:27,025 INFO L87 Difference]: Start difference. First operand 2627 states and 6956 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:29,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:29,453 INFO L93 Difference]: Finished difference Result 2724 states and 7130 transitions. [2021-08-21 11:52:29,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:29,453 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:29,457 INFO L225 Difference]: With dead ends: 2724 [2021-08-21 11:52:29,457 INFO L226 Difference]: Without dead ends: 2603 [2021-08-21 11:52:29,457 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 2179.0ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:29,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2021-08-21 11:52:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2603. [2021-08-21 11:52:29,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2602 states have (on average 2.6571867794004613) internal successors, (6914), 2602 states have internal predecessors, (6914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 6914 transitions. [2021-08-21 11:52:29,481 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 6914 transitions. Word has length 119 [2021-08-21 11:52:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:29,481 INFO L470 AbstractCegarLoop]: Abstraction has 2603 states and 6914 transitions. [2021-08-21 11:52:29,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:29,481 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 6914 transitions. [2021-08-21 11:52:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:29,483 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:29,483 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:29,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-08-21 11:52:29,484 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:29,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:29,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1182707545, now seen corresponding path program 115 times [2021-08-21 11:52:29,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:29,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403815296] [2021-08-21 11:52:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:29,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:30,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:30,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:30,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403815296] [2021-08-21 11:52:30,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403815296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:30,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:30,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:30,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851592725] [2021-08-21 11:52:30,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:30,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:30,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:30,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:30,439 INFO L87 Difference]: Start difference. First operand 2603 states and 6914 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:33,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:33,053 INFO L93 Difference]: Finished difference Result 2903 states and 7550 transitions. [2021-08-21 11:52:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:33,053 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:33,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:33,056 INFO L225 Difference]: With dead ends: 2903 [2021-08-21 11:52:33,056 INFO L226 Difference]: Without dead ends: 2765 [2021-08-21 11:52:33,056 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2246.9ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:33,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2765 states. [2021-08-21 11:52:33,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2765 to 2643. [2021-08-21 11:52:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.651778955336866) internal successors, (7006), 2642 states have internal predecessors, (7006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 7006 transitions. [2021-08-21 11:52:33,080 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 7006 transitions. Word has length 119 [2021-08-21 11:52:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:33,080 INFO L470 AbstractCegarLoop]: Abstraction has 2643 states and 7006 transitions. [2021-08-21 11:52:33,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 7006 transitions. [2021-08-21 11:52:33,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:33,082 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:33,082 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:33,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-08-21 11:52:33,082 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:33,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:33,083 INFO L82 PathProgramCache]: Analyzing trace with hash 2112155465, now seen corresponding path program 116 times [2021-08-21 11:52:33,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:33,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498763417] [2021-08-21 11:52:33,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:33,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:33,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:33,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:33,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498763417] [2021-08-21 11:52:33,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498763417] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:33,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:33,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:33,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048197378] [2021-08-21 11:52:33,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:33,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:33,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:33,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:33,893 INFO L87 Difference]: Start difference. First operand 2643 states and 7006 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:36,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:36,657 INFO L93 Difference]: Finished difference Result 2899 states and 7540 transitions. [2021-08-21 11:52:36,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:52:36,657 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:36,661 INFO L225 Difference]: With dead ends: 2899 [2021-08-21 11:52:36,661 INFO L226 Difference]: Without dead ends: 2767 [2021-08-21 11:52:36,661 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2348.4ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:52:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2767 states. [2021-08-21 11:52:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2767 to 2645. [2021-08-21 11:52:36,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 2.6509077155824508) internal successors, (7009), 2644 states have internal predecessors, (7009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:36,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 7009 transitions. [2021-08-21 11:52:36,688 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 7009 transitions. Word has length 119 [2021-08-21 11:52:36,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:36,688 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 7009 transitions. [2021-08-21 11:52:36,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:36,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 7009 transitions. [2021-08-21 11:52:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:36,691 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:36,691 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:36,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-08-21 11:52:36,691 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:36,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:36,691 INFO L82 PathProgramCache]: Analyzing trace with hash -202960027, now seen corresponding path program 117 times [2021-08-21 11:52:36,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:36,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138741355] [2021-08-21 11:52:36,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:36,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:37,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:37,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138741355] [2021-08-21 11:52:37,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138741355] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:37,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:37,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:37,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160641604] [2021-08-21 11:52:37,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:37,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:37,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:37,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:37,572 INFO L87 Difference]: Start difference. First operand 2645 states and 7009 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:40,157 INFO L93 Difference]: Finished difference Result 2908 states and 7560 transitions. [2021-08-21 11:52:40,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:52:40,157 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:40,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:40,161 INFO L225 Difference]: With dead ends: 2908 [2021-08-21 11:52:40,161 INFO L226 Difference]: Without dead ends: 2755 [2021-08-21 11:52:40,161 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2230.1ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:52:40,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-08-21 11:52:40,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2637. [2021-08-21 11:52:40,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2637 states, 2636 states have (on average 2.6513657056145674) internal successors, (6989), 2636 states have internal predecessors, (6989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:40,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2637 states to 2637 states and 6989 transitions. [2021-08-21 11:52:40,187 INFO L78 Accepts]: Start accepts. Automaton has 2637 states and 6989 transitions. Word has length 119 [2021-08-21 11:52:40,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:40,188 INFO L470 AbstractCegarLoop]: Abstraction has 2637 states and 6989 transitions. [2021-08-21 11:52:40,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:40,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2637 states and 6989 transitions. [2021-08-21 11:52:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:40,190 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:40,190 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:40,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-08-21 11:52:40,190 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:40,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:40,191 INFO L82 PathProgramCache]: Analyzing trace with hash 160716967, now seen corresponding path program 118 times [2021-08-21 11:52:40,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:40,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154541977] [2021-08-21 11:52:40,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:40,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:41,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:41,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154541977] [2021-08-21 11:52:41,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154541977] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:41,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:41,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:41,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481085551] [2021-08-21 11:52:41,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:41,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:41,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:41,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:41,034 INFO L87 Difference]: Start difference. First operand 2637 states and 6989 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:43,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:43,201 INFO L93 Difference]: Finished difference Result 2931 states and 7618 transitions. [2021-08-21 11:52:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:52:43,201 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:43,205 INFO L225 Difference]: With dead ends: 2931 [2021-08-21 11:52:43,205 INFO L226 Difference]: Without dead ends: 2799 [2021-08-21 11:52:43,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1921.8ms TimeCoverageRelationStatistics Valid=499, Invalid=2471, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:52:43,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-08-21 11:52:43,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2645. [2021-08-21 11:52:43,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 2.6501512859304084) internal successors, (7007), 2644 states have internal predecessors, (7007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 7007 transitions. [2021-08-21 11:52:43,268 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 7007 transitions. Word has length 119 [2021-08-21 11:52:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:43,268 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 7007 transitions. [2021-08-21 11:52:43,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:43,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 7007 transitions. [2021-08-21 11:52:43,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:43,270 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:43,270 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:43,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-08-21 11:52:43,270 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:43,271 INFO L82 PathProgramCache]: Analyzing trace with hash 2140568771, now seen corresponding path program 119 times [2021-08-21 11:52:43,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:43,271 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910662105] [2021-08-21 11:52:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:43,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:44,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:44,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910662105] [2021-08-21 11:52:44,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910662105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:44,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:44,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:44,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843184788] [2021-08-21 11:52:44,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:44,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:44,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:44,062 INFO L87 Difference]: Start difference. First operand 2645 states and 7007 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:46,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:46,258 INFO L93 Difference]: Finished difference Result 2944 states and 7646 transitions. [2021-08-21 11:52:46,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:52:46,259 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:46,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:46,262 INFO L225 Difference]: With dead ends: 2944 [2021-08-21 11:52:46,262 INFO L226 Difference]: Without dead ends: 2797 [2021-08-21 11:52:46,263 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 1870.1ms TimeCoverageRelationStatistics Valid=483, Invalid=2487, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:52:46,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2021-08-21 11:52:46,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2643. [2021-08-21 11:52:46,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.6502649507948526) internal successors, (7002), 2642 states have internal predecessors, (7002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 7002 transitions. [2021-08-21 11:52:46,291 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 7002 transitions. Word has length 119 [2021-08-21 11:52:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:46,291 INFO L470 AbstractCegarLoop]: Abstraction has 2643 states and 7002 transitions. [2021-08-21 11:52:46,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 7002 transitions. [2021-08-21 11:52:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:46,294 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:46,294 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:46,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-08-21 11:52:46,294 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:46,295 INFO L82 PathProgramCache]: Analyzing trace with hash 830944969, now seen corresponding path program 120 times [2021-08-21 11:52:46,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:46,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070798647] [2021-08-21 11:52:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:46,295 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:47,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:47,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:47,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070798647] [2021-08-21 11:52:47,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070798647] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:47,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:47,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:47,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356571337] [2021-08-21 11:52:47,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:47,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:47,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:47,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:47,019 INFO L87 Difference]: Start difference. First operand 2643 states and 7002 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:49,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:49,995 INFO L93 Difference]: Finished difference Result 3152 states and 8061 transitions. [2021-08-21 11:52:49,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:52:49,996 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:49,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:50,000 INFO L225 Difference]: With dead ends: 3152 [2021-08-21 11:52:50,000 INFO L226 Difference]: Without dead ends: 2938 [2021-08-21 11:52:50,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 2418.7ms TimeCoverageRelationStatistics Valid=547, Invalid=2759, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:52:50,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2938 states. [2021-08-21 11:52:50,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2938 to 2619. [2021-08-21 11:52:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2618 states have (on average 2.6524064171122994) internal successors, (6944), 2618 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:50,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 6944 transitions. [2021-08-21 11:52:50,029 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 6944 transitions. Word has length 119 [2021-08-21 11:52:50,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:50,029 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 6944 transitions. [2021-08-21 11:52:50,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 6944 transitions. [2021-08-21 11:52:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:50,032 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:50,032 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:50,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-08-21 11:52:50,032 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:50,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:50,032 INFO L82 PathProgramCache]: Analyzing trace with hash 112907353, now seen corresponding path program 121 times [2021-08-21 11:52:50,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:50,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645074558] [2021-08-21 11:52:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:50,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:50,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:50,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:50,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645074558] [2021-08-21 11:52:50,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645074558] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:50,924 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:50,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:50,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383488110] [2021-08-21 11:52:50,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:50,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:50,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:50,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:50,925 INFO L87 Difference]: Start difference. First operand 2619 states and 6944 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:53,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:53,200 INFO L93 Difference]: Finished difference Result 2826 states and 7375 transitions. [2021-08-21 11:52:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:53,200 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:53,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:53,203 INFO L225 Difference]: With dead ends: 2826 [2021-08-21 11:52:53,203 INFO L226 Difference]: Without dead ends: 2713 [2021-08-21 11:52:53,203 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2045.7ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:53,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2713 states. [2021-08-21 11:52:53,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2713 to 2609. [2021-08-21 11:52:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2608 states have (on average 2.6545245398773005) internal successors, (6923), 2608 states have internal predecessors, (6923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 6923 transitions. [2021-08-21 11:52:53,227 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 6923 transitions. Word has length 119 [2021-08-21 11:52:53,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:53,227 INFO L470 AbstractCegarLoop]: Abstraction has 2609 states and 6923 transitions. [2021-08-21 11:52:53,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:53,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 6923 transitions. [2021-08-21 11:52:53,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:53,229 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:53,229 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:53,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-08-21 11:52:53,229 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:53,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:53,230 INFO L82 PathProgramCache]: Analyzing trace with hash -303064667, now seen corresponding path program 122 times [2021-08-21 11:52:53,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:53,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070557634] [2021-08-21 11:52:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:53,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:53,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:53,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:53,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070557634] [2021-08-21 11:52:53,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070557634] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:53,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:53,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:53,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508967194] [2021-08-21 11:52:53,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:53,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:53,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:53,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:53,885 INFO L87 Difference]: Start difference. First operand 2609 states and 6923 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:56,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:56,097 INFO L93 Difference]: Finished difference Result 2823 states and 7344 transitions. [2021-08-21 11:52:56,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:52:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:56,100 INFO L225 Difference]: With dead ends: 2823 [2021-08-21 11:52:56,100 INFO L226 Difference]: Without dead ends: 2685 [2021-08-21 11:52:56,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1787.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:52:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2021-08-21 11:52:56,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2621. [2021-08-21 11:52:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.650763358778626) internal successors, (6945), 2620 states have internal predecessors, (6945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:56,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6945 transitions. [2021-08-21 11:52:56,126 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6945 transitions. Word has length 119 [2021-08-21 11:52:56,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:56,126 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 6945 transitions. [2021-08-21 11:52:56,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:56,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6945 transitions. [2021-08-21 11:52:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:56,129 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:56,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:56,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-08-21 11:52:56,129 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:56,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:56,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1303168953, now seen corresponding path program 123 times [2021-08-21 11:52:56,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:56,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301755402] [2021-08-21 11:52:56,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:56,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:52:57,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:52:57,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:52:57,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301755402] [2021-08-21 11:52:57,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301755402] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:52:57,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:52:57,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:52:57,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338562320] [2021-08-21 11:52:57,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:52:57,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:52:57,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:52:57,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:52:57,023 INFO L87 Difference]: Start difference. First operand 2621 states and 6945 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:59,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:52:59,723 INFO L93 Difference]: Finished difference Result 2813 states and 7323 transitions. [2021-08-21 11:52:59,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:52:59,723 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:52:59,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:52:59,727 INFO L225 Difference]: With dead ends: 2813 [2021-08-21 11:52:59,727 INFO L226 Difference]: Without dead ends: 2681 [2021-08-21 11:52:59,728 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2400.2ms TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:52:59,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2021-08-21 11:52:59,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2623. [2021-08-21 11:52:59,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2623 states, 2622 states have (on average 2.6498855835240276) internal successors, (6948), 2622 states have internal predecessors, (6948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 6948 transitions. [2021-08-21 11:52:59,753 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 6948 transitions. Word has length 119 [2021-08-21 11:52:59,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:52:59,753 INFO L470 AbstractCegarLoop]: Abstraction has 2623 states and 6948 transitions. [2021-08-21 11:52:59,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:52:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 6948 transitions. [2021-08-21 11:52:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:52:59,756 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:52:59,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:52:59,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-08-21 11:52:59,756 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:52:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:52:59,756 INFO L82 PathProgramCache]: Analyzing trace with hash 676682851, now seen corresponding path program 124 times [2021-08-21 11:52:59,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:52:59,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389834330] [2021-08-21 11:52:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:52:59,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:52:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:00,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:00,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389834330] [2021-08-21 11:53:00,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389834330] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:00,722 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:00,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:00,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15149160] [2021-08-21 11:53:00,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:00,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:00,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:00,723 INFO L87 Difference]: Start difference. First operand 2623 states and 6948 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:03,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:03,371 INFO L93 Difference]: Finished difference Result 2879 states and 7461 transitions. [2021-08-21 11:53:03,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:53:03,371 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:03,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:03,375 INFO L225 Difference]: With dead ends: 2879 [2021-08-21 11:53:03,375 INFO L226 Difference]: Without dead ends: 2726 [2021-08-21 11:53:03,375 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 2296.3ms TimeCoverageRelationStatistics Valid=446, Invalid=2310, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:53:03,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2726 states. [2021-08-21 11:53:03,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2726 to 2615. [2021-08-21 11:53:03,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.652639632746748) internal successors, (6934), 2614 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6934 transitions. [2021-08-21 11:53:03,399 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6934 transitions. Word has length 119 [2021-08-21 11:53:03,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:03,399 INFO L470 AbstractCegarLoop]: Abstraction has 2615 states and 6934 transitions. [2021-08-21 11:53:03,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:03,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6934 transitions. [2021-08-21 11:53:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:03,402 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:03,402 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:03,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-08-21 11:53:03,402 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:03,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:03,402 INFO L82 PathProgramCache]: Analyzing trace with hash -413065291, now seen corresponding path program 125 times [2021-08-21 11:53:03,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:03,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874595105] [2021-08-21 11:53:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:03,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:03,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:04,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:04,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874595105] [2021-08-21 11:53:04,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874595105] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:04,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:04,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:04,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624549852] [2021-08-21 11:53:04,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:04,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:04,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:04,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:04,352 INFO L87 Difference]: Start difference. First operand 2615 states and 6934 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:06,885 INFO L93 Difference]: Finished difference Result 2770 states and 7235 transitions. [2021-08-21 11:53:06,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:53:06,885 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:06,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:06,889 INFO L225 Difference]: With dead ends: 2770 [2021-08-21 11:53:06,889 INFO L226 Difference]: Without dead ends: 2663 [2021-08-21 11:53:06,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2248.0ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:53:06,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2021-08-21 11:53:06,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2611. [2021-08-21 11:53:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2610 states have (on average 2.653639846743295) internal successors, (6926), 2610 states have internal predecessors, (6926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 6926 transitions. [2021-08-21 11:53:06,915 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 6926 transitions. Word has length 119 [2021-08-21 11:53:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:06,915 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 6926 transitions. [2021-08-21 11:53:06,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 6926 transitions. [2021-08-21 11:53:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:06,918 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:06,918 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:06,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-08-21 11:53:06,918 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:06,918 INFO L82 PathProgramCache]: Analyzing trace with hash -799492407, now seen corresponding path program 126 times [2021-08-21 11:53:06,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:06,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634376140] [2021-08-21 11:53:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:06,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:06,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:07,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:07,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634376140] [2021-08-21 11:53:07,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634376140] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:07,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:07,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:07,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55292645] [2021-08-21 11:53:07,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:07,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:07,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:07,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:07,625 INFO L87 Difference]: Start difference. First operand 2611 states and 6926 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:09,690 INFO L93 Difference]: Finished difference Result 2801 states and 7301 transitions. [2021-08-21 11:53:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:53:09,690 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:09,694 INFO L225 Difference]: With dead ends: 2801 [2021-08-21 11:53:09,694 INFO L226 Difference]: Without dead ends: 2663 [2021-08-21 11:53:09,695 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 1743.1ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:53:09,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2021-08-21 11:53:09,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2615. [2021-08-21 11:53:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2615 states, 2614 states have (on average 2.652639632746748) internal successors, (6934), 2614 states have internal predecessors, (6934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:09,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2615 states to 2615 states and 6934 transitions. [2021-08-21 11:53:09,725 INFO L78 Accepts]: Start accepts. Automaton has 2615 states and 6934 transitions. Word has length 119 [2021-08-21 11:53:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:09,725 INFO L470 AbstractCegarLoop]: Abstraction has 2615 states and 6934 transitions. [2021-08-21 11:53:09,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:09,725 INFO L276 IsEmpty]: Start isEmpty. Operand 2615 states and 6934 transitions. [2021-08-21 11:53:09,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:09,728 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:09,728 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:09,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-08-21 11:53:09,728 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:09,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1556991365, now seen corresponding path program 127 times [2021-08-21 11:53:09,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:09,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642875853] [2021-08-21 11:53:09,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:09,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:10,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:10,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:10,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642875853] [2021-08-21 11:53:10,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642875853] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:10,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:10,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:10,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587983158] [2021-08-21 11:53:10,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:10,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:10,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:10,558 INFO L87 Difference]: Start difference. First operand 2615 states and 6934 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:12,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:12,942 INFO L93 Difference]: Finished difference Result 2760 states and 7220 transitions. [2021-08-21 11:53:12,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:53:12,943 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:12,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:12,946 INFO L225 Difference]: With dead ends: 2760 [2021-08-21 11:53:12,946 INFO L226 Difference]: Without dead ends: 2655 [2021-08-21 11:53:12,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2080.6ms TimeCoverageRelationStatistics Valid=443, Invalid=2209, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:53:12,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2655 states. [2021-08-21 11:53:12,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2655 to 2619. [2021-08-21 11:53:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2619 states, 2618 states have (on average 2.6501145912910617) internal successors, (6938), 2618 states have internal predecessors, (6938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:12,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2619 states to 2619 states and 6938 transitions. [2021-08-21 11:53:12,973 INFO L78 Accepts]: Start accepts. Automaton has 2619 states and 6938 transitions. Word has length 119 [2021-08-21 11:53:12,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:12,973 INFO L470 AbstractCegarLoop]: Abstraction has 2619 states and 6938 transitions. [2021-08-21 11:53:12,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 2619 states and 6938 transitions. [2021-08-21 11:53:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:12,975 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:12,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:12,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-08-21 11:53:12,975 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:12,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:12,976 INFO L82 PathProgramCache]: Analyzing trace with hash 2076435595, now seen corresponding path program 128 times [2021-08-21 11:53:12,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:12,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575776620] [2021-08-21 11:53:12,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:12,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:13,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:13,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575776620] [2021-08-21 11:53:13,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575776620] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:13,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:13,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:13,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060207251] [2021-08-21 11:53:13,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:13,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:13,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:13,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:13,864 INFO L87 Difference]: Start difference. First operand 2619 states and 6938 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:16,374 INFO L93 Difference]: Finished difference Result 2794 states and 7291 transitions. [2021-08-21 11:53:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:53:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:16,378 INFO L225 Difference]: With dead ends: 2794 [2021-08-21 11:53:16,378 INFO L226 Difference]: Without dead ends: 2689 [2021-08-21 11:53:16,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2206.3ms TimeCoverageRelationStatistics Valid=448, Invalid=2308, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:53:16,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2689 states. [2021-08-21 11:53:16,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2689 to 2621. [2021-08-21 11:53:16,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.649236641221374) internal successors, (6941), 2620 states have internal predecessors, (6941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6941 transitions. [2021-08-21 11:53:16,403 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6941 transitions. Word has length 119 [2021-08-21 11:53:16,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:16,403 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 6941 transitions. [2021-08-21 11:53:16,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:16,403 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6941 transitions. [2021-08-21 11:53:16,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:16,406 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:16,406 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:16,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-08-21 11:53:16,406 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:16,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:16,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1662667199, now seen corresponding path program 129 times [2021-08-21 11:53:16,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:16,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312352274] [2021-08-21 11:53:16,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:16,406 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:17,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:17,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312352274] [2021-08-21 11:53:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312352274] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:17,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:17,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50250901] [2021-08-21 11:53:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:17,283 INFO L87 Difference]: Start difference. First operand 2621 states and 6941 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:19,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:19,684 INFO L93 Difference]: Finished difference Result 2750 states and 7195 transitions. [2021-08-21 11:53:19,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:53:19,684 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:19,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:19,688 INFO L225 Difference]: With dead ends: 2750 [2021-08-21 11:53:19,688 INFO L226 Difference]: Without dead ends: 2593 [2021-08-21 11:53:19,688 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2180.4ms TimeCoverageRelationStatistics Valid=444, Invalid=2208, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:53:19,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2021-08-21 11:53:19,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2561. [2021-08-21 11:53:19,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.65859375) internal successors, (6806), 2560 states have internal predecessors, (6806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6806 transitions. [2021-08-21 11:53:19,713 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6806 transitions. Word has length 119 [2021-08-21 11:53:19,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:19,713 INFO L470 AbstractCegarLoop]: Abstraction has 2561 states and 6806 transitions. [2021-08-21 11:53:19,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:19,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6806 transitions. [2021-08-21 11:53:19,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:19,716 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:19,716 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:19,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-08-21 11:53:19,716 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:19,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:19,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1906018851, now seen corresponding path program 130 times [2021-08-21 11:53:19,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:19,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688042298] [2021-08-21 11:53:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:19,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:20,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:20,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688042298] [2021-08-21 11:53:20,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688042298] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:20,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:20,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:53:20,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656437909] [2021-08-21 11:53:20,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:53:20,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:20,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:53:20,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:53:20,011 INFO L87 Difference]: Start difference. First operand 2561 states and 6806 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:20,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:20,541 INFO L93 Difference]: Finished difference Result 3084 states and 7986 transitions. [2021-08-21 11:53:20,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:53:20,542 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:20,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:20,545 INFO L225 Difference]: With dead ends: 3084 [2021-08-21 11:53:20,545 INFO L226 Difference]: Without dead ends: 3084 [2021-08-21 11:53:20,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 394.0ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:20,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-08-21 11:53:20,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2621. [2021-08-21 11:53:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 2620 states have (on average 2.6412213740458017) internal successors, (6920), 2620 states have internal predecessors, (6920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:20,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 6920 transitions. [2021-08-21 11:53:20,573 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 6920 transitions. Word has length 119 [2021-08-21 11:53:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:20,573 INFO L470 AbstractCegarLoop]: Abstraction has 2621 states and 6920 transitions. [2021-08-21 11:53:20,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:20,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 6920 transitions. [2021-08-21 11:53:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:20,575 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:20,576 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:20,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-08-21 11:53:20,576 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:20,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:20,576 INFO L82 PathProgramCache]: Analyzing trace with hash 560686199, now seen corresponding path program 131 times [2021-08-21 11:53:20,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:20,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469613451] [2021-08-21 11:53:20,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:20,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:21,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:21,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:21,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469613451] [2021-08-21 11:53:21,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469613451] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:21,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:21,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:21,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124903488] [2021-08-21 11:53:21,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:21,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:21,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:21,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:21,588 INFO L87 Difference]: Start difference. First operand 2621 states and 6920 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:24,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:24,497 INFO L93 Difference]: Finished difference Result 3547 states and 9258 transitions. [2021-08-21 11:53:24,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:53:24,498 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:24,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:24,502 INFO L225 Difference]: With dead ends: 3547 [2021-08-21 11:53:24,502 INFO L226 Difference]: Without dead ends: 3375 [2021-08-21 11:53:24,502 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2468.3ms TimeCoverageRelationStatistics Valid=652, Invalid=3130, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:53:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3375 states. [2021-08-21 11:53:24,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3375 to 2881. [2021-08-21 11:53:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2880 states have (on average 2.6649305555555554) internal successors, (7675), 2880 states have internal predecessors, (7675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:24,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 7675 transitions. [2021-08-21 11:53:24,531 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 7675 transitions. Word has length 119 [2021-08-21 11:53:24,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:24,531 INFO L470 AbstractCegarLoop]: Abstraction has 2881 states and 7675 transitions. [2021-08-21 11:53:24,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:24,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 7675 transitions. [2021-08-21 11:53:24,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:24,533 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:24,533 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:24,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-08-21 11:53:24,534 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:24,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:24,534 INFO L82 PathProgramCache]: Analyzing trace with hash -420558853, now seen corresponding path program 132 times [2021-08-21 11:53:24,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:24,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314138679] [2021-08-21 11:53:24,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:24,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:24,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:25,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:25,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314138679] [2021-08-21 11:53:25,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314138679] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:25,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:25,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:25,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85357035] [2021-08-21 11:53:25,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:25,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:25,417 INFO L87 Difference]: Start difference. First operand 2881 states and 7675 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:28,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:28,244 INFO L93 Difference]: Finished difference Result 4165 states and 10858 transitions. [2021-08-21 11:53:28,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:53:28,245 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:28,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:28,250 INFO L225 Difference]: With dead ends: 4165 [2021-08-21 11:53:28,250 INFO L226 Difference]: Without dead ends: 3995 [2021-08-21 11:53:28,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 2320.4ms TimeCoverageRelationStatistics Valid=597, Invalid=3185, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:53:28,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2021-08-21 11:53:28,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3145. [2021-08-21 11:53:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3145 states, 3144 states have (on average 2.6631679389312977) internal successors, (8373), 3144 states have internal predecessors, (8373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3145 states to 3145 states and 8373 transitions. [2021-08-21 11:53:28,285 INFO L78 Accepts]: Start accepts. Automaton has 3145 states and 8373 transitions. Word has length 119 [2021-08-21 11:53:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:28,286 INFO L470 AbstractCegarLoop]: Abstraction has 3145 states and 8373 transitions. [2021-08-21 11:53:28,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 3145 states and 8373 transitions. [2021-08-21 11:53:28,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:28,289 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:28,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:28,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-08-21 11:53:28,289 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:28,289 INFO L82 PathProgramCache]: Analyzing trace with hash 360934051, now seen corresponding path program 133 times [2021-08-21 11:53:28,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:28,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071110645] [2021-08-21 11:53:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:28,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:29,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:29,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:29,077 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071110645] [2021-08-21 11:53:29,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071110645] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:29,077 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:29,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:29,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846160792] [2021-08-21 11:53:29,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:29,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:29,077 INFO L87 Difference]: Start difference. First operand 3145 states and 8373 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:32,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:32,219 INFO L93 Difference]: Finished difference Result 4433 states and 11604 transitions. [2021-08-21 11:53:32,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:53:32,220 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:32,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:32,225 INFO L225 Difference]: With dead ends: 4433 [2021-08-21 11:53:32,225 INFO L226 Difference]: Without dead ends: 4042 [2021-08-21 11:53:32,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 2595.3ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:53:32,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2021-08-21 11:53:32,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 3205. [2021-08-21 11:53:32,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3205 states, 3204 states have (on average 2.647003745318352) internal successors, (8481), 3204 states have internal predecessors, (8481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:32,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3205 states to 3205 states and 8481 transitions. [2021-08-21 11:53:32,258 INFO L78 Accepts]: Start accepts. Automaton has 3205 states and 8481 transitions. Word has length 119 [2021-08-21 11:53:32,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:32,258 INFO L470 AbstractCegarLoop]: Abstraction has 3205 states and 8481 transitions. [2021-08-21 11:53:32,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:32,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3205 states and 8481 transitions. [2021-08-21 11:53:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:32,261 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:32,261 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:32,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-08-21 11:53:32,261 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:32,261 INFO L82 PathProgramCache]: Analyzing trace with hash -401249699, now seen corresponding path program 134 times [2021-08-21 11:53:32,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:32,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929157572] [2021-08-21 11:53:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:32,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:33,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:33,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929157572] [2021-08-21 11:53:33,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929157572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:33,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:33,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:33,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091598016] [2021-08-21 11:53:33,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:33,122 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:33,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:33,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:33,123 INFO L87 Difference]: Start difference. First operand 3205 states and 8481 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:36,630 INFO L93 Difference]: Finished difference Result 4148 states and 10797 transitions. [2021-08-21 11:53:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:53:36,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:36,635 INFO L225 Difference]: With dead ends: 4148 [2021-08-21 11:53:36,635 INFO L226 Difference]: Without dead ends: 3706 [2021-08-21 11:53:36,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2946.6ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:53:36,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2021-08-21 11:53:36,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 2869. [2021-08-21 11:53:36,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2868 states have (on average 2.6471408647140864) internal successors, (7592), 2868 states have internal predecessors, (7592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 7592 transitions. [2021-08-21 11:53:36,667 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 7592 transitions. Word has length 119 [2021-08-21 11:53:36,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:36,667 INFO L470 AbstractCegarLoop]: Abstraction has 2869 states and 7592 transitions. [2021-08-21 11:53:36,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:36,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 7592 transitions. [2021-08-21 11:53:36,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:36,670 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:36,670 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:36,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-08-21 11:53:36,670 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:36,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:36,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1451100469, now seen corresponding path program 135 times [2021-08-21 11:53:36,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:36,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778336300] [2021-08-21 11:53:36,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:36,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:37,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:37,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778336300] [2021-08-21 11:53:37,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778336300] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:37,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:37,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:37,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213877872] [2021-08-21 11:53:37,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:37,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:37,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:37,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:37,712 INFO L87 Difference]: Start difference. First operand 2869 states and 7592 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:40,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:40,026 INFO L93 Difference]: Finished difference Result 3355 states and 8658 transitions. [2021-08-21 11:53:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:53:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:40,030 INFO L225 Difference]: With dead ends: 3355 [2021-08-21 11:53:40,030 INFO L226 Difference]: Without dead ends: 3141 [2021-08-21 11:53:40,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2092.1ms TimeCoverageRelationStatistics Valid=625, Invalid=3035, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:53:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3141 states. [2021-08-21 11:53:40,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3141 to 2865. [2021-08-21 11:53:40,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.6452513966480447) internal successors, (7576), 2864 states have internal predecessors, (7576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:40,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7576 transitions. [2021-08-21 11:53:40,057 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7576 transitions. Word has length 119 [2021-08-21 11:53:40,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:40,057 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7576 transitions. [2021-08-21 11:53:40,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7576 transitions. [2021-08-21 11:53:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:40,059 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:40,059 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:40,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-08-21 11:53:40,060 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:40,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1696243865, now seen corresponding path program 136 times [2021-08-21 11:53:40,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:40,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917489406] [2021-08-21 11:53:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:40,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:40,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:40,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917489406] [2021-08-21 11:53:40,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917489406] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:40,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:40,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:40,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005685398] [2021-08-21 11:53:40,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:40,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:40,965 INFO L87 Difference]: Start difference. First operand 2865 states and 7576 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:43,506 INFO L93 Difference]: Finished difference Result 3233 states and 8442 transitions. [2021-08-21 11:53:43,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:53:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:43,511 INFO L225 Difference]: With dead ends: 3233 [2021-08-21 11:53:43,511 INFO L226 Difference]: Without dead ends: 3101 [2021-08-21 11:53:43,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 2201.0ms TimeCoverageRelationStatistics Valid=527, Invalid=2665, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:53:43,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2021-08-21 11:53:43,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 2865. [2021-08-21 11:53:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2865 states, 2864 states have (on average 2.6449022346368714) internal successors, (7575), 2864 states have internal predecessors, (7575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:43,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2865 states to 2865 states and 7575 transitions. [2021-08-21 11:53:43,539 INFO L78 Accepts]: Start accepts. Automaton has 2865 states and 7575 transitions. Word has length 119 [2021-08-21 11:53:43,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:43,540 INFO L470 AbstractCegarLoop]: Abstraction has 2865 states and 7575 transitions. [2021-08-21 11:53:43,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:43,540 INFO L276 IsEmpty]: Start isEmpty. Operand 2865 states and 7575 transitions. [2021-08-21 11:53:43,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:43,542 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:43,542 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:43,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-08-21 11:53:43,542 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:43,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:43,543 INFO L82 PathProgramCache]: Analyzing trace with hash 714998813, now seen corresponding path program 137 times [2021-08-21 11:53:43,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:43,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892816697] [2021-08-21 11:53:43,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:43,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:43,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:44,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:44,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:44,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892816697] [2021-08-21 11:53:44,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892816697] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:44,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:44,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:44,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498598785] [2021-08-21 11:53:44,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:44,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:44,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:44,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:44,568 INFO L87 Difference]: Start difference. First operand 2865 states and 7575 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:47,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:47,117 INFO L93 Difference]: Finished difference Result 3483 states and 9072 transitions. [2021-08-21 11:53:47,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:53:47,117 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:47,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:47,121 INFO L225 Difference]: With dead ends: 3483 [2021-08-21 11:53:47,121 INFO L226 Difference]: Without dead ends: 3353 [2021-08-21 11:53:47,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 2209.8ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:53:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3353 states. [2021-08-21 11:53:47,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3353 to 3033. [2021-08-21 11:53:47,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3032 states have (on average 2.6362137203166225) internal successors, (7993), 3032 states have internal predecessors, (7993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 7993 transitions. [2021-08-21 11:53:47,149 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 7993 transitions. Word has length 119 [2021-08-21 11:53:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:47,149 INFO L470 AbstractCegarLoop]: Abstraction has 3033 states and 7993 transitions. [2021-08-21 11:53:47,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:47,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 7993 transitions. [2021-08-21 11:53:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:47,152 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:47,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:47,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-08-21 11:53:47,152 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:47,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1496491717, now seen corresponding path program 138 times [2021-08-21 11:53:47,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:47,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421811335] [2021-08-21 11:53:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:47,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:47,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:47,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421811335] [2021-08-21 11:53:47,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421811335] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:47,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:47,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:47,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752568471] [2021-08-21 11:53:47,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:47,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:47,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:47,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:47,970 INFO L87 Difference]: Start difference. First operand 3033 states and 7993 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:50,574 INFO L93 Difference]: Finished difference Result 3657 states and 9478 transitions. [2021-08-21 11:53:50,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:53:50,574 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:50,579 INFO L225 Difference]: With dead ends: 3657 [2021-08-21 11:53:50,579 INFO L226 Difference]: Without dead ends: 3406 [2021-08-21 11:53:50,580 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 482 ImplicationChecksByTransitivity, 2254.9ms TimeCoverageRelationStatistics Valid=518, Invalid=2562, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:53:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3406 states. [2021-08-21 11:53:50,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3406 to 3069. [2021-08-21 11:53:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3069 states, 3068 states have (on average 2.6248370273794004) internal successors, (8053), 3068 states have internal predecessors, (8053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3069 states to 3069 states and 8053 transitions. [2021-08-21 11:53:50,609 INFO L78 Accepts]: Start accepts. Automaton has 3069 states and 8053 transitions. Word has length 119 [2021-08-21 11:53:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:50,609 INFO L470 AbstractCegarLoop]: Abstraction has 3069 states and 8053 transitions. [2021-08-21 11:53:50,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:50,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3069 states and 8053 transitions. [2021-08-21 11:53:50,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:50,612 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:50,612 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:50,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-08-21 11:53:50,613 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:50,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:50,613 INFO L82 PathProgramCache]: Analyzing trace with hash 734307967, now seen corresponding path program 139 times [2021-08-21 11:53:50,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:50,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134126640] [2021-08-21 11:53:50,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:50,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:51,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:51,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134126640] [2021-08-21 11:53:51,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134126640] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:51,443 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:51,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:53:51,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661609880] [2021-08-21 11:53:51,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:53:51,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:51,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:53:51,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:53:51,444 INFO L87 Difference]: Start difference. First operand 3069 states and 8053 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:53,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:53,687 INFO L93 Difference]: Finished difference Result 3488 states and 9021 transitions. [2021-08-21 11:53:53,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:53:53,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:53,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:53,692 INFO L225 Difference]: With dead ends: 3488 [2021-08-21 11:53:53,692 INFO L226 Difference]: Without dead ends: 3190 [2021-08-21 11:53:53,692 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 1944.2ms TimeCoverageRelationStatistics Valid=520, Invalid=2672, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:53:53,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3190 states. [2021-08-21 11:53:53,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3190 to 2853. [2021-08-21 11:53:53,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 2.643758765778401) internal successors, (7540), 2852 states have internal predecessors, (7540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 7540 transitions. [2021-08-21 11:53:53,724 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 7540 transitions. Word has length 119 [2021-08-21 11:53:53,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:53,724 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 7540 transitions. [2021-08-21 11:53:53,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 7540 transitions. [2021-08-21 11:53:53,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:53,726 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:53,726 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:53,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-08-21 11:53:53,726 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:53,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:53,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1294568493, now seen corresponding path program 140 times [2021-08-21 11:53:53,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:53,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36312945] [2021-08-21 11:53:53,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:53,727 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:54,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:54,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:54,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36312945] [2021-08-21 11:53:54,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36312945] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:54,768 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:54,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:54,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160542652] [2021-08-21 11:53:54,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:54,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:54,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:54,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:54,769 INFO L87 Difference]: Start difference. First operand 2853 states and 7540 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:57,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:53:57,547 INFO L93 Difference]: Finished difference Result 3271 states and 8521 transitions. [2021-08-21 11:53:57,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:53:57,547 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:53:57,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:53:57,551 INFO L225 Difference]: With dead ends: 3271 [2021-08-21 11:53:57,551 INFO L226 Difference]: Without dead ends: 3139 [2021-08-21 11:53:57,552 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 2328.5ms TimeCoverageRelationStatistics Valid=527, Invalid=2665, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:53:57,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2021-08-21 11:53:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 2855. [2021-08-21 11:53:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2854 states have (on average 2.642957252978276) internal successors, (7543), 2854 states have internal predecessors, (7543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 7543 transitions. [2021-08-21 11:53:57,578 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 7543 transitions. Word has length 119 [2021-08-21 11:53:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:53:57,578 INFO L470 AbstractCegarLoop]: Abstraction has 2855 states and 7543 transitions. [2021-08-21 11:53:57,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:53:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 7543 transitions. [2021-08-21 11:53:57,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:53:57,581 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:53:57,581 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:53:57,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-08-21 11:53:57,581 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:53:57,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:53:57,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1020546999, now seen corresponding path program 141 times [2021-08-21 11:53:57,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:53:57,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839787533] [2021-08-21 11:53:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:53:57,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:53:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:53:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:53:58,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:53:58,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839787533] [2021-08-21 11:53:58,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839787533] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:53:58,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:53:58,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:53:58,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332714924] [2021-08-21 11:53:58,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:53:58,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:53:58,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:53:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:53:58,613 INFO L87 Difference]: Start difference. First operand 2855 states and 7543 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:01,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:01,382 INFO L93 Difference]: Finished difference Result 3450 states and 8879 transitions. [2021-08-21 11:54:01,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:54:01,382 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:01,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:01,387 INFO L225 Difference]: With dead ends: 3450 [2021-08-21 11:54:01,387 INFO L226 Difference]: Without dead ends: 3303 [2021-08-21 11:54:01,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 2336.2ms TimeCoverageRelationStatistics Valid=581, Invalid=2959, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:54:01,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-08-21 11:54:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 2853. [2021-08-21 11:54:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 2.6434081346423564) internal successors, (7539), 2852 states have internal predecessors, (7539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 7539 transitions. [2021-08-21 11:54:01,416 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 7539 transitions. Word has length 119 [2021-08-21 11:54:01,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:01,416 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 7539 transitions. [2021-08-21 11:54:01,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:01,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 7539 transitions. [2021-08-21 11:54:01,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:01,419 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:01,419 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:01,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-08-21 11:54:01,419 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:01,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:01,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1374372539, now seen corresponding path program 142 times [2021-08-21 11:54:01,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:01,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82273592] [2021-08-21 11:54:01,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:01,420 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:02,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:02,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82273592] [2021-08-21 11:54:02,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82273592] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:02,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:02,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:02,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348693352] [2021-08-21 11:54:02,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:02,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:02,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:02,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:02,439 INFO L87 Difference]: Start difference. First operand 2853 states and 7539 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:05,346 INFO L93 Difference]: Finished difference Result 3901 states and 10042 transitions. [2021-08-21 11:54:05,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:54:05,346 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:05,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:05,350 INFO L225 Difference]: With dead ends: 3901 [2021-08-21 11:54:05,351 INFO L226 Difference]: Without dead ends: 3756 [2021-08-21 11:54:05,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 2414.2ms TimeCoverageRelationStatistics Valid=540, Invalid=3000, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:54:05,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3756 states. [2021-08-21 11:54:05,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3756 to 2853. [2021-08-21 11:54:05,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 2.6416549789621318) internal successors, (7534), 2852 states have internal predecessors, (7534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 7534 transitions. [2021-08-21 11:54:05,380 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 7534 transitions. Word has length 119 [2021-08-21 11:54:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:05,380 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 7534 transitions. [2021-08-21 11:54:05,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 7534 transitions. [2021-08-21 11:54:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:05,383 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:05,383 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:05,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-08-21 11:54:05,383 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:05,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:05,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1286365879, now seen corresponding path program 143 times [2021-08-21 11:54:05,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:05,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076299010] [2021-08-21 11:54:05,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:05,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:06,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:06,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076299010] [2021-08-21 11:54:06,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076299010] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:06,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:06,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:06,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181097581] [2021-08-21 11:54:06,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:06,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:06,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:06,310 INFO L87 Difference]: Start difference. First operand 2853 states and 7534 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:08,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:08,978 INFO L93 Difference]: Finished difference Result 3944 states and 10254 transitions. [2021-08-21 11:54:08,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:54:08,978 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:08,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:08,983 INFO L225 Difference]: With dead ends: 3944 [2021-08-21 11:54:08,983 INFO L226 Difference]: Without dead ends: 3814 [2021-08-21 11:54:08,984 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 2202.1ms TimeCoverageRelationStatistics Valid=497, Invalid=2695, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:54:08,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2021-08-21 11:54:09,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 2997. [2021-08-21 11:54:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2997 states, 2996 states have (on average 2.6381842456608813) internal successors, (7904), 2996 states have internal predecessors, (7904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:09,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2997 states to 2997 states and 7904 transitions. [2021-08-21 11:54:09,015 INFO L78 Accepts]: Start accepts. Automaton has 2997 states and 7904 transitions. Word has length 119 [2021-08-21 11:54:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:09,015 INFO L470 AbstractCegarLoop]: Abstraction has 2997 states and 7904 transitions. [2021-08-21 11:54:09,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:09,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2997 states and 7904 transitions. [2021-08-21 11:54:09,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:09,018 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:09,018 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:09,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-08-21 11:54:09,018 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:09,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:09,018 INFO L82 PathProgramCache]: Analyzing trace with hash -504872975, now seen corresponding path program 144 times [2021-08-21 11:54:09,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:09,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872645412] [2021-08-21 11:54:09,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:09,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:09,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:09,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:09,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872645412] [2021-08-21 11:54:09,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872645412] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:09,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:09,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:09,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265692763] [2021-08-21 11:54:09,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:09,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:09,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:09,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:09,968 INFO L87 Difference]: Start difference. First operand 2997 states and 7904 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:12,679 INFO L93 Difference]: Finished difference Result 4118 states and 10660 transitions. [2021-08-21 11:54:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:54:12,680 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:12,684 INFO L225 Difference]: With dead ends: 4118 [2021-08-21 11:54:12,684 INFO L226 Difference]: Without dead ends: 3867 [2021-08-21 11:54:12,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2294.4ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:54:12,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2021-08-21 11:54:12,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3033. [2021-08-21 11:54:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 3032 states have (on average 2.6266490765171504) internal successors, (7964), 3032 states have internal predecessors, (7964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 7964 transitions. [2021-08-21 11:54:12,715 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 7964 transitions. Word has length 119 [2021-08-21 11:54:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:12,715 INFO L470 AbstractCegarLoop]: Abstraction has 3033 states and 7964 transitions. [2021-08-21 11:54:12,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:12,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 7964 transitions. [2021-08-21 11:54:12,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:12,718 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:12,718 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:12,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-08-21 11:54:12,718 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:12,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:12,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1267056725, now seen corresponding path program 145 times [2021-08-21 11:54:12,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:12,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596048443] [2021-08-21 11:54:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:12,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:13,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:13,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596048443] [2021-08-21 11:54:13,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596048443] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:13,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:13,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:13,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633481213] [2021-08-21 11:54:13,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:13,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:13,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:13,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:13,575 INFO L87 Difference]: Start difference. First operand 3033 states and 7964 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:16,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:16,583 INFO L93 Difference]: Finished difference Result 3949 states and 10203 transitions. [2021-08-21 11:54:16,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:54:16,584 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:16,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:16,589 INFO L225 Difference]: With dead ends: 3949 [2021-08-21 11:54:16,589 INFO L226 Difference]: Without dead ends: 3591 [2021-08-21 11:54:16,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 508 ImplicationChecksByTransitivity, 2515.1ms TimeCoverageRelationStatistics Valid=509, Invalid=2683, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:54:16,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2021-08-21 11:54:16,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 2757. [2021-08-21 11:54:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2757 states, 2756 states have (on average 2.6444121915820027) internal successors, (7288), 2756 states have internal predecessors, (7288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:16,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 7288 transitions. [2021-08-21 11:54:16,618 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 7288 transitions. Word has length 119 [2021-08-21 11:54:16,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:16,618 INFO L470 AbstractCegarLoop]: Abstraction has 2757 states and 7288 transitions. [2021-08-21 11:54:16,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:16,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 7288 transitions. [2021-08-21 11:54:16,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:16,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:16,620 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:16,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-08-21 11:54:16,621 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:16,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:16,621 INFO L82 PathProgramCache]: Analyzing trace with hash -447660137, now seen corresponding path program 146 times [2021-08-21 11:54:16,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:16,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202831095] [2021-08-21 11:54:16,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:16,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:17,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:17,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202831095] [2021-08-21 11:54:17,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202831095] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:17,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:17,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:17,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439396702] [2021-08-21 11:54:17,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:17,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:17,616 INFO L87 Difference]: Start difference. First operand 2757 states and 7288 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:20,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:20,713 INFO L93 Difference]: Finished difference Result 3171 states and 8144 transitions. [2021-08-21 11:54:20,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:54:20,713 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:20,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:20,718 INFO L225 Difference]: With dead ends: 3171 [2021-08-21 11:54:20,718 INFO L226 Difference]: Without dead ends: 2993 [2021-08-21 11:54:20,718 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2579.2ms TimeCoverageRelationStatistics Valid=625, Invalid=3035, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:54:20,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2993 states. [2021-08-21 11:54:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2993 to 2765. [2021-08-21 11:54:20,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2764 states have (on average 2.641823444283647) internal successors, (7302), 2764 states have internal predecessors, (7302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 7302 transitions. [2021-08-21 11:54:20,762 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 7302 transitions. Word has length 119 [2021-08-21 11:54:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:20,762 INFO L470 AbstractCegarLoop]: Abstraction has 2765 states and 7302 transitions. [2021-08-21 11:54:20,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 7302 transitions. [2021-08-21 11:54:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:20,764 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:20,764 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:20,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-08-21 11:54:20,765 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:20,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:20,765 INFO L82 PathProgramCache]: Analyzing trace with hash -941276071, now seen corresponding path program 147 times [2021-08-21 11:54:20,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:20,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351493371] [2021-08-21 11:54:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:20,765 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:21,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:21,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351493371] [2021-08-21 11:54:21,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351493371] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:21,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:21,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:21,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746405472] [2021-08-21 11:54:21,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:21,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:21,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:21,947 INFO L87 Difference]: Start difference. First operand 2765 states and 7302 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:24,784 INFO L93 Difference]: Finished difference Result 2997 states and 7774 transitions. [2021-08-21 11:54:24,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:54:24,784 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:24,788 INFO L225 Difference]: With dead ends: 2997 [2021-08-21 11:54:24,788 INFO L226 Difference]: Without dead ends: 2865 [2021-08-21 11:54:24,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2429.7ms TimeCoverageRelationStatistics Valid=505, Invalid=2575, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:54:24,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2865 states. [2021-08-21 11:54:24,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2865 to 2767. [2021-08-21 11:54:24,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2767 states, 2766 states have (on average 2.640997830802603) internal successors, (7305), 2766 states have internal predecessors, (7305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:24,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2767 states to 2767 states and 7305 transitions. [2021-08-21 11:54:24,816 INFO L78 Accepts]: Start accepts. Automaton has 2767 states and 7305 transitions. Word has length 119 [2021-08-21 11:54:24,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:24,816 INFO L470 AbstractCegarLoop]: Abstraction has 2767 states and 7305 transitions. [2021-08-21 11:54:24,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2767 states and 7305 transitions. [2021-08-21 11:54:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:24,819 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:24,819 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:24,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-08-21 11:54:24,819 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:24,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:24,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1038575733, now seen corresponding path program 148 times [2021-08-21 11:54:24,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:24,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606168125] [2021-08-21 11:54:24,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:24,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:25,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:25,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606168125] [2021-08-21 11:54:25,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606168125] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:25,653 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:25,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:25,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269176568] [2021-08-21 11:54:25,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:25,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:25,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:25,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:25,654 INFO L87 Difference]: Start difference. First operand 2767 states and 7305 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:27,898 INFO L93 Difference]: Finished difference Result 3164 states and 8102 transitions. [2021-08-21 11:54:27,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:54:27,899 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:27,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:27,903 INFO L225 Difference]: With dead ends: 3164 [2021-08-21 11:54:27,903 INFO L226 Difference]: Without dead ends: 2975 [2021-08-21 11:54:27,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 601 ImplicationChecksByTransitivity, 1874.1ms TimeCoverageRelationStatistics Valid=558, Invalid=2864, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:54:27,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-08-21 11:54:27,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2723. [2021-08-21 11:54:27,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 2722 states have (on average 2.6520940484937547) internal successors, (7219), 2722 states have internal predecessors, (7219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:27,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 7219 transitions. [2021-08-21 11:54:27,933 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 7219 transitions. Word has length 119 [2021-08-21 11:54:27,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:27,933 INFO L470 AbstractCegarLoop]: Abstraction has 2723 states and 7219 transitions. [2021-08-21 11:54:27,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:27,933 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 7219 transitions. [2021-08-21 11:54:27,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:27,935 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:27,935 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:27,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-08-21 11:54:27,936 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:27,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:27,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1322334627, now seen corresponding path program 149 times [2021-08-21 11:54:27,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:27,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344850030] [2021-08-21 11:54:27,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:27,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:28,221 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:28,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344850030] [2021-08-21 11:54:28,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344850030] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:28,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:28,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:54:28,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345420408] [2021-08-21 11:54:28,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:54:28,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:54:28,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:54:28,222 INFO L87 Difference]: Start difference. First operand 2723 states and 7219 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:28,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:28,718 INFO L93 Difference]: Finished difference Result 3358 states and 8448 transitions. [2021-08-21 11:54:28,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:54:28,719 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:28,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:28,722 INFO L225 Difference]: With dead ends: 3358 [2021-08-21 11:54:28,722 INFO L226 Difference]: Without dead ends: 3302 [2021-08-21 11:54:28,723 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 354.8ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2021-08-21 11:54:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 2527. [2021-08-21 11:54:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2526 states have (on average 2.621140142517815) internal successors, (6621), 2526 states have internal predecessors, (6621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 6621 transitions. [2021-08-21 11:54:28,748 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 6621 transitions. Word has length 119 [2021-08-21 11:54:28,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:28,748 INFO L470 AbstractCegarLoop]: Abstraction has 2527 states and 6621 transitions. [2021-08-21 11:54:28,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:28,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 6621 transitions. [2021-08-21 11:54:28,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:28,750 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:28,750 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:28,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-08-21 11:54:28,750 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:28,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:28,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1848013383, now seen corresponding path program 150 times [2021-08-21 11:54:28,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:28,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214402130] [2021-08-21 11:54:28,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:28,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:29,530 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:29,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214402130] [2021-08-21 11:54:29,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214402130] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:29,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:29,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:29,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271474708] [2021-08-21 11:54:29,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:29,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:29,531 INFO L87 Difference]: Start difference. First operand 2527 states and 6621 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:31,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:31,450 INFO L93 Difference]: Finished difference Result 2662 states and 6864 transitions. [2021-08-21 11:54:31,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:54:31,450 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:31,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:31,453 INFO L225 Difference]: With dead ends: 2662 [2021-08-21 11:54:31,453 INFO L226 Difference]: Without dead ends: 2557 [2021-08-21 11:54:31,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1569.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:54:31,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2557 states. [2021-08-21 11:54:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2557 to 2527. [2021-08-21 11:54:31,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2526 states have (on average 2.619556611243072) internal successors, (6617), 2526 states have internal predecessors, (6617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:31,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 6617 transitions. [2021-08-21 11:54:31,477 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 6617 transitions. Word has length 119 [2021-08-21 11:54:31,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:31,477 INFO L470 AbstractCegarLoop]: Abstraction has 2527 states and 6617 transitions. [2021-08-21 11:54:31,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:31,478 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 6617 transitions. [2021-08-21 11:54:31,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:31,480 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:31,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:31,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-08-21 11:54:31,480 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:31,480 INFO L82 PathProgramCache]: Analyzing trace with hash -792262325, now seen corresponding path program 151 times [2021-08-21 11:54:31,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:31,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424218024] [2021-08-21 11:54:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:31,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:32,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:32,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:32,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424218024] [2021-08-21 11:54:32,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424218024] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:32,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:32,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:32,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492955231] [2021-08-21 11:54:32,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:32,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:32,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:32,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:32,253 INFO L87 Difference]: Start difference. First operand 2527 states and 6617 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:34,629 INFO L93 Difference]: Finished difference Result 2870 states and 7406 transitions. [2021-08-21 11:54:34,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:54:34,630 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:34,634 INFO L225 Difference]: With dead ends: 2870 [2021-08-21 11:54:34,634 INFO L226 Difference]: Without dead ends: 2775 [2021-08-21 11:54:34,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 1880.9ms TimeCoverageRelationStatistics Valid=474, Invalid=2496, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:54:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-08-21 11:54:34,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2671. [2021-08-21 11:54:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2671 states, 2670 states have (on average 2.6168539325842697) internal successors, (6987), 2670 states have internal predecessors, (6987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:34,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2671 states to 2671 states and 6987 transitions. [2021-08-21 11:54:34,659 INFO L78 Accepts]: Start accepts. Automaton has 2671 states and 6987 transitions. Word has length 119 [2021-08-21 11:54:34,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:34,659 INFO L470 AbstractCegarLoop]: Abstraction has 2671 states and 6987 transitions. [2021-08-21 11:54:34,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:34,660 INFO L276 IsEmpty]: Start isEmpty. Operand 2671 states and 6987 transitions. [2021-08-21 11:54:34,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:34,662 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:34,662 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:34,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-08-21 11:54:34,662 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:34,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:34,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1718342091, now seen corresponding path program 152 times [2021-08-21 11:54:34,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:34,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417224729] [2021-08-21 11:54:34,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:34,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:35,581 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:35,581 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417224729] [2021-08-21 11:54:35,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417224729] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:35,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:35,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:35,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447704000] [2021-08-21 11:54:35,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:35,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:35,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:35,582 INFO L87 Difference]: Start difference. First operand 2671 states and 6987 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:38,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:38,254 INFO L93 Difference]: Finished difference Result 3093 states and 7909 transitions. [2021-08-21 11:54:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:54:38,254 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:38,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:38,257 INFO L225 Difference]: With dead ends: 3093 [2021-08-21 11:54:38,257 INFO L226 Difference]: Without dead ends: 2598 [2021-08-21 11:54:38,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 2345.1ms TimeCoverageRelationStatistics Valid=502, Invalid=2578, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:54:38,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-08-21 11:54:38,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 2503. [2021-08-21 11:54:38,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2503 states, 2502 states have (on average 2.6207034372502) internal successors, (6557), 2502 states have internal predecessors, (6557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:38,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2503 states to 2503 states and 6557 transitions. [2021-08-21 11:54:38,280 INFO L78 Accepts]: Start accepts. Automaton has 2503 states and 6557 transitions. Word has length 119 [2021-08-21 11:54:38,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:38,280 INFO L470 AbstractCegarLoop]: Abstraction has 2503 states and 6557 transitions. [2021-08-21 11:54:38,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2503 states and 6557 transitions. [2021-08-21 11:54:38,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:38,282 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:38,282 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:38,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-08-21 11:54:38,283 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:38,283 INFO L82 PathProgramCache]: Analyzing trace with hash -161473839, now seen corresponding path program 153 times [2021-08-21 11:54:38,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:38,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549252799] [2021-08-21 11:54:38,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:38,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:39,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:39,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:39,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549252799] [2021-08-21 11:54:39,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549252799] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:39,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:39,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:39,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917633734] [2021-08-21 11:54:39,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:39,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:39,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:39,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:39,174 INFO L87 Difference]: Start difference. First operand 2503 states and 6557 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:41,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:41,530 INFO L93 Difference]: Finished difference Result 2630 states and 6788 transitions. [2021-08-21 11:54:41,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:54:41,531 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:41,534 INFO L225 Difference]: With dead ends: 2630 [2021-08-21 11:54:41,534 INFO L226 Difference]: Without dead ends: 2473 [2021-08-21 11:54:41,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 2043.6ms TimeCoverageRelationStatistics Valid=488, Invalid=2482, Unknown=0, NotChecked=0, Total=2970 [2021-08-21 11:54:41,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2021-08-21 11:54:41,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2443. [2021-08-21 11:54:41,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2442 states have (on average 2.6375921375921374) internal successors, (6441), 2442 states have internal predecessors, (6441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:41,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 6441 transitions. [2021-08-21 11:54:41,557 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 6441 transitions. Word has length 119 [2021-08-21 11:54:41,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:41,557 INFO L470 AbstractCegarLoop]: Abstraction has 2443 states and 6441 transitions. [2021-08-21 11:54:41,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:41,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 6441 transitions. [2021-08-21 11:54:41,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:41,559 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:41,560 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:41,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-08-21 11:54:41,560 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:41,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1422530277, now seen corresponding path program 154 times [2021-08-21 11:54:41,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:41,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202819317] [2021-08-21 11:54:41,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:41,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:42,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:42,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202819317] [2021-08-21 11:54:42,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202819317] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:42,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:42,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:42,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240707496] [2021-08-21 11:54:42,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:42,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:42,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:42,181 INFO L87 Difference]: Start difference. First operand 2443 states and 6441 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:44,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:44,088 INFO L93 Difference]: Finished difference Result 2600 states and 6747 transitions. [2021-08-21 11:54:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:54:44,088 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:44,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:44,091 INFO L225 Difference]: With dead ends: 2600 [2021-08-21 11:54:44,092 INFO L226 Difference]: Without dead ends: 2481 [2021-08-21 11:54:44,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1626.5ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:54:44,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2021-08-21 11:54:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2427. [2021-08-21 11:54:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2426 states have (on average 2.6426215993404782) internal successors, (6411), 2426 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 6411 transitions. [2021-08-21 11:54:44,120 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 6411 transitions. Word has length 119 [2021-08-21 11:54:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:44,120 INFO L470 AbstractCegarLoop]: Abstraction has 2427 states and 6411 transitions. [2021-08-21 11:54:44,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:44,120 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 6411 transitions. [2021-08-21 11:54:44,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:44,123 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:44,123 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:44,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-08-21 11:54:44,123 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:44,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:44,123 INFO L82 PathProgramCache]: Analyzing trace with hash -47347129, now seen corresponding path program 155 times [2021-08-21 11:54:44,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:44,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966231703] [2021-08-21 11:54:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:44,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:44,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:44,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:44,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966231703] [2021-08-21 11:54:44,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966231703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:44,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:44,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:54:44,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232166754] [2021-08-21 11:54:44,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:54:44,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:54:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:54:44,422 INFO L87 Difference]: Start difference. First operand 2427 states and 6411 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:45,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:45,152 INFO L93 Difference]: Finished difference Result 5050 states and 12954 transitions. [2021-08-21 11:54:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-21 11:54:45,152 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:45,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:45,159 INFO L225 Difference]: With dead ends: 5050 [2021-08-21 11:54:45,159 INFO L226 Difference]: Without dead ends: 5050 [2021-08-21 11:54:45,159 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 608.2ms TimeCoverageRelationStatistics Valid=341, Invalid=991, Unknown=0, NotChecked=0, Total=1332 [2021-08-21 11:54:45,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5050 states. [2021-08-21 11:54:45,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5050 to 2597. [2021-08-21 11:54:45,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2597 states, 2596 states have (on average 2.610169491525424) internal successors, (6776), 2596 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:45,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2597 states to 2597 states and 6776 transitions. [2021-08-21 11:54:45,192 INFO L78 Accepts]: Start accepts. Automaton has 2597 states and 6776 transitions. Word has length 119 [2021-08-21 11:54:45,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:45,192 INFO L470 AbstractCegarLoop]: Abstraction has 2597 states and 6776 transitions. [2021-08-21 11:54:45,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:45,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2597 states and 6776 transitions. [2021-08-21 11:54:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:45,195 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:45,195 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:45,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-08-21 11:54:45,195 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:45,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1392679781, now seen corresponding path program 156 times [2021-08-21 11:54:45,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:45,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401679201] [2021-08-21 11:54:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:45,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:46,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:46,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401679201] [2021-08-21 11:54:46,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401679201] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:46,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:46,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:46,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268335170] [2021-08-21 11:54:46,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:46,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:46,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:46,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:46,180 INFO L87 Difference]: Start difference. First operand 2597 states and 6776 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:49,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:49,229 INFO L93 Difference]: Finished difference Result 3483 states and 8996 transitions. [2021-08-21 11:54:49,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:54:49,229 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:49,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:49,234 INFO L225 Difference]: With dead ends: 3483 [2021-08-21 11:54:49,234 INFO L226 Difference]: Without dead ends: 3315 [2021-08-21 11:54:49,234 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 2654.1ms TimeCoverageRelationStatistics Valid=678, Invalid=3228, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:54:49,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3315 states. [2021-08-21 11:54:49,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3315 to 2819. [2021-08-21 11:54:49,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 2818 states have (on average 2.6373314407381123) internal successors, (7432), 2818 states have internal predecessors, (7432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:49,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 7432 transitions. [2021-08-21 11:54:49,262 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 7432 transitions. Word has length 119 [2021-08-21 11:54:49,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:49,262 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 7432 transitions. [2021-08-21 11:54:49,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:49,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 7432 transitions. [2021-08-21 11:54:49,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:49,265 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:49,265 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:49,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-08-21 11:54:49,265 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:49,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:49,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1921042463, now seen corresponding path program 157 times [2021-08-21 11:54:49,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:49,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825403703] [2021-08-21 11:54:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:49,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:49,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:50,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:50,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:50,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825403703] [2021-08-21 11:54:50,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825403703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:50,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:50,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:54:50,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213790274] [2021-08-21 11:54:50,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:54:50,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:50,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:54:50,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:54:50,202 INFO L87 Difference]: Start difference. First operand 2819 states and 7432 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:53,123 INFO L93 Difference]: Finished difference Result 4077 states and 10538 transitions. [2021-08-21 11:54:53,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:54:53,123 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:53,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:53,128 INFO L225 Difference]: With dead ends: 4077 [2021-08-21 11:54:53,128 INFO L226 Difference]: Without dead ends: 3911 [2021-08-21 11:54:53,128 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 2478.3ms TimeCoverageRelationStatistics Valid=616, Invalid=3290, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:54:53,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2021-08-21 11:54:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 3035. [2021-08-21 11:54:53,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3035 states, 3034 states have (on average 2.6407382992748847) internal successors, (8012), 3034 states have internal predecessors, (8012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 8012 transitions. [2021-08-21 11:54:53,158 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 8012 transitions. Word has length 119 [2021-08-21 11:54:53,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:53,158 INFO L470 AbstractCegarLoop]: Abstraction has 3035 states and 8012 transitions. [2021-08-21 11:54:53,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:53,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 8012 transitions. [2021-08-21 11:54:53,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:53,161 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:53,161 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:53,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-08-21 11:54:53,161 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:53,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1592431929, now seen corresponding path program 158 times [2021-08-21 11:54:53,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:53,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952859524] [2021-08-21 11:54:53,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:53,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:53,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:53,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952859524] [2021-08-21 11:54:53,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952859524] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:53,827 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:53,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:53,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573013749] [2021-08-21 11:54:53,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:53,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:53,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:53,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:53,828 INFO L87 Difference]: Start difference. First operand 3035 states and 8012 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:56,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:56,185 INFO L93 Difference]: Finished difference Result 4349 states and 11296 transitions. [2021-08-21 11:54:56,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:54:56,185 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:56,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:56,191 INFO L225 Difference]: With dead ends: 4349 [2021-08-21 11:54:56,191 INFO L226 Difference]: Without dead ends: 3958 [2021-08-21 11:54:56,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 588 ImplicationChecksByTransitivity, 1986.0ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:54:56,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2021-08-21 11:54:56,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3095. [2021-08-21 11:54:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 3094 states have (on average 2.6244343891402715) internal successors, (8120), 3094 states have internal predecessors, (8120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 8120 transitions. [2021-08-21 11:54:56,225 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 8120 transitions. Word has length 119 [2021-08-21 11:54:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:56,225 INFO L470 AbstractCegarLoop]: Abstraction has 3095 states and 8120 transitions. [2021-08-21 11:54:56,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:56,225 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 8120 transitions. [2021-08-21 11:54:56,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:56,228 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:56,228 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:56,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-08-21 11:54:56,228 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:56,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:56,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1940351617, now seen corresponding path program 159 times [2021-08-21 11:54:56,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:56,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799309046] [2021-08-21 11:54:56,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:56,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:54:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:54:56,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:54:56,915 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799309046] [2021-08-21 11:54:56,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799309046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:54:56,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:54:56,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:54:56,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5473936] [2021-08-21 11:54:56,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:54:56,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:54:56,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:54:56,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:54:56,916 INFO L87 Difference]: Start difference. First operand 3095 states and 8120 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:59,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:54:59,436 INFO L93 Difference]: Finished difference Result 4064 states and 10489 transitions. [2021-08-21 11:54:59,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:54:59,436 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:54:59,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:54:59,440 INFO L225 Difference]: With dead ends: 4064 [2021-08-21 11:54:59,440 INFO L226 Difference]: Without dead ends: 3646 [2021-08-21 11:54:59,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 2149.9ms TimeCoverageRelationStatistics Valid=639, Invalid=3143, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:54:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3646 states. [2021-08-21 11:54:59,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3646 to 2783. [2021-08-21 11:54:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 2782 states have (on average 2.628684399712437) internal successors, (7313), 2782 states have internal predecessors, (7313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:59,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 7313 transitions. [2021-08-21 11:54:59,468 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 7313 transitions. Word has length 119 [2021-08-21 11:54:59,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:54:59,468 INFO L470 AbstractCegarLoop]: Abstraction has 2783 states and 7313 transitions. [2021-08-21 11:54:59,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:54:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 7313 transitions. [2021-08-21 11:54:59,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:54:59,471 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:54:59,471 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:54:59,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-08-21 11:54:59,471 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:54:59,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:54:59,471 INFO L82 PathProgramCache]: Analyzing trace with hash 890500847, now seen corresponding path program 160 times [2021-08-21 11:54:59,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:54:59,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526555935] [2021-08-21 11:54:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:54:59,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:54:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:00,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:00,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:00,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526555935] [2021-08-21 11:55:00,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526555935] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:00,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:00,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:00,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432159568] [2021-08-21 11:55:00,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:00,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:00,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:00,239 INFO L87 Difference]: Start difference. First operand 2783 states and 7313 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:02,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:02,703 INFO L93 Difference]: Finished difference Result 3295 states and 8424 transitions. [2021-08-21 11:55:02,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:55:02,703 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:02,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:02,708 INFO L225 Difference]: With dead ends: 3295 [2021-08-21 11:55:02,708 INFO L226 Difference]: Without dead ends: 3085 [2021-08-21 11:55:02,709 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2049.7ms TimeCoverageRelationStatistics Valid=625, Invalid=3035, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:55:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-08-21 11:55:02,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2773. [2021-08-21 11:55:02,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2773 states, 2772 states have (on average 2.634920634920635) internal successors, (7304), 2772 states have internal predecessors, (7304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:02,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2773 states to 2773 states and 7304 transitions. [2021-08-21 11:55:02,745 INFO L78 Accepts]: Start accepts. Automaton has 2773 states and 7304 transitions. Word has length 119 [2021-08-21 11:55:02,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:02,745 INFO L470 AbstractCegarLoop]: Abstraction has 2773 states and 7304 transitions. [2021-08-21 11:55:02,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2773 states and 7304 transitions. [2021-08-21 11:55:02,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:02,748 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:02,748 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:02,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-08-21 11:55:02,749 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:02,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:02,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1775549043, now seen corresponding path program 161 times [2021-08-21 11:55:02,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:02,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714582298] [2021-08-21 11:55:02,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:02,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:03,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:03,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:03,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714582298] [2021-08-21 11:55:03,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714582298] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:03,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:03,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:03,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879993854] [2021-08-21 11:55:03,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:03,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:03,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:03,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:03,529 INFO L87 Difference]: Start difference. First operand 2773 states and 7304 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:06,012 INFO L93 Difference]: Finished difference Result 3239 states and 8316 transitions. [2021-08-21 11:55:06,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:55:06,013 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:06,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:06,016 INFO L225 Difference]: With dead ends: 3239 [2021-08-21 11:55:06,016 INFO L226 Difference]: Without dead ends: 3084 [2021-08-21 11:55:06,017 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 2050.3ms TimeCoverageRelationStatistics Valid=601, Invalid=2821, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:55:06,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-08-21 11:55:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2779. [2021-08-21 11:55:06,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 2778 states have (on average 2.6310295176385887) internal successors, (7309), 2778 states have internal predecessors, (7309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:06,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 7309 transitions. [2021-08-21 11:55:06,045 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 7309 transitions. Word has length 119 [2021-08-21 11:55:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:06,045 INFO L470 AbstractCegarLoop]: Abstraction has 2779 states and 7309 transitions. [2021-08-21 11:55:06,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 7309 transitions. [2021-08-21 11:55:06,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:06,048 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:06,048 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:06,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-08-21 11:55:06,048 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:06,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:06,048 INFO L82 PathProgramCache]: Analyzing trace with hash -120857455, now seen corresponding path program 162 times [2021-08-21 11:55:06,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:06,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230805252] [2021-08-21 11:55:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:06,049 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:06,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:06,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:06,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230805252] [2021-08-21 11:55:06,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230805252] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:06,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:06,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:06,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819815068] [2021-08-21 11:55:06,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:06,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:06,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:06,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:06,882 INFO L87 Difference]: Start difference. First operand 2779 states and 7309 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:09,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:09,495 INFO L93 Difference]: Finished difference Result 4135 states and 10690 transitions. [2021-08-21 11:55:09,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:55:09,495 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:09,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:09,500 INFO L225 Difference]: With dead ends: 4135 [2021-08-21 11:55:09,501 INFO L226 Difference]: Without dead ends: 3990 [2021-08-21 11:55:09,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2130.5ms TimeCoverageRelationStatistics Valid=601, Invalid=3181, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:55:09,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3990 states. [2021-08-21 11:55:09,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3990 to 3067. [2021-08-21 11:55:09,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3066 states have (on average 2.642857142857143) internal successors, (8103), 3066 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:09,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 8103 transitions. [2021-08-21 11:55:09,534 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 8103 transitions. Word has length 119 [2021-08-21 11:55:09,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:09,534 INFO L470 AbstractCegarLoop]: Abstraction has 3067 states and 8103 transitions. [2021-08-21 11:55:09,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:09,534 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 8103 transitions. [2021-08-21 11:55:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:09,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:09,536 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:09,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-08-21 11:55:09,537 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:09,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1905220335, now seen corresponding path program 163 times [2021-08-21 11:55:09,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:09,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951700969] [2021-08-21 11:55:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:09,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:09,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:10,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:10,434 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951700969] [2021-08-21 11:55:10,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951700969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:10,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:10,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:10,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992165067] [2021-08-21 11:55:10,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:10,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:10,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:10,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:10,435 INFO L87 Difference]: Start difference. First operand 3067 states and 8103 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:13,961 INFO L93 Difference]: Finished difference Result 4470 states and 11574 transitions. [2021-08-21 11:55:13,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:55:13,962 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:13,967 INFO L225 Difference]: With dead ends: 4470 [2021-08-21 11:55:13,967 INFO L226 Difference]: Without dead ends: 3688 [2021-08-21 11:55:13,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2877.1ms TimeCoverageRelationStatistics Valid=655, Invalid=3251, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:55:13,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2021-08-21 11:55:13,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 2803. [2021-08-21 11:55:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2802 states have (on average 2.6213418986438257) internal successors, (7345), 2802 states have internal predecessors, (7345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 7345 transitions. [2021-08-21 11:55:13,998 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 7345 transitions. Word has length 119 [2021-08-21 11:55:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:13,998 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 7345 transitions. [2021-08-21 11:55:13,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 7345 transitions. [2021-08-21 11:55:14,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:14,001 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:14,001 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:14,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2021-08-21 11:55:14,001 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:14,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:14,002 INFO L82 PathProgramCache]: Analyzing trace with hash 509931031, now seen corresponding path program 164 times [2021-08-21 11:55:14,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:14,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839617318] [2021-08-21 11:55:14,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:14,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:14,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:14,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839617318] [2021-08-21 11:55:14,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839617318] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:14,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:14,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:14,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351322203] [2021-08-21 11:55:14,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:14,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:14,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:14,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:14,895 INFO L87 Difference]: Start difference. First operand 2803 states and 7345 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:17,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:17,887 INFO L93 Difference]: Finished difference Result 3449 states and 8852 transitions. [2021-08-21 11:55:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:55:17,888 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:17,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:17,926 INFO L225 Difference]: With dead ends: 3449 [2021-08-21 11:55:17,926 INFO L226 Difference]: Without dead ends: 3242 [2021-08-21 11:55:17,926 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 2443.7ms TimeCoverageRelationStatistics Valid=652, Invalid=3130, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:55:17,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2021-08-21 11:55:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 2743. [2021-08-21 11:55:17,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2742 states have (on average 2.636396790663749) internal successors, (7229), 2742 states have internal predecessors, (7229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 7229 transitions. [2021-08-21 11:55:17,953 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 7229 transitions. Word has length 119 [2021-08-21 11:55:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:17,953 INFO L470 AbstractCegarLoop]: Abstraction has 2743 states and 7229 transitions. [2021-08-21 11:55:17,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 7229 transitions. [2021-08-21 11:55:17,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:17,956 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:17,956 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:17,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2021-08-21 11:55:17,956 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:17,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:17,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2127556261, now seen corresponding path program 165 times [2021-08-21 11:55:17,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:17,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404422203] [2021-08-21 11:55:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:17,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:18,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:18,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:18,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404422203] [2021-08-21 11:55:18,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404422203] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:18,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:18,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:55:18,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888482600] [2021-08-21 11:55:18,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:55:18,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:18,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:55:18,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:55:18,236 INFO L87 Difference]: Start difference. First operand 2743 states and 7229 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:18,744 INFO L93 Difference]: Finished difference Result 3428 states and 8671 transitions. [2021-08-21 11:55:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:55:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:18,749 INFO L225 Difference]: With dead ends: 3428 [2021-08-21 11:55:18,749 INFO L226 Difference]: Without dead ends: 3372 [2021-08-21 11:55:18,749 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 393.7ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:18,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2021-08-21 11:55:18,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 2545. [2021-08-21 11:55:18,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2545 states, 2544 states have (on average 2.626572327044025) internal successors, (6682), 2544 states have internal predecessors, (6682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:18,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2545 states to 2545 states and 6682 transitions. [2021-08-21 11:55:18,775 INFO L78 Accepts]: Start accepts. Automaton has 2545 states and 6682 transitions. Word has length 119 [2021-08-21 11:55:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:18,775 INFO L470 AbstractCegarLoop]: Abstraction has 2545 states and 6682 transitions. [2021-08-21 11:55:18,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 2545 states and 6682 transitions. [2021-08-21 11:55:18,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:18,777 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:18,777 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:18,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2021-08-21 11:55:18,778 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:18,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:18,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1556311171, now seen corresponding path program 166 times [2021-08-21 11:55:18,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:18,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544792479] [2021-08-21 11:55:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:18,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:19,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:19,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544792479] [2021-08-21 11:55:19,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544792479] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:19,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:19,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:19,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463464905] [2021-08-21 11:55:19,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:19,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:19,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:19,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:19,590 INFO L87 Difference]: Start difference. First operand 2545 states and 6682 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:22,073 INFO L93 Difference]: Finished difference Result 2704 states and 6981 transitions. [2021-08-21 11:55:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:55:22,073 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:22,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:22,077 INFO L225 Difference]: With dead ends: 2704 [2021-08-21 11:55:22,077 INFO L226 Difference]: Without dead ends: 2601 [2021-08-21 11:55:22,077 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2160.6ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:55:22,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2021-08-21 11:55:22,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2555. [2021-08-21 11:55:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 2554 states have (on average 2.6229444009397023) internal successors, (6699), 2554 states have internal predecessors, (6699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 6699 transitions. [2021-08-21 11:55:22,102 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 6699 transitions. Word has length 119 [2021-08-21 11:55:22,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:22,102 INFO L470 AbstractCegarLoop]: Abstraction has 2555 states and 6699 transitions. [2021-08-21 11:55:22,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:22,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 6699 transitions. [2021-08-21 11:55:22,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:22,104 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:22,105 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:22,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2021-08-21 11:55:22,105 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:22,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1126831985, now seen corresponding path program 167 times [2021-08-21 11:55:22,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:22,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400466437] [2021-08-21 11:55:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:22,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:22,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:22,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:22,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400466437] [2021-08-21 11:55:22,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400466437] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:22,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:22,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:22,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780364457] [2021-08-21 11:55:22,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:22,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:22,943 INFO L87 Difference]: Start difference. First operand 2555 states and 6699 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:25,381 INFO L93 Difference]: Finished difference Result 2738 states and 7054 transitions. [2021-08-21 11:55:25,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:55:25,381 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:25,385 INFO L225 Difference]: With dead ends: 2738 [2021-08-21 11:55:25,385 INFO L226 Difference]: Without dead ends: 2633 [2021-08-21 11:55:25,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 2211.6ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:55:25,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2021-08-21 11:55:25,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2557. [2021-08-21 11:55:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.6220657276995305) internal successors, (6702), 2556 states have internal predecessors, (6702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:25,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6702 transitions. [2021-08-21 11:55:25,410 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6702 transitions. Word has length 119 [2021-08-21 11:55:25,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:25,410 INFO L470 AbstractCegarLoop]: Abstraction has 2557 states and 6702 transitions. [2021-08-21 11:55:25,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:25,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6702 transitions. [2021-08-21 11:55:25,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:25,413 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:25,413 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:25,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2021-08-21 11:55:25,413 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:25,413 INFO L82 PathProgramCache]: Analyzing trace with hash 713063589, now seen corresponding path program 168 times [2021-08-21 11:55:25,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:25,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944251242] [2021-08-21 11:55:25,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:25,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:26,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:26,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944251242] [2021-08-21 11:55:26,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944251242] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:26,102 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:26,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:26,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931922925] [2021-08-21 11:55:26,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:26,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:26,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:26,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:26,103 INFO L87 Difference]: Start difference. First operand 2557 states and 6702 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:27,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:27,986 INFO L93 Difference]: Finished difference Result 2694 states and 6958 transitions. [2021-08-21 11:55:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:55:27,987 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:27,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:27,990 INFO L225 Difference]: With dead ends: 2694 [2021-08-21 11:55:27,990 INFO L226 Difference]: Without dead ends: 2589 [2021-08-21 11:55:27,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1623.0ms TimeCoverageRelationStatistics Valid=448, Invalid=2204, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:55:27,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2021-08-21 11:55:28,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2549. [2021-08-21 11:55:28,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 2548 states have (on average 2.6236263736263736) internal successors, (6685), 2548 states have internal predecessors, (6685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 6685 transitions. [2021-08-21 11:55:28,016 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 6685 transitions. Word has length 119 [2021-08-21 11:55:28,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:28,016 INFO L470 AbstractCegarLoop]: Abstraction has 2549 states and 6685 transitions. [2021-08-21 11:55:28,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:28,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 6685 transitions. [2021-08-21 11:55:28,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:28,018 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:28,018 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:28,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2021-08-21 11:55:28,019 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:28,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:28,019 INFO L82 PathProgramCache]: Analyzing trace with hash 882663661, now seen corresponding path program 169 times [2021-08-21 11:55:28,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:28,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851972703] [2021-08-21 11:55:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:28,019 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:28,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:28,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851972703] [2021-08-21 11:55:28,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851972703] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:28,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:28,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:28,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160081122] [2021-08-21 11:55:28,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:28,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:28,971 INFO L87 Difference]: Start difference. First operand 2549 states and 6685 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:31,586 INFO L93 Difference]: Finished difference Result 2980 states and 7688 transitions. [2021-08-21 11:55:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:55:31,587 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:31,591 INFO L225 Difference]: With dead ends: 2980 [2021-08-21 11:55:31,591 INFO L226 Difference]: Without dead ends: 2875 [2021-08-21 11:55:31,591 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2242.7ms TimeCoverageRelationStatistics Valid=484, Invalid=2596, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:55:31,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2875 states. [2021-08-21 11:55:31,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2875 to 2585. [2021-08-21 11:55:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2584 states have (on average 2.6222910216718267) internal successors, (6776), 2584 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 6776 transitions. [2021-08-21 11:55:31,617 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 6776 transitions. Word has length 119 [2021-08-21 11:55:31,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:31,617 INFO L470 AbstractCegarLoop]: Abstraction has 2585 states and 6776 transitions. [2021-08-21 11:55:31,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:31,617 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 6776 transitions. [2021-08-21 11:55:31,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:31,620 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:31,620 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:31,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2021-08-21 11:55:31,620 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:31,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:31,620 INFO L82 PathProgramCache]: Analyzing trace with hash 172037041, now seen corresponding path program 170 times [2021-08-21 11:55:31,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:31,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070143157] [2021-08-21 11:55:31,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:31,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:31,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:32,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:32,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070143157] [2021-08-21 11:55:32,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070143157] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:32,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:32,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:32,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744293283] [2021-08-21 11:55:32,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:32,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:32,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:32,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:32,647 INFO L87 Difference]: Start difference. First operand 2585 states and 6776 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:34,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:34,975 INFO L93 Difference]: Finished difference Result 3180 states and 8201 transitions. [2021-08-21 11:55:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:55:34,976 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:34,980 INFO L225 Difference]: With dead ends: 3180 [2021-08-21 11:55:34,980 INFO L226 Difference]: Without dead ends: 3085 [2021-08-21 11:55:34,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2083.0ms TimeCoverageRelationStatistics Valid=484, Invalid=2596, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:55:34,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3085 states. [2021-08-21 11:55:35,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3085 to 2753. [2021-08-21 11:55:35,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 2752 states have (on average 2.614098837209302) internal successors, (7194), 2752 states have internal predecessors, (7194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:35,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 7194 transitions. [2021-08-21 11:55:35,011 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 7194 transitions. Word has length 119 [2021-08-21 11:55:35,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:35,011 INFO L470 AbstractCegarLoop]: Abstraction has 2753 states and 7194 transitions. [2021-08-21 11:55:35,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:35,011 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 7194 transitions. [2021-08-21 11:55:35,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:35,015 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:35,015 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:35,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2021-08-21 11:55:35,015 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:35,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:35,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1612325839, now seen corresponding path program 171 times [2021-08-21 11:55:35,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:35,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203094165] [2021-08-21 11:55:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:35,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:35,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:35,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:35,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203094165] [2021-08-21 11:55:35,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203094165] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:35,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:35,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:35,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437064734] [2021-08-21 11:55:35,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:35,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:35,950 INFO L87 Difference]: Start difference. First operand 2753 states and 7194 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:38,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:38,664 INFO L93 Difference]: Finished difference Result 3403 states and 8704 transitions. [2021-08-21 11:55:38,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:55:38,664 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:38,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:38,668 INFO L225 Difference]: With dead ends: 3403 [2021-08-21 11:55:38,668 INFO L226 Difference]: Without dead ends: 2848 [2021-08-21 11:55:38,669 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 554 ImplicationChecksByTransitivity, 2364.7ms TimeCoverageRelationStatistics Valid=514, Invalid=2678, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:55:38,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2021-08-21 11:55:38,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2525. [2021-08-21 11:55:38,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2524 states have (on average 2.615293185419968) internal successors, (6601), 2524 states have internal predecessors, (6601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:38,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 6601 transitions. [2021-08-21 11:55:38,694 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 6601 transitions. Word has length 119 [2021-08-21 11:55:38,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:38,694 INFO L470 AbstractCegarLoop]: Abstraction has 2525 states and 6601 transitions. [2021-08-21 11:55:38,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:38,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 6601 transitions. [2021-08-21 11:55:38,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:38,697 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:38,697 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:38,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2021-08-21 11:55:38,697 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:38,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:38,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1037729753, now seen corresponding path program 172 times [2021-08-21 11:55:38,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:38,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256749082] [2021-08-21 11:55:38,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:38,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:39,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:39,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:39,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256749082] [2021-08-21 11:55:39,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256749082] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:39,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:39,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:39,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869934371] [2021-08-21 11:55:39,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:39,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:39,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:39,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:39,586 INFO L87 Difference]: Start difference. First operand 2525 states and 6601 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:41,914 INFO L93 Difference]: Finished difference Result 2706 states and 6953 transitions. [2021-08-21 11:55:41,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:55:41,914 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:41,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:41,917 INFO L225 Difference]: With dead ends: 2706 [2021-08-21 11:55:41,918 INFO L226 Difference]: Without dead ends: 2601 [2021-08-21 11:55:41,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2053.7ms TimeCoverageRelationStatistics Valid=518, Invalid=2674, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:55:41,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2601 states. [2021-08-21 11:55:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2601 to 2527. [2021-08-21 11:55:41,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2527 states, 2526 states have (on average 2.6144101346001585) internal successors, (6604), 2526 states have internal predecessors, (6604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:41,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2527 states to 2527 states and 6604 transitions. [2021-08-21 11:55:41,941 INFO L78 Accepts]: Start accepts. Automaton has 2527 states and 6604 transitions. Word has length 119 [2021-08-21 11:55:41,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:41,941 INFO L470 AbstractCegarLoop]: Abstraction has 2527 states and 6604 transitions. [2021-08-21 11:55:41,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:41,941 INFO L276 IsEmpty]: Start isEmpty. Operand 2527 states and 6604 transitions. [2021-08-21 11:55:41,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:41,944 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:41,944 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:41,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2021-08-21 11:55:41,944 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:41,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:41,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1789982949, now seen corresponding path program 173 times [2021-08-21 11:55:41,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:41,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890347885] [2021-08-21 11:55:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:41,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:41,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:42,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:42,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890347885] [2021-08-21 11:55:42,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890347885] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:42,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:42,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:42,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415692784] [2021-08-21 11:55:42,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:42,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:42,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:42,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:42,679 INFO L87 Difference]: Start difference. First operand 2527 states and 6604 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:44,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:44,989 INFO L93 Difference]: Finished difference Result 2664 states and 6860 transitions. [2021-08-21 11:55:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:55:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:44,993 INFO L225 Difference]: With dead ends: 2664 [2021-08-21 11:55:44,993 INFO L226 Difference]: Without dead ends: 2565 [2021-08-21 11:55:44,994 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 489 ImplicationChecksByTransitivity, 2008.1ms TimeCoverageRelationStatistics Valid=513, Invalid=2567, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:55:44,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2565 states. [2021-08-21 11:55:45,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2565 to 2525. [2021-08-21 11:55:45,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 2524 states have (on average 2.6148969889064975) internal successors, (6600), 2524 states have internal predecessors, (6600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:45,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 6600 transitions. [2021-08-21 11:55:45,024 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 6600 transitions. Word has length 119 [2021-08-21 11:55:45,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:45,024 INFO L470 AbstractCegarLoop]: Abstraction has 2525 states and 6600 transitions. [2021-08-21 11:55:45,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:45,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 6600 transitions. [2021-08-21 11:55:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:45,026 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:45,026 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:45,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2021-08-21 11:55:45,027 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:45,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:45,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1972567013, now seen corresponding path program 174 times [2021-08-21 11:55:45,027 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:45,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969988520] [2021-08-21 11:55:45,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:45,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:46,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:46,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969988520] [2021-08-21 11:55:46,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969988520] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:46,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:46,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:46,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525593340] [2021-08-21 11:55:46,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:46,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=797, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:46,142 INFO L87 Difference]: Start difference. First operand 2525 states and 6600 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:48,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:48,479 INFO L93 Difference]: Finished difference Result 2880 states and 7417 transitions. [2021-08-21 11:55:48,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:55:48,479 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:48,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:48,482 INFO L225 Difference]: With dead ends: 2880 [2021-08-21 11:55:48,482 INFO L226 Difference]: Without dead ends: 2785 [2021-08-21 11:55:48,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 2139.9ms TimeCoverageRelationStatistics Valid=511, Invalid=2681, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:55:48,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-08-21 11:55:48,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2669. [2021-08-21 11:55:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 2668 states have (on average 2.6124437781109444) internal successors, (6970), 2668 states have internal predecessors, (6970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 6970 transitions. [2021-08-21 11:55:48,507 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 6970 transitions. Word has length 119 [2021-08-21 11:55:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 2669 states and 6970 transitions. [2021-08-21 11:55:48,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 6970 transitions. [2021-08-21 11:55:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:48,509 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:48,509 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:48,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2021-08-21 11:55:48,509 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:48,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:48,510 INFO L82 PathProgramCache]: Analyzing trace with hash 188204133, now seen corresponding path program 175 times [2021-08-21 11:55:48,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:48,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053842259] [2021-08-21 11:55:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:48,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:49,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:49,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053842259] [2021-08-21 11:55:49,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053842259] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:49,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:49,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:49,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522944043] [2021-08-21 11:55:49,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:49,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:49,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:49,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:49,162 INFO L87 Difference]: Start difference. First operand 2669 states and 6970 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:51,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:51,358 INFO L93 Difference]: Finished difference Result 3103 states and 7920 transitions. [2021-08-21 11:55:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:55:51,362 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:51,365 INFO L225 Difference]: With dead ends: 3103 [2021-08-21 11:55:51,365 INFO L226 Difference]: Without dead ends: 2608 [2021-08-21 11:55:51,366 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 1859.9ms TimeCoverageRelationStatistics Valid=536, Invalid=2770, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:55:51,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2021-08-21 11:55:51,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2501. [2021-08-21 11:55:51,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2501 states, 2500 states have (on average 2.616) internal successors, (6540), 2500 states have internal predecessors, (6540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:51,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2501 states to 2501 states and 6540 transitions. [2021-08-21 11:55:51,390 INFO L78 Accepts]: Start accepts. Automaton has 2501 states and 6540 transitions. Word has length 119 [2021-08-21 11:55:51,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:51,390 INFO L470 AbstractCegarLoop]: Abstraction has 2501 states and 6540 transitions. [2021-08-21 11:55:51,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:51,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2501 states and 6540 transitions. [2021-08-21 11:55:51,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:51,392 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:51,392 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:51,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2021-08-21 11:55:51,392 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:51,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:51,392 INFO L82 PathProgramCache]: Analyzing trace with hash -1691611797, now seen corresponding path program 176 times [2021-08-21 11:55:51,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:51,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288175081] [2021-08-21 11:55:51,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:51,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:51,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:52,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:52,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288175081] [2021-08-21 11:55:52,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288175081] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:52,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:52,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:55:52,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214751423] [2021-08-21 11:55:52,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:55:52,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:52,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:55:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=790, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:55:52,163 INFO L87 Difference]: Start difference. First operand 2501 states and 6540 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:54,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:54,045 INFO L93 Difference]: Finished difference Result 2638 states and 6796 transitions. [2021-08-21 11:55:54,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:55:54,045 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:54,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:54,049 INFO L225 Difference]: With dead ends: 2638 [2021-08-21 11:55:54,049 INFO L226 Difference]: Without dead ends: 2481 [2021-08-21 11:55:54,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1713.5ms TimeCoverageRelationStatistics Valid=513, Invalid=2567, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:55:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2481 states. [2021-08-21 11:55:54,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2481 to 2441. [2021-08-21 11:55:54,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2441 states, 2440 states have (on average 2.6327868852459018) internal successors, (6424), 2440 states have internal predecessors, (6424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2441 states to 2441 states and 6424 transitions. [2021-08-21 11:55:54,072 INFO L78 Accepts]: Start accepts. Automaton has 2441 states and 6424 transitions. Word has length 119 [2021-08-21 11:55:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:54,072 INFO L470 AbstractCegarLoop]: Abstraction has 2441 states and 6424 transitions. [2021-08-21 11:55:54,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 2441 states and 6424 transitions. [2021-08-21 11:55:54,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:54,074 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:54,075 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:54,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2021-08-21 11:55:54,075 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:54,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:54,075 INFO L82 PathProgramCache]: Analyzing trace with hash 210050159, now seen corresponding path program 177 times [2021-08-21 11:55:54,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:54,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820116726] [2021-08-21 11:55:54,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:54,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:54,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:54,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:54,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820116726] [2021-08-21 11:55:54,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820116726] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:54,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:54,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:54,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277139972] [2021-08-21 11:55:54,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:54,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:54,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:54,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:54,928 INFO L87 Difference]: Start difference. First operand 2441 states and 6424 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:57,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:55:57,413 INFO L93 Difference]: Finished difference Result 2611 states and 6745 transitions. [2021-08-21 11:55:57,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:55:57,414 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:55:57,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:55:57,417 INFO L225 Difference]: With dead ends: 2611 [2021-08-21 11:55:57,417 INFO L226 Difference]: Without dead ends: 2457 [2021-08-21 11:55:57,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 2223.1ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:55:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2021-08-21 11:55:57,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2425. [2021-08-21 11:55:57,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2425 states, 2424 states have (on average 2.637788778877888) internal successors, (6394), 2424 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 6394 transitions. [2021-08-21 11:55:57,440 INFO L78 Accepts]: Start accepts. Automaton has 2425 states and 6394 transitions. Word has length 119 [2021-08-21 11:55:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:55:57,440 INFO L470 AbstractCegarLoop]: Abstraction has 2425 states and 6394 transitions. [2021-08-21 11:55:57,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:55:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2425 states and 6394 transitions. [2021-08-21 11:55:57,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:55:57,442 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:55:57,443 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:55:57,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2021-08-21 11:55:57,443 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:55:57,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:55:57,443 INFO L82 PathProgramCache]: Analyzing trace with hash 439693367, now seen corresponding path program 178 times [2021-08-21 11:55:57,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:55:57,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528056575] [2021-08-21 11:55:57,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:55:57,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:55:57,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:55:58,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:55:58,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:55:58,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528056575] [2021-08-21 11:55:58,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528056575] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:55:58,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:55:58,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:55:58,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847806696] [2021-08-21 11:55:58,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:55:58,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:55:58,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:55:58,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:55:58,377 INFO L87 Difference]: Start difference. First operand 2425 states and 6394 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:00,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:00,981 INFO L93 Difference]: Finished difference Result 2685 states and 6922 transitions. [2021-08-21 11:56:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:56:00,981 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:00,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:00,984 INFO L225 Difference]: With dead ends: 2685 [2021-08-21 11:56:00,984 INFO L226 Difference]: Without dead ends: 2547 [2021-08-21 11:56:00,985 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2292.0ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:56:00,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2021-08-21 11:56:01,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2437. [2021-08-21 11:56:01,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 2.6338259441707716) internal successors, (6416), 2436 states have internal predecessors, (6416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 6416 transitions. [2021-08-21 11:56:01,007 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 6416 transitions. Word has length 119 [2021-08-21 11:56:01,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:01,007 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 6416 transitions. [2021-08-21 11:56:01,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:01,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 6416 transitions. [2021-08-21 11:56:01,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:01,009 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:01,009 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:01,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2021-08-21 11:56:01,009 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:01,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:01,010 INFO L82 PathProgramCache]: Analyzing trace with hash -560410919, now seen corresponding path program 179 times [2021-08-21 11:56:01,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:01,010 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347076063] [2021-08-21 11:56:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:01,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:01,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:01,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:01,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347076063] [2021-08-21 11:56:01,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347076063] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:01,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:01,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:01,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000287940] [2021-08-21 11:56:01,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:01,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:01,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:01,903 INFO L87 Difference]: Start difference. First operand 2437 states and 6416 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:04,542 INFO L93 Difference]: Finished difference Result 2709 states and 6982 transitions. [2021-08-21 11:56:04,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:56:04,543 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:04,546 INFO L225 Difference]: With dead ends: 2709 [2021-08-21 11:56:04,546 INFO L226 Difference]: Without dead ends: 2577 [2021-08-21 11:56:04,547 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 2393.1ms TimeCoverageRelationStatistics Valid=481, Invalid=2381, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:56:04,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2577 states. [2021-08-21 11:56:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2577 to 2439. [2021-08-21 11:56:04,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2438 states have (on average 2.632895816242822) internal successors, (6419), 2438 states have internal predecessors, (6419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 6419 transitions. [2021-08-21 11:56:04,569 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 6419 transitions. Word has length 119 [2021-08-21 11:56:04,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:04,570 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 6419 transitions. [2021-08-21 11:56:04,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 6419 transitions. [2021-08-21 11:56:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:04,572 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:04,572 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:04,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2021-08-21 11:56:04,572 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:04,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:04,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1419440885, now seen corresponding path program 180 times [2021-08-21 11:56:04,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:04,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096723562] [2021-08-21 11:56:04,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:04,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:05,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:05,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096723562] [2021-08-21 11:56:05,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096723562] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:05,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:05,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:05,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746252432] [2021-08-21 11:56:05,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:05,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:05,420 INFO L87 Difference]: Start difference. First operand 2439 states and 6419 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:07,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:07,648 INFO L93 Difference]: Finished difference Result 2878 states and 7313 transitions. [2021-08-21 11:56:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-21 11:56:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:07,651 INFO L225 Difference]: With dead ends: 2878 [2021-08-21 11:56:07,651 INFO L226 Difference]: Without dead ends: 2725 [2021-08-21 11:56:07,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 1923.6ms TimeCoverageRelationStatistics Valid=536, Invalid=2656, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:56:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2021-08-21 11:56:07,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2431. [2021-08-21 11:56:07,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 2430 states have (on average 2.6358024691358026) internal successors, (6405), 2430 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 6405 transitions. [2021-08-21 11:56:07,673 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 6405 transitions. Word has length 119 [2021-08-21 11:56:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:07,673 INFO L470 AbstractCegarLoop]: Abstraction has 2431 states and 6405 transitions. [2021-08-21 11:56:07,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 6405 transitions. [2021-08-21 11:56:07,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:07,676 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:07,676 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:07,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2021-08-21 11:56:07,676 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:07,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:07,676 INFO L82 PathProgramCache]: Analyzing trace with hash 329692743, now seen corresponding path program 181 times [2021-08-21 11:56:07,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:07,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334450785] [2021-08-21 11:56:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:07,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:08,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:08,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334450785] [2021-08-21 11:56:08,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334450785] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:08,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:08,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:08,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180477212] [2021-08-21 11:56:08,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:08,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:08,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:08,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:08,303 INFO L87 Difference]: Start difference. First operand 2431 states and 6405 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:10,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:10,471 INFO L93 Difference]: Finished difference Result 2632 states and 6813 transitions. [2021-08-21 11:56:10,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:56:10,471 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:10,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:10,474 INFO L225 Difference]: With dead ends: 2632 [2021-08-21 11:56:10,474 INFO L226 Difference]: Without dead ends: 2525 [2021-08-21 11:56:10,474 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 1858.4ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:56:10,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2525 states. [2021-08-21 11:56:10,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2525 to 2427. [2021-08-21 11:56:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 2426 states have (on average 2.636850783182193) internal successors, (6397), 2426 states have internal predecessors, (6397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:10,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 6397 transitions. [2021-08-21 11:56:10,495 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 6397 transitions. Word has length 119 [2021-08-21 11:56:10,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:10,496 INFO L470 AbstractCegarLoop]: Abstraction has 2427 states and 6397 transitions. [2021-08-21 11:56:10,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:10,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 6397 transitions. [2021-08-21 11:56:10,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:10,498 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:10,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:10,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2021-08-21 11:56:10,498 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:10,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:10,498 INFO L82 PathProgramCache]: Analyzing trace with hash -56734373, now seen corresponding path program 182 times [2021-08-21 11:56:10,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:10,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102156677] [2021-08-21 11:56:10,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:10,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:11,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:11,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102156677] [2021-08-21 11:56:11,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102156677] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:11,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:11,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:11,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467530904] [2021-08-21 11:56:11,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:11,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:11,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:11,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:11,404 INFO L87 Difference]: Start difference. First operand 2427 states and 6397 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:13,900 INFO L93 Difference]: Finished difference Result 2633 states and 6804 transitions. [2021-08-21 11:56:13,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:56:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:13,904 INFO L225 Difference]: With dead ends: 2633 [2021-08-21 11:56:13,904 INFO L226 Difference]: Without dead ends: 2495 [2021-08-21 11:56:13,904 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2193.8ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:56:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2495 states. [2021-08-21 11:56:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2495 to 2431. [2021-08-21 11:56:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2431 states, 2430 states have (on average 2.6358024691358026) internal successors, (6405), 2430 states have internal predecessors, (6405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 6405 transitions. [2021-08-21 11:56:13,926 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 6405 transitions. Word has length 119 [2021-08-21 11:56:13,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:13,926 INFO L470 AbstractCegarLoop]: Abstraction has 2431 states and 6405 transitions. [2021-08-21 11:56:13,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:13,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 6405 transitions. [2021-08-21 11:56:13,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:13,929 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:13,929 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:13,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2021-08-21 11:56:13,929 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:13,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash -814233331, now seen corresponding path program 183 times [2021-08-21 11:56:13,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:13,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108984499] [2021-08-21 11:56:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:13,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:14,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:14,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:14,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108984499] [2021-08-21 11:56:14,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108984499] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:14,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:14,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:14,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459025981] [2021-08-21 11:56:14,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:14,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:14,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:14,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:14,818 INFO L87 Difference]: Start difference. First operand 2431 states and 6405 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:17,221 INFO L93 Difference]: Finished difference Result 2592 states and 6723 transitions. [2021-08-21 11:56:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:56:17,221 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:17,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:17,225 INFO L225 Difference]: With dead ends: 2592 [2021-08-21 11:56:17,225 INFO L226 Difference]: Without dead ends: 2487 [2021-08-21 11:56:17,225 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2160.3ms TimeCoverageRelationStatistics Valid=447, Invalid=2205, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:56:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2021-08-21 11:56:17,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2435. [2021-08-21 11:56:17,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2434 states have (on average 2.633114215283484) internal successors, (6409), 2434 states have internal predecessors, (6409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:17,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 6409 transitions. [2021-08-21 11:56:17,250 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 6409 transitions. Word has length 119 [2021-08-21 11:56:17,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:17,250 INFO L470 AbstractCegarLoop]: Abstraction has 2435 states and 6409 transitions. [2021-08-21 11:56:17,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 6409 transitions. [2021-08-21 11:56:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:17,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:17,252 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:17,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2021-08-21 11:56:17,253 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:17,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:17,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1475773667, now seen corresponding path program 184 times [2021-08-21 11:56:17,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:17,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408063243] [2021-08-21 11:56:17,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:17,253 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:18,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:18,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408063243] [2021-08-21 11:56:18,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408063243] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:18,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:18,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:18,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392268037] [2021-08-21 11:56:18,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:18,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:18,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:18,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:18,141 INFO L87 Difference]: Start difference. First operand 2435 states and 6409 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:20,681 INFO L93 Difference]: Finished difference Result 2626 states and 6794 transitions. [2021-08-21 11:56:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:56:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:20,684 INFO L225 Difference]: With dead ends: 2626 [2021-08-21 11:56:20,685 INFO L226 Difference]: Without dead ends: 2521 [2021-08-21 11:56:20,685 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 2250.1ms TimeCoverageRelationStatistics Valid=452, Invalid=2304, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:56:20,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2021-08-21 11:56:20,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2437. [2021-08-21 11:56:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 2.632183908045977) internal successors, (6412), 2436 states have internal predecessors, (6412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 6412 transitions. [2021-08-21 11:56:20,727 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 6412 transitions. Word has length 119 [2021-08-21 11:56:20,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:20,727 INFO L470 AbstractCegarLoop]: Abstraction has 2437 states and 6412 transitions. [2021-08-21 11:56:20,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 6412 transitions. [2021-08-21 11:56:20,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:20,729 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:20,729 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:20,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2021-08-21 11:56:20,729 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:20,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1889542063, now seen corresponding path program 185 times [2021-08-21 11:56:20,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:20,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800747800] [2021-08-21 11:56:20,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:20,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:21,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:21,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800747800] [2021-08-21 11:56:21,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800747800] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:21,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:21,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:21,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266802740] [2021-08-21 11:56:21,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:21,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:21,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:21,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:21,644 INFO L87 Difference]: Start difference. First operand 2437 states and 6412 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:23,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:23,877 INFO L93 Difference]: Finished difference Result 2582 states and 6698 transitions. [2021-08-21 11:56:23,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:56:23,877 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:23,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:23,880 INFO L225 Difference]: With dead ends: 2582 [2021-08-21 11:56:23,880 INFO L226 Difference]: Without dead ends: 2461 [2021-08-21 11:56:23,880 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 2036.8ms TimeCoverageRelationStatistics Valid=448, Invalid=2204, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:56:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-08-21 11:56:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2413. [2021-08-21 11:56:23,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2412 states have (on average 2.640961857379768) internal successors, (6370), 2412 states have internal predecessors, (6370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 6370 transitions. [2021-08-21 11:56:23,902 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 6370 transitions. Word has length 119 [2021-08-21 11:56:23,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:23,902 INFO L470 AbstractCegarLoop]: Abstraction has 2413 states and 6370 transitions. [2021-08-21 11:56:23,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:23,902 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 6370 transitions. [2021-08-21 11:56:23,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:23,904 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:23,904 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:23,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2021-08-21 11:56:23,904 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:23,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:23,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1654910175, now seen corresponding path program 186 times [2021-08-21 11:56:23,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:23,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578244603] [2021-08-21 11:56:23,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:23,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:24,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:24,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:24,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578244603] [2021-08-21 11:56:24,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578244603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:24,115 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:24,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:56:24,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435086998] [2021-08-21 11:56:24,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:56:24,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:24,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:56:24,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:56:24,115 INFO L87 Difference]: Start difference. First operand 2413 states and 6370 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:24,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:24,529 INFO L93 Difference]: Finished difference Result 3207 states and 8157 transitions. [2021-08-21 11:56:24,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-21 11:56:24,529 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:24,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:24,533 INFO L225 Difference]: With dead ends: 3207 [2021-08-21 11:56:24,534 INFO L226 Difference]: Without dead ends: 3207 [2021-08-21 11:56:24,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 314.2ms TimeCoverageRelationStatistics Valid=267, Invalid=789, Unknown=0, NotChecked=0, Total=1056 [2021-08-21 11:56:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3207 states. [2021-08-21 11:56:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3207 to 2471. [2021-08-21 11:56:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2471 states, 2470 states have (on average 2.593927125506073) internal successors, (6407), 2470 states have internal predecessors, (6407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:24,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2471 states to 2471 states and 6407 transitions. [2021-08-21 11:56:24,560 INFO L78 Accepts]: Start accepts. Automaton has 2471 states and 6407 transitions. Word has length 119 [2021-08-21 11:56:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:24,560 INFO L470 AbstractCegarLoop]: Abstraction has 2471 states and 6407 transitions. [2021-08-21 11:56:24,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:24,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2471 states and 6407 transitions. [2021-08-21 11:56:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:24,562 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:24,562 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:24,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2021-08-21 11:56:24,562 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:24,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:24,563 INFO L82 PathProgramCache]: Analyzing trace with hash 309577523, now seen corresponding path program 187 times [2021-08-21 11:56:24,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:24,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375307356] [2021-08-21 11:56:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:24,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:25,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:25,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375307356] [2021-08-21 11:56:25,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375307356] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:25,306 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:25,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:56:25,307 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271018440] [2021-08-21 11:56:25,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:56:25,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:25,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:56:25,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:25,307 INFO L87 Difference]: Start difference. First operand 2471 states and 6407 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:27,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:27,611 INFO L93 Difference]: Finished difference Result 2945 states and 7441 transitions. [2021-08-21 11:56:27,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:56:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:27,614 INFO L225 Difference]: With dead ends: 2945 [2021-08-21 11:56:27,614 INFO L226 Difference]: Without dead ends: 2777 [2021-08-21 11:56:27,615 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 1958.2ms TimeCoverageRelationStatistics Valid=679, Invalid=3227, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:56:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2777 states. [2021-08-21 11:56:27,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2777 to 2477. [2021-08-21 11:56:27,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2476 states have (on average 2.5908723747980615) internal successors, (6415), 2476 states have internal predecessors, (6415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:27,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 6415 transitions. [2021-08-21 11:56:27,638 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 6415 transitions. Word has length 119 [2021-08-21 11:56:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:27,638 INFO L470 AbstractCegarLoop]: Abstraction has 2477 states and 6415 transitions. [2021-08-21 11:56:27,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:27,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 6415 transitions. [2021-08-21 11:56:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:27,640 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:27,640 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:27,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2021-08-21 11:56:27,640 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:27,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:27,641 INFO L82 PathProgramCache]: Analyzing trace with hash -671667529, now seen corresponding path program 188 times [2021-08-21 11:56:27,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:27,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163143002] [2021-08-21 11:56:27,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:27,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:28,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:28,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:28,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163143002] [2021-08-21 11:56:28,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163143002] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:28,352 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:28,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:56:28,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629080239] [2021-08-21 11:56:28,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:56:28,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:28,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:56:28,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:28,353 INFO L87 Difference]: Start difference. First operand 2477 states and 6415 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:31,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:31,367 INFO L93 Difference]: Finished difference Result 3303 states and 8339 transitions. [2021-08-21 11:56:31,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:56:31,367 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:31,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:31,372 INFO L225 Difference]: With dead ends: 3303 [2021-08-21 11:56:31,372 INFO L226 Difference]: Without dead ends: 3137 [2021-08-21 11:56:31,372 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 746 ImplicationChecksByTransitivity, 2499.7ms TimeCoverageRelationStatistics Valid=617, Invalid=3289, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:56:31,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2021-08-21 11:56:31,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 2477. [2021-08-21 11:56:31,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2477 states, 2476 states have (on average 2.582794830371567) internal successors, (6395), 2476 states have internal predecessors, (6395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:31,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2477 states to 2477 states and 6395 transitions. [2021-08-21 11:56:31,398 INFO L78 Accepts]: Start accepts. Automaton has 2477 states and 6395 transitions. Word has length 119 [2021-08-21 11:56:31,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:31,399 INFO L470 AbstractCegarLoop]: Abstraction has 2477 states and 6395 transitions. [2021-08-21 11:56:31,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:31,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2477 states and 6395 transitions. [2021-08-21 11:56:31,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:31,401 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:31,401 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:31,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2021-08-21 11:56:31,401 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:31,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:31,402 INFO L82 PathProgramCache]: Analyzing trace with hash 109825375, now seen corresponding path program 189 times [2021-08-21 11:56:31,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:31,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733450200] [2021-08-21 11:56:31,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:31,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:31,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:32,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:32,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:32,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733450200] [2021-08-21 11:56:32,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733450200] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:32,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:32,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:32,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100096737] [2021-08-21 11:56:32,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:32,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:32,326 INFO L87 Difference]: Start difference. First operand 2477 states and 6395 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:35,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:35,084 INFO L93 Difference]: Finished difference Result 3575 states and 9097 transitions. [2021-08-21 11:56:35,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:56:35,085 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:35,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:35,089 INFO L225 Difference]: With dead ends: 3575 [2021-08-21 11:56:35,089 INFO L226 Difference]: Without dead ends: 3184 [2021-08-21 11:56:35,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 2379.1ms TimeCoverageRelationStatistics Valid=619, Invalid=2921, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:56:35,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2021-08-21 11:56:35,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 2537. [2021-08-21 11:56:35,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2537 states, 2536 states have (on average 2.564274447949527) internal successors, (6503), 2536 states have internal predecessors, (6503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:35,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2537 states to 2537 states and 6503 transitions. [2021-08-21 11:56:35,123 INFO L78 Accepts]: Start accepts. Automaton has 2537 states and 6503 transitions. Word has length 119 [2021-08-21 11:56:35,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:35,123 INFO L470 AbstractCegarLoop]: Abstraction has 2537 states and 6503 transitions. [2021-08-21 11:56:35,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:35,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2537 states and 6503 transitions. [2021-08-21 11:56:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:35,126 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:35,127 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:35,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2021-08-21 11:56:35,127 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:35,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:35,127 INFO L82 PathProgramCache]: Analyzing trace with hash -652358375, now seen corresponding path program 190 times [2021-08-21 11:56:35,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:35,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090518019] [2021-08-21 11:56:35,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:35,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:35,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:35,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:35,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090518019] [2021-08-21 11:56:35,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090518019] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:35,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:35,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:35,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819598083] [2021-08-21 11:56:35,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:35,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:35,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:35,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:35,787 INFO L87 Difference]: Start difference. First operand 2537 states and 6503 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:38,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:38,278 INFO L93 Difference]: Finished difference Result 3290 states and 8290 transitions. [2021-08-21 11:56:38,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:56:38,279 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:38,283 INFO L225 Difference]: With dead ends: 3290 [2021-08-21 11:56:38,283 INFO L226 Difference]: Without dead ends: 2872 [2021-08-21 11:56:38,283 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 681 ImplicationChecksByTransitivity, 2145.5ms TimeCoverageRelationStatistics Valid=640, Invalid=3142, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:56:38,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-08-21 11:56:38,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2225. [2021-08-21 11:56:38,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2225 states, 2224 states have (on average 2.5611510791366907) internal successors, (5696), 2224 states have internal predecessors, (5696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 5696 transitions. [2021-08-21 11:56:38,306 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 5696 transitions. Word has length 119 [2021-08-21 11:56:38,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:38,306 INFO L470 AbstractCegarLoop]: Abstraction has 2225 states and 5696 transitions. [2021-08-21 11:56:38,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 5696 transitions. [2021-08-21 11:56:38,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:38,308 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:38,308 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:38,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2021-08-21 11:56:38,308 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:38,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:38,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1702209145, now seen corresponding path program 191 times [2021-08-21 11:56:38,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:38,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857388361] [2021-08-21 11:56:38,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:38,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:39,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:39,261 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:39,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857388361] [2021-08-21 11:56:39,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857388361] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:39,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:39,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:56:39,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480852636] [2021-08-21 11:56:39,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:56:39,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:39,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:56:39,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:39,262 INFO L87 Difference]: Start difference. First operand 2225 states and 5696 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:41,733 INFO L93 Difference]: Finished difference Result 2597 states and 6433 transitions. [2021-08-21 11:56:41,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:56:41,733 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:41,736 INFO L225 Difference]: With dead ends: 2597 [2021-08-21 11:56:41,736 INFO L226 Difference]: Without dead ends: 2387 [2021-08-21 11:56:41,736 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 2162.9ms TimeCoverageRelationStatistics Valid=626, Invalid=3034, Unknown=0, NotChecked=0, Total=3660 [2021-08-21 11:56:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2021-08-21 11:56:41,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2215. [2021-08-21 11:56:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 2214 states have (on average 2.568654019873532) internal successors, (5687), 2214 states have internal predecessors, (5687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:41,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 5687 transitions. [2021-08-21 11:56:41,756 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 5687 transitions. Word has length 119 [2021-08-21 11:56:41,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:41,756 INFO L470 AbstractCegarLoop]: Abstraction has 2215 states and 5687 transitions. [2021-08-21 11:56:41,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:41,757 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 5687 transitions. [2021-08-21 11:56:41,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:41,759 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:41,759 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:41,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2021-08-21 11:56:41,759 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:41,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:41,759 INFO L82 PathProgramCache]: Analyzing trace with hash -73291739, now seen corresponding path program 192 times [2021-08-21 11:56:41,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:41,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182746278] [2021-08-21 11:56:41,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:41,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:42,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:42,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182746278] [2021-08-21 11:56:42,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182746278] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:42,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:42,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:42,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536388157] [2021-08-21 11:56:42,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:42,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:42,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:42,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:42,413 INFO L87 Difference]: Start difference. First operand 2215 states and 5687 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:45,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:45,542 INFO L93 Difference]: Finished difference Result 2541 states and 6325 transitions. [2021-08-21 11:56:45,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:56:45,542 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:45,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:45,546 INFO L225 Difference]: With dead ends: 2541 [2021-08-21 11:56:45,546 INFO L226 Difference]: Without dead ends: 2386 [2021-08-21 11:56:45,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 2503.4ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:56:45,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2021-08-21 11:56:45,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 2221. [2021-08-21 11:56:45,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2221 states, 2220 states have (on average 2.563963963963964) internal successors, (5692), 2220 states have internal predecessors, (5692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2221 states to 2221 states and 5692 transitions. [2021-08-21 11:56:45,570 INFO L78 Accepts]: Start accepts. Automaton has 2221 states and 5692 transitions. Word has length 119 [2021-08-21 11:56:45,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:45,571 INFO L470 AbstractCegarLoop]: Abstraction has 2221 states and 5692 transitions. [2021-08-21 11:56:45,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:45,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2221 states and 5692 transitions. [2021-08-21 11:56:45,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:45,573 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:45,573 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:45,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2021-08-21 11:56:45,573 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:45,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:45,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1581399849, now seen corresponding path program 193 times [2021-08-21 11:56:45,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:45,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636092441] [2021-08-21 11:56:45,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:45,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:46,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:46,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:46,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636092441] [2021-08-21 11:56:46,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636092441] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:46,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:46,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:56:46,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660639706] [2021-08-21 11:56:46,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:56:46,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:46,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:56:46,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:46,543 INFO L87 Difference]: Start difference. First operand 2221 states and 5692 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:49,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:49,472 INFO L93 Difference]: Finished difference Result 3437 states and 8699 transitions. [2021-08-21 11:56:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:56:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:49,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:49,477 INFO L225 Difference]: With dead ends: 3437 [2021-08-21 11:56:49,477 INFO L226 Difference]: Without dead ends: 3292 [2021-08-21 11:56:49,477 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 2475.7ms TimeCoverageRelationStatistics Valid=602, Invalid=3180, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:56:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2021-08-21 11:56:49,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2509. [2021-08-21 11:56:49,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2509 states, 2508 states have (on average 2.5861244019138754) internal successors, (6486), 2508 states have internal predecessors, (6486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2509 states to 2509 states and 6486 transitions. [2021-08-21 11:56:49,505 INFO L78 Accepts]: Start accepts. Automaton has 2509 states and 6486 transitions. Word has length 119 [2021-08-21 11:56:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:49,505 INFO L470 AbstractCegarLoop]: Abstraction has 2509 states and 6486 transitions. [2021-08-21 11:56:49,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:49,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2509 states and 6486 transitions. [2021-08-21 11:56:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:49,507 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:49,508 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:49,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2021-08-21 11:56:49,508 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:49,508 INFO L82 PathProgramCache]: Analyzing trace with hash -202963031, now seen corresponding path program 194 times [2021-08-21 11:56:49,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:49,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568733455] [2021-08-21 11:56:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:49,508 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:50,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:50,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:50,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568733455] [2021-08-21 11:56:50,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568733455] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:50,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:50,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:50,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767043355] [2021-08-21 11:56:50,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:50,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:50,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:50,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:50,442 INFO L87 Difference]: Start difference. First operand 2509 states and 6486 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:53,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:53,679 INFO L93 Difference]: Finished difference Result 3772 states and 9583 transitions. [2021-08-21 11:56:53,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-21 11:56:53,679 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:53,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:53,683 INFO L225 Difference]: With dead ends: 3772 [2021-08-21 11:56:53,683 INFO L226 Difference]: Without dead ends: 2990 [2021-08-21 11:56:53,684 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 2777.9ms TimeCoverageRelationStatistics Valid=656, Invalid=3250, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:56:53,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-08-21 11:56:53,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2245. [2021-08-21 11:56:53,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2245 states, 2244 states have (on average 2.552584670231729) internal successors, (5728), 2244 states have internal predecessors, (5728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:53,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 5728 transitions. [2021-08-21 11:56:53,710 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 5728 transitions. Word has length 119 [2021-08-21 11:56:53,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:53,710 INFO L470 AbstractCegarLoop]: Abstraction has 2245 states and 5728 transitions. [2021-08-21 11:56:53,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:53,710 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 5728 transitions. [2021-08-21 11:56:53,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:53,712 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:53,712 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:53,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2021-08-21 11:56:53,712 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:53,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:53,713 INFO L82 PathProgramCache]: Analyzing trace with hash -2082778961, now seen corresponding path program 195 times [2021-08-21 11:56:53,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:53,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891685808] [2021-08-21 11:56:53,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:53,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:54,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:54,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891685808] [2021-08-21 11:56:54,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891685808] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:54,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:54,557 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:56:54,557 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404863954] [2021-08-21 11:56:54,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:56:54,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:54,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:56:54,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:54,558 INFO L87 Difference]: Start difference. First operand 2245 states and 5728 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:57,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:57,767 INFO L93 Difference]: Finished difference Result 2751 states and 6861 transitions. [2021-08-21 11:56:57,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:56:57,767 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:57,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:57,771 INFO L225 Difference]: With dead ends: 2751 [2021-08-21 11:56:57,771 INFO L226 Difference]: Without dead ends: 2544 [2021-08-21 11:56:57,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 712 ImplicationChecksByTransitivity, 2583.0ms TimeCoverageRelationStatistics Valid=653, Invalid=3129, Unknown=0, NotChecked=0, Total=3782 [2021-08-21 11:56:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2021-08-21 11:56:57,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2185. [2021-08-21 11:56:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2185 states, 2184 states have (on average 2.56959706959707) internal successors, (5612), 2184 states have internal predecessors, (5612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:57,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2185 states to 2185 states and 5612 transitions. [2021-08-21 11:56:57,792 INFO L78 Accepts]: Start accepts. Automaton has 2185 states and 5612 transitions. Word has length 119 [2021-08-21 11:56:57,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:57,792 INFO L470 AbstractCegarLoop]: Abstraction has 2185 states and 5612 transitions. [2021-08-21 11:56:57,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2185 states and 5612 transitions. [2021-08-21 11:56:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:57,794 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:57,794 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:57,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2021-08-21 11:56:57,794 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:57,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:57,794 INFO L82 PathProgramCache]: Analyzing trace with hash -465153731, now seen corresponding path program 196 times [2021-08-21 11:56:57,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:57,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727758419] [2021-08-21 11:56:57,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:57,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:58,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:58,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727758419] [2021-08-21 11:56:58,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727758419] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:58,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:58,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:56:58,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359054403] [2021-08-21 11:56:58,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:56:58,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:58,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:56:58,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:56:58,077 INFO L87 Difference]: Start difference. First operand 2185 states and 5612 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:58,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:56:58,580 INFO L93 Difference]: Finished difference Result 2641 states and 6562 transitions. [2021-08-21 11:56:58,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:56:58,580 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:56:58,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:56:58,583 INFO L225 Difference]: With dead ends: 2641 [2021-08-21 11:56:58,583 INFO L226 Difference]: Without dead ends: 2585 [2021-08-21 11:56:58,584 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 398.5ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:56:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2585 states. [2021-08-21 11:56:58,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2585 to 2291. [2021-08-21 11:56:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2291 states, 2290 states have (on average 2.558515283842795) internal successors, (5859), 2290 states have internal predecessors, (5859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2291 states to 2291 states and 5859 transitions. [2021-08-21 11:56:58,606 INFO L78 Accepts]: Start accepts. Automaton has 2291 states and 5859 transitions. Word has length 119 [2021-08-21 11:56:58,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:56:58,606 INFO L470 AbstractCegarLoop]: Abstraction has 2291 states and 5859 transitions. [2021-08-21 11:56:58,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:56:58,606 INFO L276 IsEmpty]: Start isEmpty. Operand 2291 states and 5859 transitions. [2021-08-21 11:56:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:56:58,609 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:56:58,609 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:56:58,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2021-08-21 11:56:58,609 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:56:58,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:56:58,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1036398821, now seen corresponding path program 197 times [2021-08-21 11:56:58,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:56:58,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819314242] [2021-08-21 11:56:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:56:58,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:56:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:56:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:56:59,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:56:59,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819314242] [2021-08-21 11:56:59,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819314242] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:56:59,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:56:59,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:56:59,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12701029] [2021-08-21 11:56:59,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:56:59,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:56:59,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:56:59,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:56:59,477 INFO L87 Difference]: Start difference. First operand 2291 states and 5859 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:02,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:02,569 INFO L93 Difference]: Finished difference Result 2689 states and 6671 transitions. [2021-08-21 11:57:02,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:57:02,569 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:02,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:02,573 INFO L225 Difference]: With dead ends: 2689 [2021-08-21 11:57:02,573 INFO L226 Difference]: Without dead ends: 2536 [2021-08-21 11:57:02,573 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 635 ImplicationChecksByTransitivity, 2659.9ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:57:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2021-08-21 11:57:02,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2331. [2021-08-21 11:57:02,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2331 states, 2330 states have (on average 2.554077253218884) internal successors, (5951), 2330 states have internal predecessors, (5951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:02,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2331 states to 2331 states and 5951 transitions. [2021-08-21 11:57:02,596 INFO L78 Accepts]: Start accepts. Automaton has 2331 states and 5951 transitions. Word has length 119 [2021-08-21 11:57:02,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:02,596 INFO L470 AbstractCegarLoop]: Abstraction has 2331 states and 5951 transitions. [2021-08-21 11:57:02,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:02,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2331 states and 5951 transitions. [2021-08-21 11:57:02,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:02,599 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:02,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:02,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2021-08-21 11:57:02,599 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:02,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:02,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1465878007, now seen corresponding path program 198 times [2021-08-21 11:57:02,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:02,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530422901] [2021-08-21 11:57:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:02,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:03,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:03,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530422901] [2021-08-21 11:57:03,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530422901] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:03,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:03,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:03,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688086233] [2021-08-21 11:57:03,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:03,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:03,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:03,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:03,442 INFO L87 Difference]: Start difference. First operand 2331 states and 5951 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:06,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:06,618 INFO L93 Difference]: Finished difference Result 2731 states and 6758 transitions. [2021-08-21 11:57:06,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:57:06,618 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:06,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:06,622 INFO L225 Difference]: With dead ends: 2731 [2021-08-21 11:57:06,622 INFO L226 Difference]: Without dead ends: 2572 [2021-08-21 11:57:06,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 2667.4ms TimeCoverageRelationStatistics Valid=615, Invalid=2925, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:57:06,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2021-08-21 11:57:06,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2335. [2021-08-21 11:57:06,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2335 states, 2334 states have (on average 2.5522707797772064) internal successors, (5957), 2334 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:06,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 5957 transitions. [2021-08-21 11:57:06,647 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 5957 transitions. Word has length 119 [2021-08-21 11:57:06,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:06,648 INFO L470 AbstractCegarLoop]: Abstraction has 2335 states and 5957 transitions. [2021-08-21 11:57:06,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:06,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 5957 transitions. [2021-08-21 11:57:06,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:06,650 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:06,651 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:06,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2021-08-21 11:57:06,651 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:06,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:06,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1879646403, now seen corresponding path program 199 times [2021-08-21 11:57:06,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:06,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928844973] [2021-08-21 11:57:06,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:06,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:07,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:07,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928844973] [2021-08-21 11:57:07,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928844973] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:07,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:07,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:07,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896646873] [2021-08-21 11:57:07,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:07,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:07,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:07,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:07,589 INFO L87 Difference]: Start difference. First operand 2335 states and 5957 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:10,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:10,861 INFO L93 Difference]: Finished difference Result 2707 states and 6699 transitions. [2021-08-21 11:57:10,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-21 11:57:10,861 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:10,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:10,864 INFO L225 Difference]: With dead ends: 2707 [2021-08-21 11:57:10,864 INFO L226 Difference]: Without dead ends: 2552 [2021-08-21 11:57:10,864 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 2888.0ms TimeCoverageRelationStatistics Valid=629, Invalid=2911, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:57:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2021-08-21 11:57:10,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2327. [2021-08-21 11:57:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2327 states, 2326 states have (on average 2.5537403267411865) internal successors, (5940), 2326 states have internal predecessors, (5940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2327 states to 2327 states and 5940 transitions. [2021-08-21 11:57:10,885 INFO L78 Accepts]: Start accepts. Automaton has 2327 states and 5940 transitions. Word has length 119 [2021-08-21 11:57:10,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:10,886 INFO L470 AbstractCegarLoop]: Abstraction has 2327 states and 5940 transitions. [2021-08-21 11:57:10,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 2327 states and 5940 transitions. [2021-08-21 11:57:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:10,888 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:10,888 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:10,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2021-08-21 11:57:10,888 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:10,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:10,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1710046331, now seen corresponding path program 200 times [2021-08-21 11:57:10,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:10,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157270811] [2021-08-21 11:57:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:10,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:11,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:11,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157270811] [2021-08-21 11:57:11,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157270811] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:11,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:11,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:11,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472440011] [2021-08-21 11:57:11,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:11,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:11,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:11,642 INFO L87 Difference]: Start difference. First operand 2327 states and 5940 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:14,539 INFO L93 Difference]: Finished difference Result 3709 states and 9366 transitions. [2021-08-21 11:57:14,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:57:14,539 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:14,545 INFO L225 Difference]: With dead ends: 3709 [2021-08-21 11:57:14,545 INFO L226 Difference]: Without dead ends: 3550 [2021-08-21 11:57:14,545 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 2421.3ms TimeCoverageRelationStatistics Valid=622, Invalid=3284, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:57:14,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2021-08-21 11:57:14,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 2399. [2021-08-21 11:57:14,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 2398 states have (on average 2.5592160133444537) internal successors, (6137), 2398 states have internal predecessors, (6137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 6137 transitions. [2021-08-21 11:57:14,572 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 6137 transitions. Word has length 119 [2021-08-21 11:57:14,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:14,572 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 6137 transitions. [2021-08-21 11:57:14,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:14,572 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 6137 transitions. [2021-08-21 11:57:14,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:14,574 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:14,574 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:14,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2021-08-21 11:57:14,574 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:14,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:14,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1874294345, now seen corresponding path program 201 times [2021-08-21 11:57:14,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:14,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738558820] [2021-08-21 11:57:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:14,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:15,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:15,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:15,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738558820] [2021-08-21 11:57:15,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738558820] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:15,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:15,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:15,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71276563] [2021-08-21 11:57:15,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:15,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:15,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:15,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:15,640 INFO L87 Difference]: Start difference. First operand 2399 states and 6137 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:18,349 INFO L93 Difference]: Finished difference Result 3936 states and 10069 transitions. [2021-08-21 11:57:18,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:57:18,349 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:18,354 INFO L225 Difference]: With dead ends: 3936 [2021-08-21 11:57:18,354 INFO L226 Difference]: Without dead ends: 3791 [2021-08-21 11:57:18,354 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2407.7ms TimeCoverageRelationStatistics Valid=573, Invalid=2967, Unknown=0, NotChecked=0, Total=3540 [2021-08-21 11:57:18,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3791 states. [2021-08-21 11:57:18,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3791 to 2663. [2021-08-21 11:57:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2662 states have (on average 2.567618332081142) internal successors, (6835), 2662 states have internal predecessors, (6835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:18,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 6835 transitions. [2021-08-21 11:57:18,382 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 6835 transitions. Word has length 119 [2021-08-21 11:57:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:18,382 INFO L470 AbstractCegarLoop]: Abstraction has 2663 states and 6835 transitions. [2021-08-21 11:57:18,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 6835 transitions. [2021-08-21 11:57:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:18,384 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:18,384 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:18,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2021-08-21 11:57:18,385 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:18,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:18,385 INFO L82 PathProgramCache]: Analyzing trace with hash 89931465, now seen corresponding path program 202 times [2021-08-21 11:57:18,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:18,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114230268] [2021-08-21 11:57:18,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:18,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:19,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:19,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:19,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114230268] [2021-08-21 11:57:19,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114230268] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:19,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:19,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:19,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751261751] [2021-08-21 11:57:19,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:19,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:19,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:19,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:19,271 INFO L87 Difference]: Start difference. First operand 2663 states and 6835 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:22,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:22,458 INFO L93 Difference]: Finished difference Result 4307 states and 10958 transitions. [2021-08-21 11:57:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-21 11:57:22,458 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:22,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:22,463 INFO L225 Difference]: With dead ends: 4307 [2021-08-21 11:57:22,463 INFO L226 Difference]: Without dead ends: 3428 [2021-08-21 11:57:22,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 830 ImplicationChecksByTransitivity, 2802.6ms TimeCoverageRelationStatistics Valid=699, Invalid=3461, Unknown=0, NotChecked=0, Total=4160 [2021-08-21 11:57:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3428 states. [2021-08-21 11:57:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3428 to 2315. [2021-08-21 11:57:22,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2314 states have (on average 2.5410544511668105) internal successors, (5880), 2314 states have internal predecessors, (5880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:22,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 5880 transitions. [2021-08-21 11:57:22,490 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 5880 transitions. Word has length 119 [2021-08-21 11:57:22,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:22,490 INFO L470 AbstractCegarLoop]: Abstraction has 2315 states and 5880 transitions. [2021-08-21 11:57:22,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:22,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 5880 transitions. [2021-08-21 11:57:22,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:22,492 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:22,492 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:22,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2021-08-21 11:57:22,492 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:22,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:22,492 INFO L82 PathProgramCache]: Analyzing trace with hash 664527551, now seen corresponding path program 203 times [2021-08-21 11:57:22,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:22,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365382943] [2021-08-21 11:57:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:22,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:23,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:23,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365382943] [2021-08-21 11:57:23,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365382943] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:23,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:23,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:23,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123422490] [2021-08-21 11:57:23,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:23,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:23,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:23,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:23,387 INFO L87 Difference]: Start difference. First operand 2315 states and 5880 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:26,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:26,751 INFO L93 Difference]: Finished difference Result 3023 states and 7538 transitions. [2021-08-21 11:57:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:57:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:26,754 INFO L225 Difference]: With dead ends: 3023 [2021-08-21 11:57:26,754 INFO L226 Difference]: Without dead ends: 2864 [2021-08-21 11:57:26,755 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 809 ImplicationChecksByTransitivity, 2847.2ms TimeCoverageRelationStatistics Valid=694, Invalid=3338, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:57:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2864 states. [2021-08-21 11:57:26,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2864 to 2319. [2021-08-21 11:57:26,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2319 states, 2318 states have (on average 2.5392579810181193) internal successors, (5886), 2318 states have internal predecessors, (5886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:26,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2319 states to 2319 states and 5886 transitions. [2021-08-21 11:57:26,777 INFO L78 Accepts]: Start accepts. Automaton has 2319 states and 5886 transitions. Word has length 119 [2021-08-21 11:57:26,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:26,777 INFO L470 AbstractCegarLoop]: Abstraction has 2319 states and 5886 transitions. [2021-08-21 11:57:26,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:26,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2319 states and 5886 transitions. [2021-08-21 11:57:26,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:26,779 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:26,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:26,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2021-08-21 11:57:26,779 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:26,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:26,779 INFO L82 PathProgramCache]: Analyzing trace with hash -802727043, now seen corresponding path program 204 times [2021-08-21 11:57:26,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:26,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670513572] [2021-08-21 11:57:26,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:26,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:27,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:27,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670513572] [2021-08-21 11:57:27,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670513572] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:27,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:27,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:27,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653435134] [2021-08-21 11:57:27,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:27,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:27,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:27,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:27,666 INFO L87 Difference]: Start difference. First operand 2319 states and 5886 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:31,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:31,141 INFO L93 Difference]: Finished difference Result 3007 states and 7497 transitions. [2021-08-21 11:57:31,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:57:31,142 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:31,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:31,146 INFO L225 Difference]: With dead ends: 3007 [2021-08-21 11:57:31,146 INFO L226 Difference]: Without dead ends: 2858 [2021-08-21 11:57:31,146 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 2906.4ms TimeCoverageRelationStatistics Valid=709, Invalid=3323, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:57:31,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2858 states. [2021-08-21 11:57:31,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2858 to 2315. [2021-08-21 11:57:31,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2314 states have (on average 2.5406222990492653) internal successors, (5879), 2314 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:31,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 5879 transitions. [2021-08-21 11:57:31,169 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 5879 transitions. Word has length 119 [2021-08-21 11:57:31,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:31,169 INFO L470 AbstractCegarLoop]: Abstraction has 2315 states and 5879 transitions. [2021-08-21 11:57:31,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:31,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 5879 transitions. [2021-08-21 11:57:31,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:31,171 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:31,172 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:31,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2021-08-21 11:57:31,172 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:31,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:31,172 INFO L82 PathProgramCache]: Analyzing trace with hash -620142979, now seen corresponding path program 205 times [2021-08-21 11:57:31,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:31,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253156811] [2021-08-21 11:57:31,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:31,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:31,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:32,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:32,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:32,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253156811] [2021-08-21 11:57:32,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253156811] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:32,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:32,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:32,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669503133] [2021-08-21 11:57:32,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:32,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:32,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:32,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=796, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:32,210 INFO L87 Difference]: Start difference. First operand 2315 states and 5879 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:35,544 INFO L93 Difference]: Finished difference Result 3775 states and 9517 transitions. [2021-08-21 11:57:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-21 11:57:35,544 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:35,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:35,550 INFO L225 Difference]: With dead ends: 3775 [2021-08-21 11:57:35,550 INFO L226 Difference]: Without dead ends: 3630 [2021-08-21 11:57:35,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 2692.0ms TimeCoverageRelationStatistics Valid=629, Invalid=3277, Unknown=0, NotChecked=0, Total=3906 [2021-08-21 11:57:35,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3630 states. [2021-08-21 11:57:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3630 to 2603. [2021-08-21 11:57:35,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2603 states, 2602 states have (on average 2.5645657186779403) internal successors, (6673), 2602 states have internal predecessors, (6673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:35,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2603 states to 2603 states and 6673 transitions. [2021-08-21 11:57:35,579 INFO L78 Accepts]: Start accepts. Automaton has 2603 states and 6673 transitions. Word has length 119 [2021-08-21 11:57:35,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:35,579 INFO L470 AbstractCegarLoop]: Abstraction has 2603 states and 6673 transitions. [2021-08-21 11:57:35,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:35,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2603 states and 6673 transitions. [2021-08-21 11:57:35,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:35,582 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:35,582 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:35,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2021-08-21 11:57:35,582 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:35,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1890461437, now seen corresponding path program 206 times [2021-08-21 11:57:35,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:35,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467909179] [2021-08-21 11:57:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:35,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:35,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:36,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:36,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467909179] [2021-08-21 11:57:36,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467909179] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:36,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:36,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:36,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36505090] [2021-08-21 11:57:36,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:36,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:36,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:36,261 INFO L87 Difference]: Start difference. First operand 2603 states and 6673 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:39,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:39,167 INFO L93 Difference]: Finished difference Result 4110 states and 10401 transitions. [2021-08-21 11:57:39,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-21 11:57:39,168 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:39,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:39,172 INFO L225 Difference]: With dead ends: 4110 [2021-08-21 11:57:39,172 INFO L226 Difference]: Without dead ends: 3328 [2021-08-21 11:57:39,172 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 2428.0ms TimeCoverageRelationStatistics Valid=687, Invalid=3345, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:57:39,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2021-08-21 11:57:39,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 2339. [2021-08-21 11:57:39,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2339 states, 2338 states have (on average 2.529940119760479) internal successors, (5915), 2338 states have internal predecessors, (5915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:39,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 5915 transitions. [2021-08-21 11:57:39,197 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 5915 transitions. Word has length 119 [2021-08-21 11:57:39,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:39,197 INFO L470 AbstractCegarLoop]: Abstraction has 2339 states and 5915 transitions. [2021-08-21 11:57:39,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:39,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 5915 transitions. [2021-08-21 11:57:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:39,199 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:39,199 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:39,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2021-08-21 11:57:39,199 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:39,200 INFO L82 PathProgramCache]: Analyzing trace with hash 10645507, now seen corresponding path program 207 times [2021-08-21 11:57:39,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:39,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057820031] [2021-08-21 11:57:39,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:39,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:40,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:40,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:40,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057820031] [2021-08-21 11:57:40,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057820031] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:40,170 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:40,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:57:40,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552435737] [2021-08-21 11:57:40,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:57:40,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:40,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:57:40,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:40,171 INFO L87 Difference]: Start difference. First operand 2339 states and 5915 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:43,604 INFO L93 Difference]: Finished difference Result 3077 states and 7651 transitions. [2021-08-21 11:57:43,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-21 11:57:43,604 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:43,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:43,608 INFO L225 Difference]: With dead ends: 3077 [2021-08-21 11:57:43,608 INFO L226 Difference]: Without dead ends: 2870 [2021-08-21 11:57:43,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 796 ImplicationChecksByTransitivity, 2950.3ms TimeCoverageRelationStatistics Valid=709, Invalid=3323, Unknown=0, NotChecked=0, Total=4032 [2021-08-21 11:57:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2021-08-21 11:57:43,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2231. [2021-08-21 11:57:43,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 2.5573991031390135) internal successors, (5703), 2230 states have internal predecessors, (5703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:43,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 5703 transitions. [2021-08-21 11:57:43,633 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 5703 transitions. Word has length 119 [2021-08-21 11:57:43,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:43,633 INFO L470 AbstractCegarLoop]: Abstraction has 2231 states and 5703 transitions. [2021-08-21 11:57:43,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:43,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 5703 transitions. [2021-08-21 11:57:43,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:43,635 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:43,635 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:43,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2021-08-21 11:57:43,635 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:43,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:43,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1912307463, now seen corresponding path program 208 times [2021-08-21 11:57:43,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:43,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339200086] [2021-08-21 11:57:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:43,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:44,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:44,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:44,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339200086] [2021-08-21 11:57:44,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339200086] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:44,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:44,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:44,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619005233] [2021-08-21 11:57:44,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:44,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:44,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:44,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:44,344 INFO L87 Difference]: Start difference. First operand 2231 states and 5703 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:46,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:46,695 INFO L93 Difference]: Finished difference Result 2589 states and 6409 transitions. [2021-08-21 11:57:46,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:57:46,696 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:46,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:46,699 INFO L225 Difference]: With dead ends: 2589 [2021-08-21 11:57:46,699 INFO L226 Difference]: Without dead ends: 2399 [2021-08-21 11:57:46,699 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 1977.0ms TimeCoverageRelationStatistics Valid=602, Invalid=2820, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:57:46,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2399 states. [2021-08-21 11:57:46,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2399 to 2191. [2021-08-21 11:57:46,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2191 states, 2190 states have (on average 2.563013698630137) internal successors, (5613), 2190 states have internal predecessors, (5613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:46,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2191 states to 2191 states and 5613 transitions. [2021-08-21 11:57:46,719 INFO L78 Accepts]: Start accepts. Automaton has 2191 states and 5613 transitions. Word has length 119 [2021-08-21 11:57:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:46,719 INFO L470 AbstractCegarLoop]: Abstraction has 2191 states and 5613 transitions. [2021-08-21 11:57:46,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2191 states and 5613 transitions. [2021-08-21 11:57:46,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:46,721 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:46,721 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:46,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2021-08-21 11:57:46,721 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:46,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:46,722 INFO L82 PathProgramCache]: Analyzing trace with hash -888188217, now seen corresponding path program 209 times [2021-08-21 11:57:46,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:46,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472178603] [2021-08-21 11:57:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:46,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:47,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:47,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:47,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472178603] [2021-08-21 11:57:47,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472178603] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:47,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:47,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-08-21 11:57:47,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129683123] [2021-08-21 11:57:47,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-21 11:57:47,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:47,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-21 11:57:47,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-08-21 11:57:47,012 INFO L87 Difference]: Start difference. First operand 2191 states and 5613 transitions. Second operand has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:47,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:47,457 INFO L93 Difference]: Finished difference Result 1585 states and 3862 transitions. [2021-08-21 11:57:47,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-21 11:57:47,457 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:47,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:47,459 INFO L225 Difference]: With dead ends: 1585 [2021-08-21 11:57:47,459 INFO L226 Difference]: Without dead ends: 1473 [2021-08-21 11:57:47,459 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 361.9ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:57:47,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-08-21 11:57:47,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1449. [2021-08-21 11:57:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 1448 states have (on average 2.4406077348066297) internal successors, (3534), 1448 states have internal predecessors, (3534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 3534 transitions. [2021-08-21 11:57:47,471 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 3534 transitions. Word has length 119 [2021-08-21 11:57:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:47,471 INFO L470 AbstractCegarLoop]: Abstraction has 1449 states and 3534 transitions. [2021-08-21 11:57:47,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.933333333333334) internal successors, (119), 15 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 3534 transitions. [2021-08-21 11:57:47,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:47,473 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:47,473 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:47,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2021-08-21 11:57:47,473 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:47,473 INFO L82 PathProgramCache]: Analyzing trace with hash 752105157, now seen corresponding path program 210 times [2021-08-21 11:57:47,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:47,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002445781] [2021-08-21 11:57:47,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:47,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:48,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:48,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002445781] [2021-08-21 11:57:48,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002445781] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:48,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:48,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:48,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111998175] [2021-08-21 11:57:48,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:48,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:48,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:48,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:48,257 INFO L87 Difference]: Start difference. First operand 1449 states and 3534 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:50,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:50,543 INFO L93 Difference]: Finished difference Result 1608 states and 3845 transitions. [2021-08-21 11:57:50,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:57:50,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:50,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:50,546 INFO L225 Difference]: With dead ends: 1608 [2021-08-21 11:57:50,546 INFO L226 Difference]: Without dead ends: 1505 [2021-08-21 11:57:50,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2041.7ms TimeCoverageRelationStatistics Valid=448, Invalid=2204, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:57:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2021-08-21 11:57:50,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1483. [2021-08-21 11:57:50,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 2.4365721997300946) internal successors, (3611), 1482 states have internal predecessors, (3611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:50,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 3611 transitions. [2021-08-21 11:57:50,559 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 3611 transitions. Word has length 119 [2021-08-21 11:57:50,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:50,559 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 3611 transitions. [2021-08-21 11:57:50,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:50,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 3611 transitions. [2021-08-21 11:57:50,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:50,561 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:50,561 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:50,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2021-08-21 11:57:50,561 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:50,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:50,561 INFO L82 PathProgramCache]: Analyzing trace with hash 322625971, now seen corresponding path program 211 times [2021-08-21 11:57:50,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:50,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515354766] [2021-08-21 11:57:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:50,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:51,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:51,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:51,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515354766] [2021-08-21 11:57:51,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515354766] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:51,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:51,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:51,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735517240] [2021-08-21 11:57:51,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:51,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:51,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:51,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:51,384 INFO L87 Difference]: Start difference. First operand 1483 states and 3611 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:53,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:53,699 INFO L93 Difference]: Finished difference Result 1644 states and 3921 transitions. [2021-08-21 11:57:53,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:57:53,699 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:53,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:53,701 INFO L225 Difference]: With dead ends: 1644 [2021-08-21 11:57:53,701 INFO L226 Difference]: Without dead ends: 1539 [2021-08-21 11:57:53,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2079.5ms TimeCoverageRelationStatistics Valid=453, Invalid=2303, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:57:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-08-21 11:57:53,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1485. [2021-08-21 11:57:53,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 2.4353099730458223) internal successors, (3614), 1484 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 3614 transitions. [2021-08-21 11:57:53,714 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 3614 transitions. Word has length 119 [2021-08-21 11:57:53,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:53,714 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 3614 transitions. [2021-08-21 11:57:53,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 3614 transitions. [2021-08-21 11:57:53,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:53,715 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:53,715 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:53,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2021-08-21 11:57:53,716 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:53,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:53,716 INFO L82 PathProgramCache]: Analyzing trace with hash -91142425, now seen corresponding path program 212 times [2021-08-21 11:57:53,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:53,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952546735] [2021-08-21 11:57:53,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:53,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:54,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:54,425 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952546735] [2021-08-21 11:57:54,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952546735] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:54,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:54,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:54,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142633338] [2021-08-21 11:57:54,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:54,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:54,427 INFO L87 Difference]: Start difference. First operand 1485 states and 3614 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:56,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:56,240 INFO L93 Difference]: Finished difference Result 1600 states and 3825 transitions. [2021-08-21 11:57:56,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:57:56,240 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:56,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:56,242 INFO L225 Difference]: With dead ends: 1600 [2021-08-21 11:57:56,242 INFO L226 Difference]: Without dead ends: 1495 [2021-08-21 11:57:56,243 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 1595.0ms TimeCoverageRelationStatistics Valid=449, Invalid=2203, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:57:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2021-08-21 11:57:56,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1477. [2021-08-21 11:57:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 1476 states have (on average 2.434959349593496) internal successors, (3594), 1476 states have internal predecessors, (3594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 3594 transitions. [2021-08-21 11:57:56,255 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 3594 transitions. Word has length 119 [2021-08-21 11:57:56,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:56,255 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 3594 transitions. [2021-08-21 11:57:56,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 3594 transitions. [2021-08-21 11:57:56,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:56,257 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:56,257 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:56,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2021-08-21 11:57:56,257 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:56,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:56,258 INFO L82 PathProgramCache]: Analyzing trace with hash -342437369, now seen corresponding path program 213 times [2021-08-21 11:57:56,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:56,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873793042] [2021-08-21 11:57:56,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:56,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:56,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:56,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:56,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873793042] [2021-08-21 11:57:56,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873793042] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:56,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:56,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:56,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650431267] [2021-08-21 11:57:56,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:56,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:56,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:56,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:56,903 INFO L87 Difference]: Start difference. First operand 1477 states and 3594 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:57:58,755 INFO L93 Difference]: Finished difference Result 1680 states and 4003 transitions. [2021-08-21 11:57:58,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:57:58,755 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:57:58,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:57:58,757 INFO L225 Difference]: With dead ends: 1680 [2021-08-21 11:57:58,757 INFO L226 Difference]: Without dead ends: 1545 [2021-08-21 11:57:58,757 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1618.5ms TimeCoverageRelationStatistics Valid=465, Invalid=2397, Unknown=0, NotChecked=0, Total=2862 [2021-08-21 11:57:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1545 states. [2021-08-21 11:57:58,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1545 to 1483. [2021-08-21 11:57:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 2.431174089068826) internal successors, (3603), 1482 states have internal predecessors, (3603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 3603 transitions. [2021-08-21 11:57:58,770 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 3603 transitions. Word has length 119 [2021-08-21 11:57:58,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:57:58,771 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 3603 transitions. [2021-08-21 11:57:58,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:57:58,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 3603 transitions. [2021-08-21 11:57:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:57:58,772 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:57:58,772 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:57:58,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2021-08-21 11:57:58,772 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:57:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:57:58,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1663819825, now seen corresponding path program 214 times [2021-08-21 11:57:58,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:57:58,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326353043] [2021-08-21 11:57:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:57:58,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:57:58,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:57:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:57:59,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:57:59,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326353043] [2021-08-21 11:57:59,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326353043] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:57:59,659 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:57:59,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:57:59,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713271858] [2021-08-21 11:57:59,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:57:59,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:57:59,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:57:59,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:57:59,660 INFO L87 Difference]: Start difference. First operand 1483 states and 3603 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:02,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:02,368 INFO L93 Difference]: Finished difference Result 1640 states and 3905 transitions. [2021-08-21 11:58:02,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-21 11:58:02,368 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:02,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:02,370 INFO L225 Difference]: With dead ends: 1640 [2021-08-21 11:58:02,370 INFO L226 Difference]: Without dead ends: 1535 [2021-08-21 11:58:02,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 2379.6ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-08-21 11:58:02,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2021-08-21 11:58:02,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1485. [2021-08-21 11:58:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 2.429919137466307) internal successors, (3606), 1484 states have internal predecessors, (3606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:02,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 3606 transitions. [2021-08-21 11:58:02,383 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 3606 transitions. Word has length 119 [2021-08-21 11:58:02,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:02,383 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 3606 transitions. [2021-08-21 11:58:02,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:02,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 3606 transitions. [2021-08-21 11:58:02,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:02,385 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:02,385 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:02,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2021-08-21 11:58:02,385 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:02,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:02,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1250051429, now seen corresponding path program 215 times [2021-08-21 11:58:02,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:02,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102820358] [2021-08-21 11:58:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:02,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:03,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:03,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102820358] [2021-08-21 11:58:03,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102820358] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:03,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:03,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:58:03,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091697529] [2021-08-21 11:58:03,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:58:03,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:03,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:58:03,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:58:03,176 INFO L87 Difference]: Start difference. First operand 1485 states and 3606 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:05,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:05,530 INFO L93 Difference]: Finished difference Result 1596 states and 3809 transitions. [2021-08-21 11:58:05,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-21 11:58:05,530 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:05,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:05,533 INFO L225 Difference]: With dead ends: 1596 [2021-08-21 11:58:05,533 INFO L226 Difference]: Without dead ends: 1473 [2021-08-21 11:58:05,533 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 2126.3ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-08-21 11:58:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-08-21 11:58:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1459. [2021-08-21 11:58:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1458 states have (on average 2.42798353909465) internal successors, (3540), 1458 states have internal predecessors, (3540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:05,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 3540 transitions. [2021-08-21 11:58:05,547 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 3540 transitions. Word has length 119 [2021-08-21 11:58:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:05,547 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 3540 transitions. [2021-08-21 11:58:05,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 3540 transitions. [2021-08-21 11:58:05,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:05,549 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:05,549 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:05,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2021-08-21 11:58:05,549 INFO L402 AbstractCegarLoop]: === Iteration 254 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:05,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:05,550 INFO L82 PathProgramCache]: Analyzing trace with hash 842816171, now seen corresponding path program 216 times [2021-08-21 11:58:05,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:05,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501626956] [2021-08-21 11:58:05,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:05,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:06,485 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:06,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501626956] [2021-08-21 11:58:06,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501626956] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:06,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:06,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:06,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681572023] [2021-08-21 11:58:06,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:06,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:06,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:06,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:06,486 INFO L87 Difference]: Start difference. First operand 1459 states and 3540 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:08,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:08,488 INFO L93 Difference]: Finished difference Result 1638 states and 3897 transitions. [2021-08-21 11:58:08,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:58:08,489 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:08,490 INFO L225 Difference]: With dead ends: 1638 [2021-08-21 11:58:08,490 INFO L226 Difference]: Without dead ends: 1503 [2021-08-21 11:58:08,491 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 1869.4ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:58:08,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1503 states. [2021-08-21 11:58:08,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1503 to 1459. [2021-08-21 11:58:08,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1458 states have (on average 2.4176954732510287) internal successors, (3525), 1458 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:08,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 3525 transitions. [2021-08-21 11:58:08,503 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 3525 transitions. Word has length 119 [2021-08-21 11:58:08,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:08,503 INFO L470 AbstractCegarLoop]: Abstraction has 1459 states and 3525 transitions. [2021-08-21 11:58:08,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:08,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 3525 transitions. [2021-08-21 11:58:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:08,504 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:08,504 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:08,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable253 [2021-08-21 11:58:08,505 INFO L402 AbstractCegarLoop]: === Iteration 255 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:08,505 INFO L82 PathProgramCache]: Analyzing trace with hash -801117817, now seen corresponding path program 217 times [2021-08-21 11:58:08,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:08,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581558152] [2021-08-21 11:58:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:08,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:09,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:09,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581558152] [2021-08-21 11:58:09,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581558152] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:09,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:09,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:09,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379768398] [2021-08-21 11:58:09,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:09,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:09,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:09,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:09,211 INFO L87 Difference]: Start difference. First operand 1459 states and 3525 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:11,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:11,276 INFO L93 Difference]: Finished difference Result 1906 states and 4580 transitions. [2021-08-21 11:58:11,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:58:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:11,280 INFO L225 Difference]: With dead ends: 1906 [2021-08-21 11:58:11,280 INFO L226 Difference]: Without dead ends: 1801 [2021-08-21 11:58:11,280 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 1766.9ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:58:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-08-21 11:58:11,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1519. [2021-08-21 11:58:11,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 2.429512516469038) internal successors, (3688), 1518 states have internal predecessors, (3688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:11,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 3688 transitions. [2021-08-21 11:58:11,298 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 3688 transitions. Word has length 119 [2021-08-21 11:58:11,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:11,298 INFO L470 AbstractCegarLoop]: Abstraction has 1519 states and 3688 transitions. [2021-08-21 11:58:11,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:11,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 3688 transitions. [2021-08-21 11:58:11,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:11,300 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:11,300 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:11,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable254 [2021-08-21 11:58:11,300 INFO L402 AbstractCegarLoop]: === Iteration 256 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:11,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:11,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1511744437, now seen corresponding path program 218 times [2021-08-21 11:58:11,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:11,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282464981] [2021-08-21 11:58:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:11,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:12,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:12,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:12,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282464981] [2021-08-21 11:58:12,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282464981] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:12,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:12,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:12,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952990190] [2021-08-21 11:58:12,237 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:12,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:12,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:12,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:12,241 INFO L87 Difference]: Start difference. First operand 1519 states and 3688 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:14,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:14,808 INFO L93 Difference]: Finished difference Result 1868 states and 4494 transitions. [2021-08-21 11:58:14,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:58:14,809 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:14,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:14,813 INFO L225 Difference]: With dead ends: 1868 [2021-08-21 11:58:14,813 INFO L226 Difference]: Without dead ends: 1773 [2021-08-21 11:58:14,813 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 2297.0ms TimeCoverageRelationStatistics Valid=513, Invalid=2679, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:58:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2021-08-21 11:58:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1687. [2021-08-21 11:58:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1686 states have (on average 2.435349940688019) internal successors, (4106), 1686 states have internal predecessors, (4106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:14,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 4106 transitions. [2021-08-21 11:58:14,829 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 4106 transitions. Word has length 119 [2021-08-21 11:58:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:14,829 INFO L470 AbstractCegarLoop]: Abstraction has 1687 states and 4106 transitions. [2021-08-21 11:58:14,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 4106 transitions. [2021-08-21 11:58:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:14,831 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:14,831 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:14,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable255 [2021-08-21 11:58:14,831 INFO L402 AbstractCegarLoop]: === Iteration 257 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:14,831 INFO L82 PathProgramCache]: Analyzing trace with hash 998859979, now seen corresponding path program 219 times [2021-08-21 11:58:14,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:14,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725106056] [2021-08-21 11:58:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:14,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:15,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:15,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:15,751 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725106056] [2021-08-21 11:58:15,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725106056] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:15,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:15,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:58:15,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164543459] [2021-08-21 11:58:15,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:58:15,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:15,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:58:15,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:58:15,753 INFO L87 Difference]: Start difference. First operand 1687 states and 4106 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:17,738 INFO L93 Difference]: Finished difference Result 2091 states and 4997 transitions. [2021-08-21 11:58:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-21 11:58:17,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:17,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:17,740 INFO L225 Difference]: With dead ends: 2091 [2021-08-21 11:58:17,740 INFO L226 Difference]: Without dead ends: 1356 [2021-08-21 11:58:17,741 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 1904.9ms TimeCoverageRelationStatistics Valid=528, Invalid=2778, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:58:17,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1356 states. [2021-08-21 11:58:17,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1356 to 1279. [2021-08-21 11:58:17,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1278 states have (on average 2.347417840375587) internal successors, (3000), 1278 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 3000 transitions. [2021-08-21 11:58:17,752 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 3000 transitions. Word has length 119 [2021-08-21 11:58:17,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:17,752 INFO L470 AbstractCegarLoop]: Abstraction has 1279 states and 3000 transitions. [2021-08-21 11:58:17,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:17,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 3000 transitions. [2021-08-21 11:58:17,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:17,753 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:17,753 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:17,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable256 [2021-08-21 11:58:17,754 INFO L402 AbstractCegarLoop]: === Iteration 258 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:17,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1440162481, now seen corresponding path program 220 times [2021-08-21 11:58:17,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:17,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051047665] [2021-08-21 11:58:17,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:17,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:18,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:18,424 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051047665] [2021-08-21 11:58:18,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051047665] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:18,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:18,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:18,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47036600] [2021-08-21 11:58:18,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:18,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:18,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:18,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:18,424 INFO L87 Difference]: Start difference. First operand 1279 states and 3000 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:20,450 INFO L93 Difference]: Finished difference Result 1472 states and 3388 transitions. [2021-08-21 11:58:20,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:58:20,450 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:20,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:20,452 INFO L225 Difference]: With dead ends: 1472 [2021-08-21 11:58:20,453 INFO L226 Difference]: Without dead ends: 1337 [2021-08-21 11:58:20,453 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 586 ImplicationChecksByTransitivity, 1718.4ms TimeCoverageRelationStatistics Valid=534, Invalid=2772, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:58:20,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2021-08-21 11:58:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1285. [2021-08-21 11:58:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1284 states have (on average 2.3434579439252334) internal successors, (3009), 1284 states have internal predecessors, (3009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:20,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 3009 transitions. [2021-08-21 11:58:20,467 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 3009 transitions. Word has length 119 [2021-08-21 11:58:20,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:20,467 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 3009 transitions. [2021-08-21 11:58:20,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:20,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 3009 transitions. [2021-08-21 11:58:20,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:20,469 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:20,469 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:20,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable257 [2021-08-21 11:58:20,469 INFO L402 AbstractCegarLoop]: === Iteration 259 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:20,470 INFO L82 PathProgramCache]: Analyzing trace with hash -790373945, now seen corresponding path program 221 times [2021-08-21 11:58:20,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:20,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148583543] [2021-08-21 11:58:20,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:20,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:21,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:21,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:21,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148583543] [2021-08-21 11:58:21,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148583543] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:21,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:21,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:21,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850244452] [2021-08-21 11:58:21,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:21,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:21,224 INFO L87 Difference]: Start difference. First operand 1285 states and 3009 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:23,123 INFO L93 Difference]: Finished difference Result 1436 states and 3298 transitions. [2021-08-21 11:58:23,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-21 11:58:23,123 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:23,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:23,125 INFO L225 Difference]: With dead ends: 1436 [2021-08-21 11:58:23,125 INFO L226 Difference]: Without dead ends: 1331 [2021-08-21 11:58:23,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 1726.2ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-08-21 11:58:23,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2021-08-21 11:58:23,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1287. [2021-08-21 11:58:23,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 1286 states have (on average 2.3421461897356144) internal successors, (3012), 1286 states have internal predecessors, (3012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:23,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 3012 transitions. [2021-08-21 11:58:23,136 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 3012 transitions. Word has length 119 [2021-08-21 11:58:23,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:23,136 INFO L470 AbstractCegarLoop]: Abstraction has 1287 states and 3012 transitions. [2021-08-21 11:58:23,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:23,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 3012 transitions. [2021-08-21 11:58:23,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:23,138 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:23,138 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:23,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable258 [2021-08-21 11:58:23,138 INFO L402 AbstractCegarLoop]: === Iteration 260 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:23,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:23,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2037338757, now seen corresponding path program 222 times [2021-08-21 11:58:23,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:23,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330824424] [2021-08-21 11:58:23,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:23,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:23,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:23,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:23,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330824424] [2021-08-21 11:58:23,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330824424] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:23,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:23,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:23,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448548811] [2021-08-21 11:58:23,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:23,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:23,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:23,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:23,876 INFO L87 Difference]: Start difference. First operand 1287 states and 3012 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:26,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:26,259 INFO L93 Difference]: Finished difference Result 1392 states and 3202 transitions. [2021-08-21 11:58:26,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-21 11:58:26,260 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:26,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:26,261 INFO L225 Difference]: With dead ends: 1392 [2021-08-21 11:58:26,261 INFO L226 Difference]: Without dead ends: 1287 [2021-08-21 11:58:26,261 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 525 ImplicationChecksByTransitivity, 2041.1ms TimeCoverageRelationStatistics Valid=517, Invalid=2563, Unknown=0, NotChecked=0, Total=3080 [2021-08-21 11:58:26,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-08-21 11:58:26,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1279. [2021-08-21 11:58:26,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1278 states have (on average 2.3450704225352115) internal successors, (2997), 1278 states have internal predecessors, (2997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2997 transitions. [2021-08-21 11:58:26,272 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2997 transitions. Word has length 119 [2021-08-21 11:58:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:26,272 INFO L470 AbstractCegarLoop]: Abstraction has 1279 states and 2997 transitions. [2021-08-21 11:58:26,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2997 transitions. [2021-08-21 11:58:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:26,273 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:26,274 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:26,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable259 [2021-08-21 11:58:26,274 INFO L402 AbstractCegarLoop]: === Iteration 261 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:26,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1228270287, now seen corresponding path program 223 times [2021-08-21 11:58:26,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:26,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174192071] [2021-08-21 11:58:26,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:26,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:27,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:27,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:27,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174192071] [2021-08-21 11:58:27,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174192071] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:27,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:27,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:27,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161432773] [2021-08-21 11:58:27,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:27,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:27,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:27,256 INFO L87 Difference]: Start difference. First operand 1279 states and 2997 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:29,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:29,736 INFO L93 Difference]: Finished difference Result 1470 states and 3372 transitions. [2021-08-21 11:58:29,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:58:29,737 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:29,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:29,738 INFO L225 Difference]: With dead ends: 1470 [2021-08-21 11:58:29,738 INFO L226 Difference]: Without dead ends: 1365 [2021-08-21 11:58:29,739 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 2258.5ms TimeCoverageRelationStatistics Valid=534, Invalid=2772, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:58:29,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2021-08-21 11:58:29,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1279. [2021-08-21 11:58:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1278 states have (on average 2.3411580594679187) internal successors, (2992), 1278 states have internal predecessors, (2992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:29,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 2992 transitions. [2021-08-21 11:58:29,750 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 2992 transitions. Word has length 119 [2021-08-21 11:58:29,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:29,750 INFO L470 AbstractCegarLoop]: Abstraction has 1279 states and 2992 transitions. [2021-08-21 11:58:29,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:29,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 2992 transitions. [2021-08-21 11:58:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:29,751 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:29,751 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:29,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable260 [2021-08-21 11:58:29,751 INFO L402 AbstractCegarLoop]: === Iteration 262 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:29,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:29,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1938896907, now seen corresponding path program 224 times [2021-08-21 11:58:29,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:29,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749439929] [2021-08-21 11:58:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:29,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:30,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:30,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749439929] [2021-08-21 11:58:30,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749439929] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:30,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:30,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:30,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307435834] [2021-08-21 11:58:30,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:30,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:30,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:30,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:30,646 INFO L87 Difference]: Start difference. First operand 1279 states and 2992 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:32,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:32,624 INFO L93 Difference]: Finished difference Result 1670 states and 3885 transitions. [2021-08-21 11:58:32,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:58:32,624 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:32,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:32,626 INFO L225 Difference]: With dead ends: 1670 [2021-08-21 11:58:32,626 INFO L226 Difference]: Without dead ends: 1575 [2021-08-21 11:58:32,627 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 1870.7ms TimeCoverageRelationStatistics Valid=534, Invalid=2772, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:58:32,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1575 states. [2021-08-21 11:58:32,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1575 to 1447. [2021-08-21 11:58:32,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 1446 states have (on average 2.3582295988934994) internal successors, (3410), 1446 states have internal predecessors, (3410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 3410 transitions. [2021-08-21 11:58:32,639 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 3410 transitions. Word has length 119 [2021-08-21 11:58:32,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:32,639 INFO L470 AbstractCegarLoop]: Abstraction has 1447 states and 3410 transitions. [2021-08-21 11:58:32,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:32,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 3410 transitions. [2021-08-21 11:58:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:32,641 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:32,641 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:32,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable261 [2021-08-21 11:58:32,641 INFO L402 AbstractCegarLoop]: === Iteration 263 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:32,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:32,641 INFO L82 PathProgramCache]: Analyzing trace with hash 571707509, now seen corresponding path program 225 times [2021-08-21 11:58:32,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:32,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913904227] [2021-08-21 11:58:32,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:32,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:33,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:33,308 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913904227] [2021-08-21 11:58:33,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913904227] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:33,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:33,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-08-21 11:58:33,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192856073] [2021-08-21 11:58:33,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-21 11:58:33,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-21 11:58:33,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-08-21 11:58:33,309 INFO L87 Difference]: Start difference. First operand 1447 states and 3410 transitions. Second operand has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:35,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:35,340 INFO L93 Difference]: Finished difference Result 1893 states and 4388 transitions. [2021-08-21 11:58:35,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-21 11:58:35,341 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:35,343 INFO L225 Difference]: With dead ends: 1893 [2021-08-21 11:58:35,343 INFO L226 Difference]: Without dead ends: 1338 [2021-08-21 11:58:35,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 1771.0ms TimeCoverageRelationStatistics Valid=552, Invalid=2870, Unknown=0, NotChecked=0, Total=3422 [2021-08-21 11:58:35,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2021-08-21 11:58:35,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1219. [2021-08-21 11:58:35,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 1218 states have (on average 2.312807881773399) internal successors, (2817), 1218 states have internal predecessors, (2817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 2817 transitions. [2021-08-21 11:58:35,355 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 2817 transitions. Word has length 119 [2021-08-21 11:58:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:35,355 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 2817 transitions. [2021-08-21 11:58:35,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.25) internal successors, (119), 28 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 2817 transitions. [2021-08-21 11:58:35,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:35,356 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:35,356 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:35,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable262 [2021-08-21 11:58:35,356 INFO L402 AbstractCegarLoop]: === Iteration 264 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:35,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1146303595, now seen corresponding path program 226 times [2021-08-21 11:58:35,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:35,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986990634] [2021-08-21 11:58:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:35,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 11:58:36,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 11:58:36,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 11:58:36,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986990634] [2021-08-21 11:58:36,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986990634] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 11:58:36,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 11:58:36,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-08-21 11:58:36,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872713598] [2021-08-21 11:58:36,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-21 11:58:36,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 11:58:36,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-21 11:58:36,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=789, Unknown=0, NotChecked=0, Total=870 [2021-08-21 11:58:36,064 INFO L87 Difference]: Start difference. First operand 1219 states and 2817 transitions. Second operand has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:38,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 11:58:38,094 INFO L93 Difference]: Finished difference Result 1372 states and 3109 transitions. [2021-08-21 11:58:38,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-21 11:58:38,094 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2021-08-21 11:58:38,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 11:58:38,096 INFO L225 Difference]: With dead ends: 1372 [2021-08-21 11:58:38,096 INFO L226 Difference]: Without dead ends: 1267 [2021-08-21 11:58:38,096 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 584 ImplicationChecksByTransitivity, 1759.9ms TimeCoverageRelationStatistics Valid=543, Invalid=2763, Unknown=0, NotChecked=0, Total=3306 [2021-08-21 11:58:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2021-08-21 11:58:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1221. [2021-08-21 11:58:38,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 1220 states have (on average 2.3114754098360657) internal successors, (2820), 1220 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 2820 transitions. [2021-08-21 11:58:38,106 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 2820 transitions. Word has length 119 [2021-08-21 11:58:38,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 11:58:38,106 INFO L470 AbstractCegarLoop]: Abstraction has 1221 states and 2820 transitions. [2021-08-21 11:58:38,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.966666666666667) internal successors, (119), 30 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 11:58:38,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 2820 transitions. [2021-08-21 11:58:38,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-08-21 11:58:38,108 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 11:58:38,108 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 11:58:38,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable263 [2021-08-21 11:58:38,108 INFO L402 AbstractCegarLoop]: === Iteration 265 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2021-08-21 11:58:38,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 11:58:38,108 INFO L82 PathProgramCache]: Analyzing trace with hash -320950999, now seen corresponding path program 227 times [2021-08-21 11:58:38,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 11:58:38,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122651620] [2021-08-21 11:58:38,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 11:58:38,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 11:58:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-08-21 11:58:38,245 WARN L223 SmtUtils]: Removed 7 from assertion stack [2021-08-21 11:58:38,247 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable264 [2021-08-21 11:58:38,248 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 11:58:38,249 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 11:58:38,252 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 11:58:38,252 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 11:58:38,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 11:58:38 BasicIcfg [2021-08-21 11:58:38,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 11:58:38,255 INFO L168 Benchmark]: Toolchain (without parser) took 835500.22 ms. Allocated memory was 170.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 151.0 MB in the beginning and 622.6 MB in the end (delta: -471.5 MB). Peak memory consumption was 655.7 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,256 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 127.9 MB. Free memory was 108.7 MB in the beginning and 108.7 MB in the end (delta: 76.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 11:58:38,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.80 ms. Allocated memory is still 170.9 MB. Free memory was 151.0 MB in the beginning and 148.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,257 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.88 ms. Allocated memory is still 170.9 MB. Free memory was 148.0 MB in the beginning and 144.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,258 INFO L168 Benchmark]: Boogie Preprocessor took 47.98 ms. Allocated memory is still 170.9 MB. Free memory was 144.9 MB in the beginning and 142.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,260 INFO L168 Benchmark]: RCFGBuilder took 649.67 ms. Allocated memory is still 170.9 MB. Free memory was 142.3 MB in the beginning and 144.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,260 INFO L168 Benchmark]: TraceAbstraction took 833962.06 ms. Allocated memory was 170.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 144.0 MB in the beginning and 622.6 MB in the end (delta: -478.6 MB). Peak memory consumption was 648.6 MB. Max. memory is 8.0 GB. [2021-08-21 11:58:38,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 127.9 MB. Free memory was 108.7 MB in the beginning and 108.7 MB in the end (delta: 76.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 769.80 ms. Allocated memory is still 170.9 MB. Free memory was 151.0 MB in the beginning and 148.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 66.88 ms. Allocated memory is still 170.9 MB. Free memory was 148.0 MB in the beginning and 144.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 47.98 ms. Allocated memory is still 170.9 MB. Free memory was 144.9 MB in the beginning and 142.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 649.67 ms. Allocated memory is still 170.9 MB. Free memory was 142.3 MB in the beginning and 144.5 MB in the end (delta: -2.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 833962.06 ms. Allocated memory was 170.9 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 144.0 MB in the beginning and 622.6 MB in the end (delta: -478.6 MB). Peak memory consumption was 648.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1727]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - TimeoutResultAtElement [Line: 1726]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was analyzing trace of length 120 with TraceHistMax 1,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 19 for 2ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 176 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 833834.8ms, OverallIterations: 265, TraceHistogramMax: 1, EmptinessCheckTime: 924.8ms, AutomataDifference: 610243.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 253.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 49040 SDtfs, 230675 SDslu, 575234 SDs, 0 SdLazy, 339701 SolverSat, 24203 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 155771.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14867 GetRequests, 1089 SyntacticMatches, 567 SemanticMatches, 13211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124221 ImplicationChecksByTransitivity, 516302.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8183occurred in iteration=4, InterpolantAutomatonStates: 8176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 9881.5ms AutomataMinimizationTime, 264 MinimizatonAttempts, 170840 StatesRemovedByMinimization, 258 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 481.1ms SsaConstructionTime, 3990.9ms SatisfiabilityAnalysisTime, 204695.6ms InterpolantComputationTime, 30907 NumberOfCodeBlocks, 30907 NumberOfCodeBlocksAsserted, 264 NumberOfCheckSat, 30643 ConstructedInterpolants, 0 QuantifiedInterpolants, 628124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 264 InterpolantComputations, 264 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown