/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-2_2b-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-231806ee773fbd0554de777ff4074f5592c67ff4-231806e [2021-10-13 22:30:24,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 22:30:24,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 22:30:24,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-13 22:30:24,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 22:30:24,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 22:30:24,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 22:30:24,396 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 [2021-10-13 22:30:24,430 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 22:30:24,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 22:30:24,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 22:30:24,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 22:30:24,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 22:30:24,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 22:30:24,436 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 22:30:24,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 22:30:24,436 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 22:30:24,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 22:30:24,437 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 22:30:24,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:24,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 22:30:24,438 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 22:30:24,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 22:30:24,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 22:30:24,439 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-13 22:30:24,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 22:30:24,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-13 22:30:24,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 22:30:24,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 22:30:24,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 22:30:24,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 22:30:24,643 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 22:30:24,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2b-container_of.i [2021-10-13 22:30:24,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbe68158/ebc99adb756d41c28e97a30c1d18bb43/FLAG57f9d512e [2021-10-13 22:30:25,153 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 22:30:25,153 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2b-container_of.i [2021-10-13 22:30:25,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbe68158/ebc99adb756d41c28e97a30c1d18bb43/FLAG57f9d512e [2021-10-13 22:30:25,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbe68158/ebc99adb756d41c28e97a30c1d18bb43 [2021-10-13 22:30:25,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 22:30:25,190 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-10-13 22:30:25,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:25,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 22:30:25,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 22:30:25,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d8f18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:25, skipping insertion in model container [2021-10-13 22:30:25,196 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:30:25" (1/1) ... [2021-10-13 22:30:25,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 22:30:25,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 22:30:25,885 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-2_2b-container_of.i[76077,76090] [2021-10-13 22:30:25,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:25,922 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 22:30:25,956 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-2_2b-container_of.i[76077,76090] [2021-10-13 22:30:25,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 22:30:26,040 INFO L208 MainTranslator]: Completed translation [2021-10-13 22:30:26,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26 WrapperNode [2021-10-13 22:30:26,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 22:30:26,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:26,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 22:30:26,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 22:30:26,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 22:30:26,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 22:30:26,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 22:30:26,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 22:30:26,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 22:30:26,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 22:30:26,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 22:30:26,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 22:30:26,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (1/1) ... [2021-10-13 22:30:26,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 22:30:26,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-13 22:30:26,159 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) [2021-10-13 22:30:26,175 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 [2021-10-13 22:30:26,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 22:30:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-10-13 22:30:26,186 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 22:30:26,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 22:30:26,187 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 22:30:26,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 22:30:26,564 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2021-10-13 22:30:26,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:26 BoogieIcfgContainer [2021-10-13 22:30:26,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 22:30:26,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 22:30:26,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 22:30:26,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 22:30:26,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:30:25" (1/3) ... [2021-10-13 22:30:26,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26be31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:26, skipping insertion in model container [2021-10-13 22:30:26,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:30:26" (2/3) ... [2021-10-13 22:30:26,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26be31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:30:26, skipping insertion in model container [2021-10-13 22:30:26,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:30:26" (3/3) ... [2021-10-13 22:30:26,571 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2b-container_of.i [2021-10-13 22:30:26,575 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 22:30:26,575 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 22:30:26,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-10-13 22:30:26,575 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 22:30:26,596 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,597 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,600 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,601 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,602 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,603 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,604 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,605 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,606 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,607 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,608 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,609 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,610 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,611 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,612 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,615 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,618 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,619 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,620 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,620 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,622 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,623 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,626 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,626 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,627 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 22:30:26,632 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-13 22:30:26,672 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 22:30:26,682 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 [2021-10-13 22:30:26,682 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 22:30:26,695 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 143 places, 143 transitions, 302 flow [2021-10-13 22:30:26,834 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5983 states, 5975 states have (on average 2.813723849372385) internal successors, (16812), 5982 states have internal predecessors, (16812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:26,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 5983 states, 5975 states have (on average 2.813723849372385) internal successors, (16812), 5982 states have internal predecessors, (16812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-13 22:30:26,858 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:26,859 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:26,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash -286654059, now seen corresponding path program 1 times [2021-10-13 22:30:26,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:26,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193059861] [2021-10-13 22:30:26,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:26,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:27,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:27,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:27,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193059861] [2021-10-13 22:30:27,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193059861] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:27,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:27,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 22:30:27,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292463254] [2021-10-13 22:30:27,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 22:30:27,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:27,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 22:30:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 22:30:27,282 INFO L87 Difference]: Start difference. First operand has 5983 states, 5975 states have (on average 2.813723849372385) internal successors, (16812), 5982 states have internal predecessors, (16812), 0 states have call successors, (0), 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 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:27,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:27,715 INFO L93 Difference]: Finished difference Result 8215 states and 22689 transitions. [2021-10-13 22:30:27,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 22:30:27,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-10-13 22:30:27,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:27,760 INFO L225 Difference]: With dead ends: 8215 [2021-10-13 22:30:27,760 INFO L226 Difference]: Without dead ends: 6877 [2021-10-13 22:30:27,761 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 95.6ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-10-13 22:30:27,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6877 states. [2021-10-13 22:30:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6877 to 5252. [2021-10-13 22:30:27,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5252 states, 5247 states have (on average 2.7486182580522205) internal successors, (14422), 5251 states have internal predecessors, (14422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:27,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5252 states to 5252 states and 14422 transitions. [2021-10-13 22:30:27,959 INFO L78 Accepts]: Start accepts. Automaton has 5252 states and 14422 transitions. Word has length 48 [2021-10-13 22:30:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:27,960 INFO L470 AbstractCegarLoop]: Abstraction has 5252 states and 14422 transitions. [2021-10-13 22:30:27,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 5252 states and 14422 transitions. [2021-10-13 22:30:27,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-13 22:30:27,967 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:27,967 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:27,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 22:30:27,968 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:27,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:27,970 INFO L82 PathProgramCache]: Analyzing trace with hash 381197422, now seen corresponding path program 1 times [2021-10-13 22:30:27,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:27,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225209478] [2021-10-13 22:30:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:27,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:28,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:28,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:28,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225209478] [2021-10-13 22:30:28,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225209478] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:28,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:28,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-13 22:30:28,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638477105] [2021-10-13 22:30:28,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 22:30:28,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:28,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 22:30:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-13 22:30:28,136 INFO L87 Difference]: Start difference. First operand 5252 states and 14422 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,396 INFO L93 Difference]: Finished difference Result 7451 states and 20293 transitions. [2021-10-13 22:30:28,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-13 22:30:28,396 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-13 22:30:28,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,421 INFO L225 Difference]: With dead ends: 7451 [2021-10-13 22:30:28,421 INFO L226 Difference]: Without dead ends: 6274 [2021-10-13 22:30:28,422 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-13 22:30:28,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2021-10-13 22:30:28,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 6058. [2021-10-13 22:30:28,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6058 states, 6054 states have (on average 2.7530558308556325) internal successors, (16667), 6057 states have internal predecessors, (16667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6058 states to 6058 states and 16667 transitions. [2021-10-13 22:30:28,575 INFO L78 Accepts]: Start accepts. Automaton has 6058 states and 16667 transitions. Word has length 54 [2021-10-13 22:30:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,575 INFO L470 AbstractCegarLoop]: Abstraction has 6058 states and 16667 transitions. [2021-10-13 22:30:28,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 6058 states and 16667 transitions. [2021-10-13 22:30:28,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-10-13 22:30:28,585 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,585 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 22:30:28,586 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:28,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1150277085, now seen corresponding path program 1 times [2021-10-13 22:30:28,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036314656] [2021-10-13 22:30:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:28,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:28,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036314656] [2021-10-13 22:30:28,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036314656] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:28,680 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:28,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 22:30:28,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556183964] [2021-10-13 22:30:28,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 22:30:28,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:28,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 22:30:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 22:30:28,681 INFO L87 Difference]: Start difference. First operand 6058 states and 16667 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2021-10-13 22:30:28,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:28,734 INFO L93 Difference]: Finished difference Result 2206 states and 5879 transitions. [2021-10-13 22:30:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 22:30:28,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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 [2021-10-13 22:30:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:28,742 INFO L225 Difference]: With dead ends: 2206 [2021-10-13 22:30:28,743 INFO L226 Difference]: Without dead ends: 2206 [2021-10-13 22:30:28,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 18.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 22:30:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2021-10-13 22:30:28,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 2206. [2021-10-13 22:30:28,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2204 states have (on average 2.667422867513612) internal successors, (5879), 2205 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) [2021-10-13 22:30:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5879 transitions. [2021-10-13 22:30:28,781 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5879 transitions. Word has length 66 [2021-10-13 22:30:28,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:28,783 INFO L470 AbstractCegarLoop]: Abstraction has 2206 states and 5879 transitions. [2021-10-13 22:30:28,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 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) [2021-10-13 22:30:28,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5879 transitions. [2021-10-13 22:30:28,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:28,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:28,788 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:28,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 22:30:28,789 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:28,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:28,789 INFO L82 PathProgramCache]: Analyzing trace with hash -572287953, now seen corresponding path program 1 times [2021-10-13 22:30:28,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:28,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720119295] [2021-10-13 22:30:28,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:28,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:29,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:29,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:29,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720119295] [2021-10-13 22:30:29,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720119295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:29,425 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:29,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:30:29,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436718400] [2021-10-13 22:30:29,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:30:29,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:30:29,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:30:29,426 INFO L87 Difference]: Start difference. First operand 2206 states and 5879 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:30,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:30,370 INFO L93 Difference]: Finished difference Result 2936 states and 7448 transitions. [2021-10-13 22:30:30,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:30:30,371 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:30,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:30,388 INFO L225 Difference]: With dead ends: 2936 [2021-10-13 22:30:30,389 INFO L226 Difference]: Without dead ends: 2936 [2021-10-13 22:30:30,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 829.4ms TimeCoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 22:30:30,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2021-10-13 22:30:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2439. [2021-10-13 22:30:30,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2437 states have (on average 2.620024620434961) internal successors, (6385), 2438 states have internal predecessors, (6385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 6385 transitions. [2021-10-13 22:30:30,452 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 6385 transitions. Word has length 96 [2021-10-13 22:30:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:30,453 INFO L470 AbstractCegarLoop]: Abstraction has 2439 states and 6385 transitions. [2021-10-13 22:30:30,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:30,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 6385 transitions. [2021-10-13 22:30:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:30,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:30,460 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] [2021-10-13 22:30:30,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 22:30:30,460 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:30,461 INFO L82 PathProgramCache]: Analyzing trace with hash -2039220959, now seen corresponding path program 2 times [2021-10-13 22:30:30,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:30,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218371148] [2021-10-13 22:30:30,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:30,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:31,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:31,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218371148] [2021-10-13 22:30:31,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218371148] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:31,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:31,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:30:31,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294042209] [2021-10-13 22:30:31,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:30:31,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:31,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:30:31,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:30:31,249 INFO L87 Difference]: Start difference. First operand 2439 states and 6385 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:34,977 INFO L93 Difference]: Finished difference Result 6265 states and 15843 transitions. [2021-10-13 22:30:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:30:34,978 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:34,998 INFO L225 Difference]: With dead ends: 6265 [2021-10-13 22:30:34,999 INFO L226 Difference]: Without dead ends: 6265 [2021-10-13 22:30:34,999 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 3152.2ms TimeCoverageRelationStatistics Valid=877, Invalid=2429, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:30:35,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2021-10-13 22:30:35,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 3092. [2021-10-13 22:30:35,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3090 states have (on average 2.632686084142395) internal successors, (8135), 3091 states have internal predecessors, (8135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 8135 transitions. [2021-10-13 22:30:35,078 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 8135 transitions. Word has length 96 [2021-10-13 22:30:35,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:35,079 INFO L470 AbstractCegarLoop]: Abstraction has 3092 states and 8135 transitions. [2021-10-13 22:30:35,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:35,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 8135 transitions. [2021-10-13 22:30:35,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:35,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:35,088 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:35,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 22:30:35,089 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:35,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:35,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1584940955, now seen corresponding path program 3 times [2021-10-13 22:30:35,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:35,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641788198] [2021-10-13 22:30:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:35,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:35,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:35,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641788198] [2021-10-13 22:30:35,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641788198] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:35,578 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:35,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:30:35,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250426472] [2021-10-13 22:30:35,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:30:35,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:35,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:30:35,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:30:35,580 INFO L87 Difference]: Start difference. First operand 3092 states and 8135 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:36,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:36,573 INFO L93 Difference]: Finished difference Result 3758 states and 9654 transitions. [2021-10-13 22:30:36,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-13 22:30:36,574 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:36,580 INFO L225 Difference]: With dead ends: 3758 [2021-10-13 22:30:36,580 INFO L226 Difference]: Without dead ends: 3758 [2021-10-13 22:30:36,581 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 800.0ms TimeCoverageRelationStatistics Valid=304, Invalid=752, Unknown=0, NotChecked=0, Total=1056 [2021-10-13 22:30:36,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3758 states. [2021-10-13 22:30:36,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3758 to 3188. [2021-10-13 22:30:36,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 3186 states have (on average 2.636220966729441) internal successors, (8399), 3187 states have internal predecessors, (8399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 8399 transitions. [2021-10-13 22:30:36,632 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 8399 transitions. Word has length 96 [2021-10-13 22:30:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:36,633 INFO L470 AbstractCegarLoop]: Abstraction has 3188 states and 8399 transitions. [2021-10-13 22:30:36,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 8399 transitions. [2021-10-13 22:30:36,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:36,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:36,638 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:36,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 22:30:36,639 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:36,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:36,639 INFO L82 PathProgramCache]: Analyzing trace with hash 115691965, now seen corresponding path program 4 times [2021-10-13 22:30:36,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:36,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360597448] [2021-10-13 22:30:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:36,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:37,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:37,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:37,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360597448] [2021-10-13 22:30:37,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360597448] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:37,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:37,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:30:37,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770092920] [2021-10-13 22:30:37,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:30:37,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:37,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:30:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:30:37,068 INFO L87 Difference]: Start difference. First operand 3188 states and 8399 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:38,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:38,075 INFO L93 Difference]: Finished difference Result 4037 states and 10178 transitions. [2021-10-13 22:30:38,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:30:38,077 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:38,096 INFO L225 Difference]: With dead ends: 4037 [2021-10-13 22:30:38,097 INFO L226 Difference]: Without dead ends: 4037 [2021-10-13 22:30:38,097 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 751.4ms TimeCoverageRelationStatistics Valid=340, Invalid=850, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 22:30:38,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2021-10-13 22:30:38,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 3190. [2021-10-13 22:30:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 3188 states have (on average 2.6361355081555833) internal successors, (8404), 3189 states have internal predecessors, (8404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:38,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 8404 transitions. [2021-10-13 22:30:38,173 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 8404 transitions. Word has length 96 [2021-10-13 22:30:38,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:38,173 INFO L470 AbstractCegarLoop]: Abstraction has 3190 states and 8404 transitions. [2021-10-13 22:30:38,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:38,173 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 8404 transitions. [2021-10-13 22:30:38,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:38,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:38,179 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:38,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 22:30:38,179 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:38,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:38,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1921398873, now seen corresponding path program 5 times [2021-10-13 22:30:38,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:38,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279447843] [2021-10-13 22:30:38,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:38,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:38,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:38,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:38,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279447843] [2021-10-13 22:30:38,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279447843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:38,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:38,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:30:38,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855454336] [2021-10-13 22:30:38,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:30:38,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:38,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:30:38,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:30:38,587 INFO L87 Difference]: Start difference. First operand 3190 states and 8404 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:39,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:39,538 INFO L93 Difference]: Finished difference Result 3951 states and 9974 transitions. [2021-10-13 22:30:39,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:30:39,539 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:39,545 INFO L225 Difference]: With dead ends: 3951 [2021-10-13 22:30:39,546 INFO L226 Difference]: Without dead ends: 3951 [2021-10-13 22:30:39,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 823.4ms TimeCoverageRelationStatistics Valid=325, Invalid=865, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 22:30:39,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2021-10-13 22:30:39,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3192. [2021-10-13 22:30:39,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 3190 states have (on average 2.636050156739812) internal successors, (8409), 3191 states have internal predecessors, (8409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:39,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 8409 transitions. [2021-10-13 22:30:39,609 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 8409 transitions. Word has length 96 [2021-10-13 22:30:39,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:39,609 INFO L470 AbstractCegarLoop]: Abstraction has 3192 states and 8409 transitions. [2021-10-13 22:30:39,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:39,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 8409 transitions. [2021-10-13 22:30:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:39,615 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:39,615 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:39,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 22:30:39,615 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:39,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:39,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1300634913, now seen corresponding path program 6 times [2021-10-13 22:30:39,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:39,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880351011] [2021-10-13 22:30:39,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:39,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:39,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:39,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880351011] [2021-10-13 22:30:39,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880351011] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:39,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:39,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:30:39,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607304577] [2021-10-13 22:30:39,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:30:39,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:39,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:30:39,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:30:39,985 INFO L87 Difference]: Start difference. First operand 3192 states and 8409 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:40,917 INFO L93 Difference]: Finished difference Result 4032 states and 10163 transitions. [2021-10-13 22:30:40,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-13 22:30:40,917 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:40,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:40,923 INFO L225 Difference]: With dead ends: 4032 [2021-10-13 22:30:40,923 INFO L226 Difference]: Without dead ends: 4032 [2021-10-13 22:30:40,924 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 753.7ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 22:30:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2021-10-13 22:30:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 3188. [2021-10-13 22:30:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3188 states, 3186 states have (on average 2.636220966729441) internal successors, (8399), 3187 states have internal predecessors, (8399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:40,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3188 states to 3188 states and 8399 transitions. [2021-10-13 22:30:40,975 INFO L78 Accepts]: Start accepts. Automaton has 3188 states and 8399 transitions. Word has length 96 [2021-10-13 22:30:40,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:40,975 INFO L470 AbstractCegarLoop]: Abstraction has 3188 states and 8399 transitions. [2021-10-13 22:30:40,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:40,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3188 states and 8399 transitions. [2021-10-13 22:30:40,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:40,981 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:40,981 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:40,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 22:30:40,981 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:40,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:40,982 INFO L82 PathProgramCache]: Analyzing trace with hash 822014431, now seen corresponding path program 7 times [2021-10-13 22:30:40,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:40,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362169336] [2021-10-13 22:30:40,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:40,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:41,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:41,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362169336] [2021-10-13 22:30:41,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362169336] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:41,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:41,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:30:41,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391431978] [2021-10-13 22:30:41,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:30:41,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:41,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:30:41,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=524, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:30:41,630 INFO L87 Difference]: Start difference. First operand 3188 states and 8399 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:45,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:45,815 INFO L93 Difference]: Finished difference Result 6274 states and 15965 transitions. [2021-10-13 22:30:45,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-13 22:30:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:45,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:45,833 INFO L225 Difference]: With dead ends: 6274 [2021-10-13 22:30:45,834 INFO L226 Difference]: Without dead ends: 6274 [2021-10-13 22:30:45,835 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 3595.5ms TimeCoverageRelationStatistics Valid=977, Invalid=2445, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 22:30:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6274 states. [2021-10-13 22:30:45,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6274 to 3452. [2021-10-13 22:30:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3452 states, 3450 states have (on average 2.664057971014493) internal successors, (9191), 3451 states have internal predecessors, (9191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3452 states to 3452 states and 9191 transitions. [2021-10-13 22:30:45,894 INFO L78 Accepts]: Start accepts. Automaton has 3452 states and 9191 transitions. Word has length 96 [2021-10-13 22:30:45,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:45,895 INFO L470 AbstractCegarLoop]: Abstraction has 3452 states and 9191 transitions. [2021-10-13 22:30:45,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:45,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3452 states and 9191 transitions. [2021-10-13 22:30:45,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:45,901 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:45,901 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:45,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-13 22:30:45,901 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:45,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1138170515, now seen corresponding path program 8 times [2021-10-13 22:30:45,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:45,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026120381] [2021-10-13 22:30:45,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:45,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:46,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:46,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:46,571 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026120381] [2021-10-13 22:30:46,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026120381] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:46,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:46,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:30:46,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160118780] [2021-10-13 22:30:46,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:30:46,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:30:46,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:30:46,576 INFO L87 Difference]: Start difference. First operand 3452 states and 9191 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:51,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:51,152 INFO L93 Difference]: Finished difference Result 5901 states and 14980 transitions. [2021-10-13 22:30:51,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-13 22:30:51,152 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:51,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:51,161 INFO L225 Difference]: With dead ends: 5901 [2021-10-13 22:30:51,161 INFO L226 Difference]: Without dead ends: 5901 [2021-10-13 22:30:51,162 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 3898.5ms TimeCoverageRelationStatistics Valid=999, Invalid=2541, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 22:30:51,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2021-10-13 22:30:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 3428. [2021-10-13 22:30:51,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3428 states, 3426 states have (on average 2.6617046117921777) internal successors, (9119), 3427 states have internal predecessors, (9119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 9119 transitions. [2021-10-13 22:30:51,244 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 9119 transitions. Word has length 96 [2021-10-13 22:30:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:51,244 INFO L470 AbstractCegarLoop]: Abstraction has 3428 states and 9119 transitions. [2021-10-13 22:30:51,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 9119 transitions. [2021-10-13 22:30:51,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:51,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:51,249 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:51,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-13 22:30:51,250 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:51,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:51,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1929405393, now seen corresponding path program 9 times [2021-10-13 22:30:51,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:51,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013280228] [2021-10-13 22:30:51,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:51,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:51,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:51,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:51,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013280228] [2021-10-13 22:30:51,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013280228] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:51,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:51,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:30:51,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010190672] [2021-10-13 22:30:51,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:30:51,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:51,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:30:51,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:30:51,897 INFO L87 Difference]: Start difference. First operand 3428 states and 9119 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:30:56,356 INFO L93 Difference]: Finished difference Result 6733 states and 16996 transitions. [2021-10-13 22:30:56,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-10-13 22:30:56,357 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:30:56,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:30:56,364 INFO L225 Difference]: With dead ends: 6733 [2021-10-13 22:30:56,364 INFO L226 Difference]: Without dead ends: 6733 [2021-10-13 22:30:56,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 3765.3ms TimeCoverageRelationStatistics Valid=980, Invalid=2560, Unknown=0, NotChecked=0, Total=3540 [2021-10-13 22:30:56,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2021-10-13 22:30:56,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 3404. [2021-10-13 22:30:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 3402 states have (on average 2.659318048206937) internal successors, (9047), 3403 states have internal predecessors, (9047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 9047 transitions. [2021-10-13 22:30:56,437 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 9047 transitions. Word has length 96 [2021-10-13 22:30:56,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:30:56,437 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 9047 transitions. [2021-10-13 22:30:56,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:30:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 9047 transitions. [2021-10-13 22:30:56,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:30:56,447 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:30:56,447 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:30:56,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-13 22:30:56,448 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:30:56,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:30:56,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1586416181, now seen corresponding path program 10 times [2021-10-13 22:30:56,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:30:56,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345306006] [2021-10-13 22:30:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:30:56,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:30:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:30:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:30:57,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:30:57,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345306006] [2021-10-13 22:30:57,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345306006] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:30:57,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:30:57,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:30:57,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933023986] [2021-10-13 22:30:57,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:30:57,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:30:57,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:30:57,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:30:57,083 INFO L87 Difference]: Start difference. First operand 3404 states and 9047 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:01,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:01,161 INFO L93 Difference]: Finished difference Result 6771 states and 17073 transitions. [2021-10-13 22:31:01,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-13 22:31:01,162 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:01,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:01,169 INFO L225 Difference]: With dead ends: 6771 [2021-10-13 22:31:01,170 INFO L226 Difference]: Without dead ends: 6771 [2021-10-13 22:31:01,170 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 3459.6ms TimeCoverageRelationStatistics Valid=930, Invalid=2492, Unknown=0, NotChecked=0, Total=3422 [2021-10-13 22:31:01,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2021-10-13 22:31:01,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 3320. [2021-10-13 22:31:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 3318 states have (on average 2.6525015069318867) internal successors, (8801), 3319 states have internal predecessors, (8801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 8801 transitions. [2021-10-13 22:31:01,226 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 8801 transitions. Word has length 96 [2021-10-13 22:31:01,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:01,226 INFO L470 AbstractCegarLoop]: Abstraction has 3320 states and 8801 transitions. [2021-10-13 22:31:01,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:01,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 8801 transitions. [2021-10-13 22:31:01,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:01,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:01,231 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:01,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-13 22:31:01,231 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:01,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:01,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1469035231, now seen corresponding path program 11 times [2021-10-13 22:31:01,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:01,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179157198] [2021-10-13 22:31:01,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:01,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:01,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:01,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:01,595 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179157198] [2021-10-13 22:31:01,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179157198] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:01,595 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:01,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-10-13 22:31:01,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668381634] [2021-10-13 22:31:01,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-13 22:31:01,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-13 22:31:01,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-10-13 22:31:01,596 INFO L87 Difference]: Start difference. First operand 3320 states and 8801 transitions. Second operand has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:02,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:02,356 INFO L93 Difference]: Finished difference Result 3875 states and 9932 transitions. [2021-10-13 22:31:02,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-10-13 22:31:02,357 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:02,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:02,362 INFO L225 Difference]: With dead ends: 3875 [2021-10-13 22:31:02,362 INFO L226 Difference]: Without dead ends: 3875 [2021-10-13 22:31:02,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 630.2ms TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2021-10-13 22:31:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3875 states. [2021-10-13 22:31:02,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3875 to 3110. [2021-10-13 22:31:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 2.668597168597169) internal successors, (8294), 3109 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:02,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 8294 transitions. [2021-10-13 22:31:02,412 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 8294 transitions. Word has length 96 [2021-10-13 22:31:02,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:02,412 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 8294 transitions. [2021-10-13 22:31:02,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 19 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:02,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 8294 transitions. [2021-10-13 22:31:02,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:02,417 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:02,417 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:02,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-13 22:31:02,417 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:02,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:02,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1358999059, now seen corresponding path program 12 times [2021-10-13 22:31:02,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:02,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110562463] [2021-10-13 22:31:02,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:02,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:03,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:03,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110562463] [2021-10-13 22:31:03,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110562463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:03,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:03,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:03,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218506141] [2021-10-13 22:31:03,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:03,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:03,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:03,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:03,071 INFO L87 Difference]: Start difference. First operand 3110 states and 8294 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:06,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:06,477 INFO L93 Difference]: Finished difference Result 5951 states and 15244 transitions. [2021-10-13 22:31:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:31:06,478 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:06,484 INFO L225 Difference]: With dead ends: 5951 [2021-10-13 22:31:06,484 INFO L226 Difference]: Without dead ends: 5951 [2021-10-13 22:31:06,485 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2974.8ms TimeCoverageRelationStatistics Valid=831, Invalid=2361, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:31:06,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5951 states. [2021-10-13 22:31:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5951 to 3086. [2021-10-13 22:31:06,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3086 states, 3084 states have (on average 2.6663424124513617) internal successors, (8223), 3085 states have internal predecessors, (8223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:06,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3086 states to 3086 states and 8223 transitions. [2021-10-13 22:31:06,534 INFO L78 Accepts]: Start accepts. Automaton has 3086 states and 8223 transitions. Word has length 96 [2021-10-13 22:31:06,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:06,534 INFO L470 AbstractCegarLoop]: Abstraction has 3086 states and 8223 transitions. [2021-10-13 22:31:06,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:06,535 INFO L276 IsEmpty]: Start isEmpty. Operand 3086 states and 8223 transitions. [2021-10-13 22:31:06,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:06,539 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:06,539 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:06,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-13 22:31:06,539 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:06,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash -16862719, now seen corresponding path program 13 times [2021-10-13 22:31:06,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:06,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882189202] [2021-10-13 22:31:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:06,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:07,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:07,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882189202] [2021-10-13 22:31:07,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882189202] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:07,158 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:07,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:07,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452131650] [2021-10-13 22:31:07,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:07,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:07,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:07,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:07,162 INFO L87 Difference]: Start difference. First operand 3086 states and 8223 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:10,600 INFO L93 Difference]: Finished difference Result 8906 states and 22726 transitions. [2021-10-13 22:31:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:31:10,600 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:10,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:10,609 INFO L225 Difference]: With dead ends: 8906 [2021-10-13 22:31:10,609 INFO L226 Difference]: Without dead ends: 8906 [2021-10-13 22:31:10,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 2951.5ms TimeCoverageRelationStatistics Valid=827, Invalid=2253, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:31:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8906 states. [2021-10-13 22:31:10,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8906 to 3254. [2021-10-13 22:31:10,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3252 states have (on average 2.6817343173431736) internal successors, (8721), 3253 states have internal predecessors, (8721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:10,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8721 transitions. [2021-10-13 22:31:10,669 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8721 transitions. Word has length 96 [2021-10-13 22:31:10,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:10,669 INFO L470 AbstractCegarLoop]: Abstraction has 3254 states and 8721 transitions. [2021-10-13 22:31:10,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8721 transitions. [2021-10-13 22:31:10,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:10,673 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:10,674 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:10,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-13 22:31:10,674 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:10,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1450594625, now seen corresponding path program 14 times [2021-10-13 22:31:10,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:10,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061810455] [2021-10-13 22:31:10,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:10,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:11,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:11,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:11,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061810455] [2021-10-13 22:31:11,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061810455] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:11,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:11,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:11,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056254307] [2021-10-13 22:31:11,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:11,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:11,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:11,292 INFO L87 Difference]: Start difference. First operand 3254 states and 8721 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:15,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:15,178 INFO L93 Difference]: Finished difference Result 8351 states and 21556 transitions. [2021-10-13 22:31:15,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:31:15,179 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:15,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:15,189 INFO L225 Difference]: With dead ends: 8351 [2021-10-13 22:31:15,189 INFO L226 Difference]: Without dead ends: 8351 [2021-10-13 22:31:15,190 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 3352.2ms TimeCoverageRelationStatistics Valid=924, Invalid=2268, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:31:15,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8351 states. [2021-10-13 22:31:15,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8351 to 3182. [2021-10-13 22:31:15,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 3180 states have (on average 2.6745283018867925) internal successors, (8505), 3181 states have internal predecessors, (8505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 8505 transitions. [2021-10-13 22:31:15,254 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 8505 transitions. Word has length 96 [2021-10-13 22:31:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:15,254 INFO L470 AbstractCegarLoop]: Abstraction has 3182 states and 8505 transitions. [2021-10-13 22:31:15,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:15,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 8505 transitions. [2021-10-13 22:31:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:15,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:15,259 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] [2021-10-13 22:31:15,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-13 22:31:15,260 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:15,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:15,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1134438541, now seen corresponding path program 15 times [2021-10-13 22:31:15,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:15,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357486406] [2021-10-13 22:31:15,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:15,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:15,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:15,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:15,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357486406] [2021-10-13 22:31:15,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357486406] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:15,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:15,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:15,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190930480] [2021-10-13 22:31:15,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:15,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:15,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:15,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:15,923 INFO L87 Difference]: Start difference. First operand 3182 states and 8505 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:20,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:20,148 INFO L93 Difference]: Finished difference Result 7961 states and 20533 transitions. [2021-10-13 22:31:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:31:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:20,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:20,156 INFO L225 Difference]: With dead ends: 7961 [2021-10-13 22:31:20,156 INFO L226 Difference]: Without dead ends: 7961 [2021-10-13 22:31:20,157 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 3710.9ms TimeCoverageRelationStatistics Valid=945, Invalid=2361, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:31:20,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7961 states. [2021-10-13 22:31:20,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7961 to 3170. [2021-10-13 22:31:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 3168 states have (on average 2.6732954545454546) internal successors, (8469), 3169 states have internal predecessors, (8469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:20,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 8469 transitions. [2021-10-13 22:31:20,202 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 8469 transitions. Word has length 96 [2021-10-13 22:31:20,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:20,202 INFO L470 AbstractCegarLoop]: Abstraction has 3170 states and 8469 transitions. [2021-10-13 22:31:20,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 8469 transitions. [2021-10-13 22:31:20,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:20,207 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:20,207 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:20,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-13 22:31:20,207 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:20,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:20,207 INFO L82 PathProgramCache]: Analyzing trace with hash 92952847, now seen corresponding path program 16 times [2021-10-13 22:31:20,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:20,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785356265] [2021-10-13 22:31:20,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:20,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:20,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:20,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785356265] [2021-10-13 22:31:20,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785356265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:20,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:20,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:20,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705044799] [2021-10-13 22:31:20,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:20,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:20,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:20,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:20,803 INFO L87 Difference]: Start difference. First operand 3170 states and 8469 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:24,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:24,896 INFO L93 Difference]: Finished difference Result 8554 states and 21905 transitions. [2021-10-13 22:31:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:31:24,897 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:24,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:24,905 INFO L225 Difference]: With dead ends: 8554 [2021-10-13 22:31:24,905 INFO L226 Difference]: Without dead ends: 8554 [2021-10-13 22:31:24,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 3485.3ms TimeCoverageRelationStatistics Valid=927, Invalid=2379, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:31:24,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8554 states. [2021-10-13 22:31:24,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8554 to 3158. [2021-10-13 22:31:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3156 states have (on average 2.6720532319391634) internal successors, (8433), 3157 states have internal predecessors, (8433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 8433 transitions. [2021-10-13 22:31:24,954 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 8433 transitions. Word has length 96 [2021-10-13 22:31:24,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:24,955 INFO L470 AbstractCegarLoop]: Abstraction has 3158 states and 8433 transitions. [2021-10-13 22:31:24,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:24,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 8433 transitions. [2021-10-13 22:31:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:24,959 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:24,959 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:24,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-13 22:31:24,959 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:24,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:24,959 INFO L82 PathProgramCache]: Analyzing trace with hash -686192875, now seen corresponding path program 17 times [2021-10-13 22:31:24,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:24,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998557608] [2021-10-13 22:31:24,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:24,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:25,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:25,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:25,600 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998557608] [2021-10-13 22:31:25,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998557608] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:25,601 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:25,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:25,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214810419] [2021-10-13 22:31:25,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:25,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:25,602 INFO L87 Difference]: Start difference. First operand 3158 states and 8433 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:29,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:29,352 INFO L93 Difference]: Finished difference Result 8573 states and 21948 transitions. [2021-10-13 22:31:29,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:31:29,352 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:29,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:29,361 INFO L225 Difference]: With dead ends: 8573 [2021-10-13 22:31:29,361 INFO L226 Difference]: Without dead ends: 8573 [2021-10-13 22:31:29,362 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 3289.7ms TimeCoverageRelationStatistics Valid=878, Invalid=2314, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:31:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2021-10-13 22:31:29,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 3110. [2021-10-13 22:31:29,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3108 states have (on average 2.668918918918919) internal successors, (8295), 3109 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) [2021-10-13 22:31:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 8295 transitions. [2021-10-13 22:31:29,411 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 8295 transitions. Word has length 96 [2021-10-13 22:31:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:29,411 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 8295 transitions. [2021-10-13 22:31:29,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 8295 transitions. [2021-10-13 22:31:29,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:29,415 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:29,415 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] [2021-10-13 22:31:29,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-13 22:31:29,416 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:29,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:29,416 INFO L82 PathProgramCache]: Analyzing trace with hash -913609997, now seen corresponding path program 18 times [2021-10-13 22:31:29,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:29,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501692264] [2021-10-13 22:31:29,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:29,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:30,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:30,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:30,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501692264] [2021-10-13 22:31:30,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501692264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:30,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:30,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:30,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498687468] [2021-10-13 22:31:30,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:30,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:30,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:30,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:30,039 INFO L87 Difference]: Start difference. First operand 3110 states and 8295 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:32,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:32,716 INFO L93 Difference]: Finished difference Result 7359 states and 18952 transitions. [2021-10-13 22:31:32,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:31:32,717 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:32,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:32,726 INFO L225 Difference]: With dead ends: 7359 [2021-10-13 22:31:32,726 INFO L226 Difference]: Without dead ends: 7359 [2021-10-13 22:31:32,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2300.1ms TimeCoverageRelationStatistics Valid=641, Invalid=1809, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:31:32,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7359 states. [2021-10-13 22:31:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7359 to 3328. [2021-10-13 22:31:32,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3328 states, 3326 states have (on average 2.6849067949488874) internal successors, (8930), 3327 states have internal predecessors, (8930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3328 states to 3328 states and 8930 transitions. [2021-10-13 22:31:32,789 INFO L78 Accepts]: Start accepts. Automaton has 3328 states and 8930 transitions. Word has length 96 [2021-10-13 22:31:32,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:32,789 INFO L470 AbstractCegarLoop]: Abstraction has 3328 states and 8930 transitions. [2021-10-13 22:31:32,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 3328 states and 8930 transitions. [2021-10-13 22:31:32,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:32,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:32,793 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:32,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-13 22:31:32,794 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:32,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:32,794 INFO L82 PathProgramCache]: Analyzing trace with hash -86523773, now seen corresponding path program 19 times [2021-10-13 22:31:32,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:32,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205210697] [2021-10-13 22:31:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:32,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:33,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:33,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205210697] [2021-10-13 22:31:33,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205210697] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:33,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:33,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:33,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447590202] [2021-10-13 22:31:33,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:33,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:33,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:33,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:33,404 INFO L87 Difference]: Start difference. First operand 3328 states and 8930 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:36,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:36,141 INFO L93 Difference]: Finished difference Result 6805 states and 17385 transitions. [2021-10-13 22:31:36,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:31:36,141 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:36,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:36,149 INFO L225 Difference]: With dead ends: 6805 [2021-10-13 22:31:36,150 INFO L226 Difference]: Without dead ends: 6805 [2021-10-13 22:31:36,150 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2353.7ms TimeCoverageRelationStatistics Valid=626, Invalid=1726, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:31:36,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6805 states. [2021-10-13 22:31:36,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6805 to 3350. [2021-10-13 22:31:36,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.6872759856630823) internal successors, (8997), 3349 states have internal predecessors, (8997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:36,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8997 transitions. [2021-10-13 22:31:36,202 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8997 transitions. Word has length 96 [2021-10-13 22:31:36,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:36,203 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8997 transitions. [2021-10-13 22:31:36,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:36,203 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8997 transitions. [2021-10-13 22:31:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:36,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:36,209 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:36,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-13 22:31:36,209 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1520255679, now seen corresponding path program 20 times [2021-10-13 22:31:36,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:36,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230804935] [2021-10-13 22:31:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:36,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:36,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:36,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:36,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230804935] [2021-10-13 22:31:36,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230804935] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:36,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:36,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:36,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826047993] [2021-10-13 22:31:36,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:36,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=525, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:36,839 INFO L87 Difference]: Start difference. First operand 3350 states and 8997 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:40,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:40,647 INFO L93 Difference]: Finished difference Result 8337 states and 21407 transitions. [2021-10-13 22:31:40,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:31:40,647 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:40,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:40,656 INFO L225 Difference]: With dead ends: 8337 [2021-10-13 22:31:40,656 INFO L226 Difference]: Without dead ends: 8337 [2021-10-13 22:31:40,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 3258.3ms TimeCoverageRelationStatistics Valid=871, Invalid=2099, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:31:40,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8337 states. [2021-10-13 22:31:40,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8337 to 3374. [2021-10-13 22:31:40,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3372 states have (on average 2.6895017793594307) internal successors, (9069), 3373 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) [2021-10-13 22:31:40,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 9069 transitions. [2021-10-13 22:31:40,712 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 9069 transitions. Word has length 96 [2021-10-13 22:31:40,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:40,712 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 9069 transitions. [2021-10-13 22:31:40,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:40,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 9069 transitions. [2021-10-13 22:31:40,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:40,716 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:40,716 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] [2021-10-13 22:31:40,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-13 22:31:40,717 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:40,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:40,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1204099595, now seen corresponding path program 21 times [2021-10-13 22:31:40,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:40,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943562296] [2021-10-13 22:31:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:40,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:41,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:41,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:41,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943562296] [2021-10-13 22:31:41,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943562296] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:41,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:41,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:41,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942728879] [2021-10-13 22:31:41,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:41,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:41,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:41,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:41,350 INFO L87 Difference]: Start difference. First operand 3374 states and 9069 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:45,285 INFO L93 Difference]: Finished difference Result 7947 states and 20384 transitions. [2021-10-13 22:31:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:31:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:45,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:45,294 INFO L225 Difference]: With dead ends: 7947 [2021-10-13 22:31:45,294 INFO L226 Difference]: Without dead ends: 7947 [2021-10-13 22:31:45,295 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 3453.5ms TimeCoverageRelationStatistics Valid=891, Invalid=2189, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:31:45,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7947 states. [2021-10-13 22:31:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7947 to 3362. [2021-10-13 22:31:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.688392857142857) internal successors, (9033), 3361 states have internal predecessors, (9033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:45,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 9033 transitions. [2021-10-13 22:31:45,349 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 9033 transitions. Word has length 96 [2021-10-13 22:31:45,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:45,349 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 9033 transitions. [2021-10-13 22:31:45,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:45,349 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 9033 transitions. [2021-10-13 22:31:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:45,352 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:45,352 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:45,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-13 22:31:45,353 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:45,353 INFO L82 PathProgramCache]: Analyzing trace with hash 23291793, now seen corresponding path program 22 times [2021-10-13 22:31:45,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:45,353 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011446868] [2021-10-13 22:31:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:45,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:45,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:45,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011446868] [2021-10-13 22:31:45,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011446868] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:45,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:45,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:45,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740311257] [2021-10-13 22:31:45,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:45,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:45,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:45,953 INFO L87 Difference]: Start difference. First operand 3362 states and 9033 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:49,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:49,695 INFO L93 Difference]: Finished difference Result 8540 states and 21756 transitions. [2021-10-13 22:31:49,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:31:49,695 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:49,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:49,704 INFO L225 Difference]: With dead ends: 8540 [2021-10-13 22:31:49,704 INFO L226 Difference]: Without dead ends: 8540 [2021-10-13 22:31:49,705 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 3290.0ms TimeCoverageRelationStatistics Valid=874, Invalid=2206, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:31:49,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8540 states. [2021-10-13 22:31:49,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8540 to 3350. [2021-10-13 22:31:49,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.6872759856630823) internal successors, (8997), 3349 states have internal predecessors, (8997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:49,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8997 transitions. [2021-10-13 22:31:49,756 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8997 transitions. Word has length 96 [2021-10-13 22:31:49,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:49,756 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8997 transitions. [2021-10-13 22:31:49,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:49,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8997 transitions. [2021-10-13 22:31:49,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:49,760 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:49,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:49,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-13 22:31:49,760 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:49,760 INFO L82 PathProgramCache]: Analyzing trace with hash -755853929, now seen corresponding path program 23 times [2021-10-13 22:31:49,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:49,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653438415] [2021-10-13 22:31:49,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:49,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:50,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:50,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:50,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653438415] [2021-10-13 22:31:50,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653438415] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:50,374 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:50,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:50,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635541417] [2021-10-13 22:31:50,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:50,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:50,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:50,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:50,374 INFO L87 Difference]: Start difference. First operand 3350 states and 8997 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:53,916 INFO L93 Difference]: Finished difference Result 8559 states and 21799 transitions. [2021-10-13 22:31:53,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:31:53,917 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:53,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:53,925 INFO L225 Difference]: With dead ends: 8559 [2021-10-13 22:31:53,925 INFO L226 Difference]: Without dead ends: 8559 [2021-10-13 22:31:53,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 3100.3ms TimeCoverageRelationStatistics Valid=826, Invalid=2144, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:31:53,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8559 states. [2021-10-13 22:31:53,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8559 to 3314. [2021-10-13 22:31:53,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3314 states, 3312 states have (on average 2.683876811594203) internal successors, (8889), 3313 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) [2021-10-13 22:31:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3314 states to 3314 states and 8889 transitions. [2021-10-13 22:31:53,975 INFO L78 Accepts]: Start accepts. Automaton has 3314 states and 8889 transitions. Word has length 96 [2021-10-13 22:31:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:53,975 INFO L470 AbstractCegarLoop]: Abstraction has 3314 states and 8889 transitions. [2021-10-13 22:31:53,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:53,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3314 states and 8889 transitions. [2021-10-13 22:31:53,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:53,978 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:53,978 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:53,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-13 22:31:53,979 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:53,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:53,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2084547317, now seen corresponding path program 24 times [2021-10-13 22:31:53,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:53,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007864584] [2021-10-13 22:31:53,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:53,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:54,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:54,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:54,596 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007864584] [2021-10-13 22:31:54,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007864584] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:54,596 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:54,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:54,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284045091] [2021-10-13 22:31:54,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:54,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:54,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:54,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:54,597 INFO L87 Difference]: Start difference. First operand 3314 states and 8889 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:31:57,200 INFO L93 Difference]: Finished difference Result 5913 states and 15031 transitions. [2021-10-13 22:31:57,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:31:57,201 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:31:57,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:31:57,208 INFO L225 Difference]: With dead ends: 5913 [2021-10-13 22:31:57,208 INFO L226 Difference]: Without dead ends: 5913 [2021-10-13 22:31:57,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2295.2ms TimeCoverageRelationStatistics Valid=611, Invalid=1741, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:31:57,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2021-10-13 22:31:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 3336. [2021-10-13 22:31:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3334 states have (on average 2.6820635872825433) internal successors, (8942), 3335 states have internal predecessors, (8942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:57,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 8942 transitions. [2021-10-13 22:31:57,271 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 8942 transitions. Word has length 96 [2021-10-13 22:31:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:31:57,271 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 8942 transitions. [2021-10-13 22:31:57,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:31:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 8942 transitions. [2021-10-13 22:31:57,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:31:57,275 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:31:57,275 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:31:57,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-13 22:31:57,275 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:31:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:31:57,275 INFO L82 PathProgramCache]: Analyzing trace with hash -2057693245, now seen corresponding path program 25 times [2021-10-13 22:31:57,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:31:57,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929886865] [2021-10-13 22:31:57,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:31:57,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:31:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:31:57,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:31:57,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:31:57,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929886865] [2021-10-13 22:31:57,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929886865] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:31:57,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:31:57,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:31:57,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113601983] [2021-10-13 22:31:57,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:31:57,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:31:57,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:31:57,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:31:57,856 INFO L87 Difference]: Start difference. First operand 3336 states and 8942 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:00,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:00,228 INFO L93 Difference]: Finished difference Result 5935 states and 15089 transitions. [2021-10-13 22:32:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:00,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:00,234 INFO L225 Difference]: With dead ends: 5935 [2021-10-13 22:32:00,235 INFO L226 Difference]: Without dead ends: 5935 [2021-10-13 22:32:00,235 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2076.8ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2021-10-13 22:32:00,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 3348. [2021-10-13 22:32:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:00,283 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:00,283 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:00,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:00,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:00,286 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:00,286 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:00,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-13 22:32:00,287 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:00,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:00,287 INFO L82 PathProgramCache]: Analyzing trace with hash -905650153, now seen corresponding path program 26 times [2021-10-13 22:32:00,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:00,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162328712] [2021-10-13 22:32:00,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:00,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:00,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:00,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162328712] [2021-10-13 22:32:00,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162328712] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:00,887 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:00,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:00,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414421811] [2021-10-13 22:32:00,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:00,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:00,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:00,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:00,888 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:03,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:03,271 INFO L93 Difference]: Finished difference Result 6082 states and 15400 transitions. [2021-10-13 22:32:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:03,271 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:03,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:03,278 INFO L225 Difference]: With dead ends: 6082 [2021-10-13 22:32:03,279 INFO L226 Difference]: Without dead ends: 6082 [2021-10-13 22:32:03,279 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2080.2ms TimeCoverageRelationStatistics Valid=549, Invalid=1613, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2021-10-13 22:32:03,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 3348. [2021-10-13 22:32:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:03,328 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:03,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:03,328 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:03,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:03,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:03,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:03,331 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:03,331 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:03,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-13 22:32:03,332 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:03,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash 828275583, now seen corresponding path program 27 times [2021-10-13 22:32:03,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:03,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136870662] [2021-10-13 22:32:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:03,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:03,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:03,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136870662] [2021-10-13 22:32:03,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136870662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:03,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:03,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:03,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795832059] [2021-10-13 22:32:03,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:03,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:03,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:03,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:03,910 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:06,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:06,386 INFO L93 Difference]: Finished difference Result 6004 states and 15242 transitions. [2021-10-13 22:32:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:32:06,386 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:06,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:06,392 INFO L225 Difference]: With dead ends: 6004 [2021-10-13 22:32:06,392 INFO L226 Difference]: Without dead ends: 6004 [2021-10-13 22:32:06,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2150.3ms TimeCoverageRelationStatistics Valid=582, Invalid=1674, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:32:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6004 states. [2021-10-13 22:32:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6004 to 3348. [2021-10-13 22:32:06,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:06,439 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:06,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:06,439 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:06,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:06,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:06,443 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] [2021-10-13 22:32:06,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-13 22:32:06,443 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:06,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:06,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1247742083, now seen corresponding path program 28 times [2021-10-13 22:32:06,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:06,444 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944655047] [2021-10-13 22:32:06,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:06,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:06,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:07,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:07,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:07,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944655047] [2021-10-13 22:32:07,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944655047] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:07,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:07,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:07,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481913885] [2021-10-13 22:32:07,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:07,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:07,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:07,046 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:09,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:09,812 INFO L93 Difference]: Finished difference Result 5896 states and 15114 transitions. [2021-10-13 22:32:09,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:09,812 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:09,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:09,819 INFO L225 Difference]: With dead ends: 5896 [2021-10-13 22:32:09,819 INFO L226 Difference]: Without dead ends: 5896 [2021-10-13 22:32:09,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2383.9ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:09,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2021-10-13 22:32:09,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 3348. [2021-10-13 22:32:09,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:09,866 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:09,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:09,866 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:09,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:09,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:09,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:09,869 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:09,869 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:09,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-13 22:32:09,870 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:09,870 INFO L82 PathProgramCache]: Analyzing trace with hash 149814047, now seen corresponding path program 29 times [2021-10-13 22:32:09,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:09,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5332887] [2021-10-13 22:32:09,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:09,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:10,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:10,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:10,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5332887] [2021-10-13 22:32:10,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5332887] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:10,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:10,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:10,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741067660] [2021-10-13 22:32:10,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:10,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:10,502 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:14,169 INFO L93 Difference]: Finished difference Result 6972 states and 17957 transitions. [2021-10-13 22:32:14,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:32:14,169 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:14,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:14,178 INFO L225 Difference]: With dead ends: 6972 [2021-10-13 22:32:14,178 INFO L226 Difference]: Without dead ends: 6972 [2021-10-13 22:32:14,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 3231.1ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:32:14,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6972 states. [2021-10-13 22:32:14,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6972 to 3348. [2021-10-13 22:32:14,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:14,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:14,227 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:14,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:14,228 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:14,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:14,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:14,231 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:14,231 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:14,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-13 22:32:14,232 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:14,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:14,232 INFO L82 PathProgramCache]: Analyzing trace with hash 820143621, now seen corresponding path program 30 times [2021-10-13 22:32:14,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:14,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642978587] [2021-10-13 22:32:14,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:14,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:14,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:14,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:14,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642978587] [2021-10-13 22:32:14,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642978587] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:14,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:14,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:14,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200049508] [2021-10-13 22:32:14,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:14,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:14,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:14,838 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:17,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:17,409 INFO L93 Difference]: Finished difference Result 5825 states and 14839 transitions. [2021-10-13 22:32:17,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:17,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:17,417 INFO L225 Difference]: With dead ends: 5825 [2021-10-13 22:32:17,417 INFO L226 Difference]: Without dead ends: 5825 [2021-10-13 22:32:17,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2263.9ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:17,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5825 states. [2021-10-13 22:32:17,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5825 to 3350. [2021-10-13 22:32:17,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.6813022700119475) internal successors, (8977), 3349 states have internal predecessors, (8977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8977 transitions. [2021-10-13 22:32:17,463 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8977 transitions. Word has length 96 [2021-10-13 22:32:17,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:17,463 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8977 transitions. [2021-10-13 22:32:17,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:17,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8977 transitions. [2021-10-13 22:32:17,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:17,467 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:17,467 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:17,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-13 22:32:17,467 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:17,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:17,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1108655629, now seen corresponding path program 31 times [2021-10-13 22:32:17,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:17,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768697748] [2021-10-13 22:32:17,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:17,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:18,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:18,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768697748] [2021-10-13 22:32:18,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768697748] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:18,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:18,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:18,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058713106] [2021-10-13 22:32:18,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:18,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:18,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:18,044 INFO L87 Difference]: Start difference. First operand 3350 states and 8977 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:20,736 INFO L93 Difference]: Finished difference Result 5703 states and 14587 transitions. [2021-10-13 22:32:20,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:20,740 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:20,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:20,747 INFO L225 Difference]: With dead ends: 5703 [2021-10-13 22:32:20,747 INFO L226 Difference]: Without dead ends: 5703 [2021-10-13 22:32:20,748 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2260.7ms TimeCoverageRelationStatistics Valid=579, Invalid=1583, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:20,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5703 states. [2021-10-13 22:32:20,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5703 to 3348. [2021-10-13 22:32:20,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:20,790 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:20,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:20,790 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:20,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:20,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:20,794 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:20,794 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] [2021-10-13 22:32:20,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-13 22:32:20,794 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:20,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:20,794 INFO L82 PathProgramCache]: Analyzing trace with hash -838336909, now seen corresponding path program 32 times [2021-10-13 22:32:20,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:20,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355379676] [2021-10-13 22:32:20,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:20,794 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:21,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:21,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:21,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355379676] [2021-10-13 22:32:21,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355379676] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:21,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:21,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:21,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755749750] [2021-10-13 22:32:21,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:21,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:21,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:21,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:21,372 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:24,978 INFO L93 Difference]: Finished difference Result 7933 states and 20406 transitions. [2021-10-13 22:32:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:32:24,978 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:24,989 INFO L225 Difference]: With dead ends: 7933 [2021-10-13 22:32:24,989 INFO L226 Difference]: Without dead ends: 7933 [2021-10-13 22:32:24,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 3138.6ms TimeCoverageRelationStatistics Valid=780, Invalid=1872, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:32:24,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7933 states. [2021-10-13 22:32:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7933 to 3360. [2021-10-13 22:32:25,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3360 states, 3358 states have (on average 2.682549136390709) internal successors, (9008), 3359 states have internal predecessors, (9008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3360 states to 3360 states and 9008 transitions. [2021-10-13 22:32:25,038 INFO L78 Accepts]: Start accepts. Automaton has 3360 states and 9008 transitions. Word has length 96 [2021-10-13 22:32:25,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:25,038 INFO L470 AbstractCegarLoop]: Abstraction has 3360 states and 9008 transitions. [2021-10-13 22:32:25,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:25,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3360 states and 9008 transitions. [2021-10-13 22:32:25,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:25,042 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:25,042 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:25,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-13 22:32:25,042 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:25,042 INFO L82 PathProgramCache]: Analyzing trace with hash -20846415, now seen corresponding path program 33 times [2021-10-13 22:32:25,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:25,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205285000] [2021-10-13 22:32:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:25,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:25,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:25,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205285000] [2021-10-13 22:32:25,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205285000] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:25,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:25,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:25,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418234405] [2021-10-13 22:32:25,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:25,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:25,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:25,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:25,643 INFO L87 Difference]: Start difference. First operand 3360 states and 9008 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:28,316 INFO L93 Difference]: Finished difference Result 6774 states and 17420 transitions. [2021-10-13 22:32:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:28,317 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:28,324 INFO L225 Difference]: With dead ends: 6774 [2021-10-13 22:32:28,325 INFO L226 Difference]: Without dead ends: 6774 [2021-10-13 22:32:28,326 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 2346.0ms TimeCoverageRelationStatistics Valid=594, Invalid=1568, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6774 states. [2021-10-13 22:32:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6774 to 3348. [2021-10-13 22:32:28,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 3346 states have (on average 2.6814106395696355) internal successors, (8972), 3347 states have internal predecessors, (8972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:28,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 8972 transitions. [2021-10-13 22:32:28,367 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 8972 transitions. Word has length 96 [2021-10-13 22:32:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:28,367 INFO L470 AbstractCegarLoop]: Abstraction has 3348 states and 8972 transitions. [2021-10-13 22:32:28,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:28,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 8972 transitions. [2021-10-13 22:32:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:28,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:28,371 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:28,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-13 22:32:28,371 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:28,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:28,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1858537281, now seen corresponding path program 34 times [2021-10-13 22:32:28,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:28,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421958028] [2021-10-13 22:32:28,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:28,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:28,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:28,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:28,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421958028] [2021-10-13 22:32:28,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421958028] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:28,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:28,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:28,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387334614] [2021-10-13 22:32:28,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:28,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:28,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:28,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:28,949 INFO L87 Difference]: Start difference. First operand 3348 states and 8972 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:31,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:31,386 INFO L93 Difference]: Finished difference Result 5882 states and 14968 transitions. [2021-10-13 22:32:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:31,386 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:31,394 INFO L225 Difference]: With dead ends: 5882 [2021-10-13 22:32:31,394 INFO L226 Difference]: Without dead ends: 5882 [2021-10-13 22:32:31,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2153.6ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:31,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5882 states. [2021-10-13 22:32:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5882 to 3342. [2021-10-13 22:32:31,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3342 states, 3340 states have (on average 2.681736526946108) internal successors, (8957), 3341 states have internal predecessors, (8957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:31,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3342 states to 3342 states and 8957 transitions. [2021-10-13 22:32:31,445 INFO L78 Accepts]: Start accepts. Automaton has 3342 states and 8957 transitions. Word has length 96 [2021-10-13 22:32:31,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:31,445 INFO L470 AbstractCegarLoop]: Abstraction has 3342 states and 8957 transitions. [2021-10-13 22:32:31,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:31,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3342 states and 8957 transitions. [2021-10-13 22:32:31,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:31,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:31,449 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:31,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-13 22:32:31,449 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:31,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:31,449 INFO L82 PathProgramCache]: Analyzing trace with hash 507630765, now seen corresponding path program 35 times [2021-10-13 22:32:31,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:31,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840099921] [2021-10-13 22:32:31,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:31,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:32,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:32,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840099921] [2021-10-13 22:32:32,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840099921] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:32,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:32,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:32,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938865245] [2021-10-13 22:32:32,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:32,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:32,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:32,013 INFO L87 Difference]: Start difference. First operand 3342 states and 8957 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:34,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:34,449 INFO L93 Difference]: Finished difference Result 6029 states and 15279 transitions. [2021-10-13 22:32:34,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:34,449 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:34,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:34,455 INFO L225 Difference]: With dead ends: 6029 [2021-10-13 22:32:34,456 INFO L226 Difference]: Without dead ends: 6029 [2021-10-13 22:32:34,456 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2135.1ms TimeCoverageRelationStatistics Valid=564, Invalid=1598, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-10-13 22:32:34,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3340. [2021-10-13 22:32:34,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3340 states, 3338 states have (on average 2.681845416417016) internal successors, (8952), 3339 states have internal predecessors, (8952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3340 states to 3340 states and 8952 transitions. [2021-10-13 22:32:34,502 INFO L78 Accepts]: Start accepts. Automaton has 3340 states and 8952 transitions. Word has length 96 [2021-10-13 22:32:34,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:34,503 INFO L470 AbstractCegarLoop]: Abstraction has 3340 states and 8952 transitions. [2021-10-13 22:32:34,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:34,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3340 states and 8952 transitions. [2021-10-13 22:32:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:34,506 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:34,506 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] [2021-10-13 22:32:34,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-13 22:32:34,507 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:34,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:34,507 INFO L82 PathProgramCache]: Analyzing trace with hash 2116209599, now seen corresponding path program 36 times [2021-10-13 22:32:34,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:34,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308287912] [2021-10-13 22:32:34,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:34,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:35,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:35,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:35,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308287912] [2021-10-13 22:32:35,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308287912] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:35,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:35,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:35,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118785603] [2021-10-13 22:32:35,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:35,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:35,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:35,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:35,057 INFO L87 Difference]: Start difference. First operand 3340 states and 8952 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:37,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:37,689 INFO L93 Difference]: Finished difference Result 5790 states and 14782 transitions. [2021-10-13 22:32:37,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:32:37,689 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:37,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:37,696 INFO L225 Difference]: With dead ends: 5790 [2021-10-13 22:32:37,696 INFO L226 Difference]: Without dead ends: 5790 [2021-10-13 22:32:37,696 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2246.7ms TimeCoverageRelationStatistics Valid=597, Invalid=1659, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:32:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5790 states. [2021-10-13 22:32:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5790 to 3336. [2021-10-13 22:32:37,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3334 states have (on average 2.6820635872825433) internal successors, (8942), 3335 states have internal predecessors, (8942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 8942 transitions. [2021-10-13 22:32:37,743 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 8942 transitions. Word has length 96 [2021-10-13 22:32:37,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:37,744 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 8942 transitions. [2021-10-13 22:32:37,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 8942 transitions. [2021-10-13 22:32:37,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:37,747 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:37,747 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:37,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-10-13 22:32:37,747 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash -983015461, now seen corresponding path program 37 times [2021-10-13 22:32:37,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:37,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453916898] [2021-10-13 22:32:37,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:37,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:38,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:38,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453916898] [2021-10-13 22:32:38,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453916898] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:38,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:38,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:38,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966799015] [2021-10-13 22:32:38,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:38,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:38,303 INFO L87 Difference]: Start difference. First operand 3336 states and 8942 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:42,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:42,116 INFO L93 Difference]: Finished difference Result 7685 states and 19693 transitions. [2021-10-13 22:32:42,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:32:42,116 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:42,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:42,125 INFO L225 Difference]: With dead ends: 7685 [2021-10-13 22:32:42,125 INFO L226 Difference]: Without dead ends: 7685 [2021-10-13 22:32:42,125 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 3292.4ms TimeCoverageRelationStatistics Valid=836, Invalid=2026, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:32:42,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7685 states. [2021-10-13 22:32:42,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7685 to 3300. [2021-10-13 22:32:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3300 states, 3298 states have (on average 2.6785930867192236) internal successors, (8834), 3299 states have internal predecessors, (8834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 8834 transitions. [2021-10-13 22:32:42,178 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 8834 transitions. Word has length 96 [2021-10-13 22:32:42,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:42,179 INFO L470 AbstractCegarLoop]: Abstraction has 3300 states and 8834 transitions. [2021-10-13 22:32:42,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 8834 transitions. [2021-10-13 22:32:42,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:42,182 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:42,182 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] [2021-10-13 22:32:42,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-10-13 22:32:42,182 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:42,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:42,183 INFO L82 PathProgramCache]: Analyzing trace with hash -165524967, now seen corresponding path program 38 times [2021-10-13 22:32:42,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:42,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889581927] [2021-10-13 22:32:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:42,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:42,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:42,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:42,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889581927] [2021-10-13 22:32:42,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889581927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:42,790 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:42,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:42,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393364760] [2021-10-13 22:32:42,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:42,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:42,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:42,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:42,791 INFO L87 Difference]: Start difference. First operand 3300 states and 8834 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:46,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:46,413 INFO L93 Difference]: Finished difference Result 7910 states and 20097 transitions. [2021-10-13 22:32:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:32:46,414 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:46,421 INFO L225 Difference]: With dead ends: 7910 [2021-10-13 22:32:46,421 INFO L226 Difference]: Without dead ends: 7910 [2021-10-13 22:32:46,421 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 3188.4ms TimeCoverageRelationStatistics Valid=820, Invalid=2042, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:32:46,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7910 states. [2021-10-13 22:32:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7910 to 3288. [2021-10-13 22:32:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3286 states have (on average 2.6774193548387095) internal successors, (8798), 3287 states have internal predecessors, (8798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:46,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 8798 transitions. [2021-10-13 22:32:46,464 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 8798 transitions. Word has length 96 [2021-10-13 22:32:46,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:46,465 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 8798 transitions. [2021-10-13 22:32:46,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 8798 transitions. [2021-10-13 22:32:46,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:46,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:46,468 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:46,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-10-13 22:32:46,468 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:46,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:46,468 INFO L82 PathProgramCache]: Analyzing trace with hash -944670689, now seen corresponding path program 39 times [2021-10-13 22:32:46,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:46,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090105951] [2021-10-13 22:32:46,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:46,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:47,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:47,009 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090105951] [2021-10-13 22:32:47,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090105951] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:47,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:47,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:47,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299640224] [2021-10-13 22:32:47,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:47,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:47,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:47,010 INFO L87 Difference]: Start difference. First operand 3288 states and 8798 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:49,730 INFO L93 Difference]: Finished difference Result 6425 states and 16429 transitions. [2021-10-13 22:32:49,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:32:49,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:49,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:49,737 INFO L225 Difference]: With dead ends: 6425 [2021-10-13 22:32:49,737 INFO L226 Difference]: Without dead ends: 6425 [2021-10-13 22:32:49,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 2331.5ms TimeCoverageRelationStatistics Valid=612, Invalid=1644, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:32:49,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6425 states. [2021-10-13 22:32:49,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6425 to 3252. [2021-10-13 22:32:49,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3250 states have (on average 2.675692307692308) internal successors, (8696), 3251 states have internal predecessors, (8696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:49,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 8696 transitions. [2021-10-13 22:32:49,775 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 8696 transitions. Word has length 96 [2021-10-13 22:32:49,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:49,775 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 8696 transitions. [2021-10-13 22:32:49,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:49,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 8696 transitions. [2021-10-13 22:32:49,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:49,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:49,778 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:49,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-10-13 22:32:49,779 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1128353641, now seen corresponding path program 40 times [2021-10-13 22:32:49,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:49,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985608641] [2021-10-13 22:32:49,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:49,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:50,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:50,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985608641] [2021-10-13 22:32:50,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985608641] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:50,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:50,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:50,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366701314] [2021-10-13 22:32:50,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:50,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:50,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:50,327 INFO L87 Difference]: Start difference. First operand 3252 states and 8696 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:52,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:52,809 INFO L93 Difference]: Finished difference Result 4988 states and 12681 transitions. [2021-10-13 22:32:52,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:32:52,809 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:52,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:52,815 INFO L225 Difference]: With dead ends: 4988 [2021-10-13 22:32:52,815 INFO L226 Difference]: Without dead ends: 4988 [2021-10-13 22:32:52,815 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2204.9ms TimeCoverageRelationStatistics Valid=626, Invalid=1824, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:32:52,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2021-10-13 22:32:52,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 3282. [2021-10-13 22:32:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3282 states, 3280 states have (on average 2.6740853658536587) internal successors, (8771), 3281 states have internal predecessors, (8771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3282 states to 3282 states and 8771 transitions. [2021-10-13 22:32:52,853 INFO L78 Accepts]: Start accepts. Automaton has 3282 states and 8771 transitions. Word has length 96 [2021-10-13 22:32:52,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:52,854 INFO L470 AbstractCegarLoop]: Abstraction has 3282 states and 8771 transitions. [2021-10-13 22:32:52,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:52,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3282 states and 8771 transitions. [2021-10-13 22:32:52,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:52,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:52,857 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:52,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-10-13 22:32:52,857 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:52,857 INFO L82 PathProgramCache]: Analyzing trace with hash -781545237, now seen corresponding path program 41 times [2021-10-13 22:32:52,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:52,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844592187] [2021-10-13 22:32:52,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:52,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:53,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:53,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844592187] [2021-10-13 22:32:53,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844592187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:53,431 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:53,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:53,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683399465] [2021-10-13 22:32:53,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:53,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:53,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:53,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:53,431 INFO L87 Difference]: Start difference. First operand 3282 states and 8771 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:55,868 INFO L93 Difference]: Finished difference Result 5041 states and 12791 transitions. [2021-10-13 22:32:55,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:32:55,869 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:55,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:55,874 INFO L225 Difference]: With dead ends: 5041 [2021-10-13 22:32:55,874 INFO L226 Difference]: Without dead ends: 5041 [2021-10-13 22:32:55,875 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 2147.9ms TimeCoverageRelationStatistics Valid=596, Invalid=1756, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:32:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5041 states. [2021-10-13 22:32:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5041 to 3280. [2021-10-13 22:32:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3280 states, 3278 states have (on average 2.6741915802318488) internal successors, (8766), 3279 states have internal predecessors, (8766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:55,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3280 states to 3280 states and 8766 transitions. [2021-10-13 22:32:55,924 INFO L78 Accepts]: Start accepts. Automaton has 3280 states and 8766 transitions. Word has length 96 [2021-10-13 22:32:55,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:55,924 INFO L470 AbstractCegarLoop]: Abstraction has 3280 states and 8766 transitions. [2021-10-13 22:32:55,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:55,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3280 states and 8766 transitions. [2021-10-13 22:32:55,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:55,927 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:55,928 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:32:55,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-10-13 22:32:55,928 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:55,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:55,928 INFO L82 PathProgramCache]: Analyzing trace with hash -628818503, now seen corresponding path program 42 times [2021-10-13 22:32:55,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:55,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057602489] [2021-10-13 22:32:55,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:55,928 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:56,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:56,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057602489] [2021-10-13 22:32:56,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057602489] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:56,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:56,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:56,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924124177] [2021-10-13 22:32:56,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:56,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:56,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:56,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:56,469 INFO L87 Difference]: Start difference. First operand 3280 states and 8766 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:32:58,670 INFO L93 Difference]: Finished difference Result 4832 states and 12348 transitions. [2021-10-13 22:32:58,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:32:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:32:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:32:58,676 INFO L225 Difference]: With dead ends: 4832 [2021-10-13 22:32:58,676 INFO L226 Difference]: Without dead ends: 4832 [2021-10-13 22:32:58,677 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1937.9ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:32:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2021-10-13 22:32:58,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 3274. [2021-10-13 22:32:58,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3274 states, 3272 states have (on average 2.6745110024449876) internal successors, (8751), 3273 states have internal predecessors, (8751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:58,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3274 states to 3274 states and 8751 transitions. [2021-10-13 22:32:58,715 INFO L78 Accepts]: Start accepts. Automaton has 3274 states and 8751 transitions. Word has length 96 [2021-10-13 22:32:58,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:32:58,715 INFO L470 AbstractCegarLoop]: Abstraction has 3274 states and 8751 transitions. [2021-10-13 22:32:58,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:32:58,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3274 states and 8751 transitions. [2021-10-13 22:32:58,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:32:58,718 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:32:58,718 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] [2021-10-13 22:32:58,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-10-13 22:32:58,718 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:32:58,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:32:58,718 INFO L82 PathProgramCache]: Analyzing trace with hash 523224589, now seen corresponding path program 43 times [2021-10-13 22:32:58,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:32:58,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308755409] [2021-10-13 22:32:58,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:32:58,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:32:58,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:32:59,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:32:59,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:32:59,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308755409] [2021-10-13 22:32:59,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308755409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:32:59,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:32:59,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:32:59,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792478241] [2021-10-13 22:32:59,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:32:59,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:32:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:32:59,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:32:59,261 INFO L87 Difference]: Start difference. First operand 3274 states and 8751 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:01,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:01,448 INFO L93 Difference]: Finished difference Result 4979 states and 12659 transitions. [2021-10-13 22:33:01,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:33:01,448 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:01,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:01,453 INFO L225 Difference]: With dead ends: 4979 [2021-10-13 22:33:01,454 INFO L226 Difference]: Without dead ends: 4979 [2021-10-13 22:33:01,454 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1926.4ms TimeCoverageRelationStatistics Valid=534, Invalid=1628, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:33:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2021-10-13 22:33:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 3272. [2021-10-13 22:33:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3272 states, 3270 states have (on average 2.674617737003058) internal successors, (8746), 3271 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) [2021-10-13 22:33:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3272 states to 3272 states and 8746 transitions. [2021-10-13 22:33:01,495 INFO L78 Accepts]: Start accepts. Automaton has 3272 states and 8746 transitions. Word has length 96 [2021-10-13 22:33:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:01,495 INFO L470 AbstractCegarLoop]: Abstraction has 3272 states and 8746 transitions. [2021-10-13 22:33:01,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:01,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 8746 transitions. [2021-10-13 22:33:01,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:01,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:01,498 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] [2021-10-13 22:33:01,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-10-13 22:33:01,499 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:01,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:01,499 INFO L82 PathProgramCache]: Analyzing trace with hash -2037816971, now seen corresponding path program 44 times [2021-10-13 22:33:01,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:01,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273575094] [2021-10-13 22:33:01,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:01,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:02,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:02,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:02,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273575094] [2021-10-13 22:33:02,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273575094] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:02,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:02,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:02,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924379156] [2021-10-13 22:33:02,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:02,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:02,078 INFO L87 Difference]: Start difference. First operand 3272 states and 8746 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:04,437 INFO L93 Difference]: Finished difference Result 4894 states and 12494 transitions. [2021-10-13 22:33:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:33:04,437 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:04,442 INFO L225 Difference]: With dead ends: 4894 [2021-10-13 22:33:04,442 INFO L226 Difference]: Without dead ends: 4894 [2021-10-13 22:33:04,442 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2076.3ms TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:33:04,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2021-10-13 22:33:04,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 3254. [2021-10-13 22:33:04,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3254 states, 3252 states have (on average 2.6755842558425584) internal successors, (8701), 3253 states have internal predecessors, (8701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:04,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3254 states to 3254 states and 8701 transitions. [2021-10-13 22:33:04,475 INFO L78 Accepts]: Start accepts. Automaton has 3254 states and 8701 transitions. Word has length 96 [2021-10-13 22:33:04,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:04,475 INFO L470 AbstractCegarLoop]: Abstraction has 3254 states and 8701 transitions. [2021-10-13 22:33:04,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:04,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3254 states and 8701 transitions. [2021-10-13 22:33:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:04,478 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:04,478 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:04,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-10-13 22:33:04,478 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:04,479 INFO L82 PathProgramCache]: Analyzing trace with hash -348413757, now seen corresponding path program 45 times [2021-10-13 22:33:04,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:04,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295852752] [2021-10-13 22:33:04,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:04,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:05,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:05,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:05,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295852752] [2021-10-13 22:33:05,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295852752] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:05,008 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:05,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:05,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536469278] [2021-10-13 22:33:05,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:05,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:05,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:05,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:05,009 INFO L87 Difference]: Start difference. First operand 3254 states and 8701 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:08,383 INFO L93 Difference]: Finished difference Result 9410 states and 24160 transitions. [2021-10-13 22:33:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:33:08,383 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:08,393 INFO L225 Difference]: With dead ends: 9410 [2021-10-13 22:33:08,393 INFO L226 Difference]: Without dead ends: 9410 [2021-10-13 22:33:08,394 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 2945.0ms TimeCoverageRelationStatistics Valid=826, Invalid=2254, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:33:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9410 states. [2021-10-13 22:33:08,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9410 to 3446. [2021-10-13 22:33:08,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3446 states, 3444 states have (on average 2.6919279907084785) internal successors, (9271), 3445 states have internal predecessors, (9271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:08,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3446 states to 3446 states and 9271 transitions. [2021-10-13 22:33:08,499 INFO L78 Accepts]: Start accepts. Automaton has 3446 states and 9271 transitions. Word has length 96 [2021-10-13 22:33:08,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:08,499 INFO L470 AbstractCegarLoop]: Abstraction has 3446 states and 9271 transitions. [2021-10-13 22:33:08,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:08,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3446 states and 9271 transitions. [2021-10-13 22:33:08,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:08,503 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:08,503 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:08,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-10-13 22:33:08,503 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:08,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:08,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1782145663, now seen corresponding path program 46 times [2021-10-13 22:33:08,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:08,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339652711] [2021-10-13 22:33:08,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:08,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:09,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:09,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339652711] [2021-10-13 22:33:09,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339652711] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:09,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:09,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:09,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158997421] [2021-10-13 22:33:09,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:09,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:09,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:09,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:09,053 INFO L87 Difference]: Start difference. First operand 3446 states and 9271 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:12,880 INFO L93 Difference]: Finished difference Result 8855 states and 22990 transitions. [2021-10-13 22:33:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:33:12,880 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:12,890 INFO L225 Difference]: With dead ends: 8855 [2021-10-13 22:33:12,891 INFO L226 Difference]: Without dead ends: 8855 [2021-10-13 22:33:12,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 3357.9ms TimeCoverageRelationStatistics Valid=923, Invalid=2269, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:33:12,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8855 states. [2021-10-13 22:33:12,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8855 to 3374. [2021-10-13 22:33:12,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3374 states, 3372 states have (on average 2.685349940688019) internal successors, (9055), 3373 states have internal predecessors, (9055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:12,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3374 states to 3374 states and 9055 transitions. [2021-10-13 22:33:12,955 INFO L78 Accepts]: Start accepts. Automaton has 3374 states and 9055 transitions. Word has length 96 [2021-10-13 22:33:12,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:12,955 INFO L470 AbstractCegarLoop]: Abstraction has 3374 states and 9055 transitions. [2021-10-13 22:33:12,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3374 states and 9055 transitions. [2021-10-13 22:33:12,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:12,958 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:12,958 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:12,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-10-13 22:33:12,958 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:12,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1465989579, now seen corresponding path program 47 times [2021-10-13 22:33:12,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:12,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163352411] [2021-10-13 22:33:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:12,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:13,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:13,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163352411] [2021-10-13 22:33:13,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163352411] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:13,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:13,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:13,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044915462] [2021-10-13 22:33:13,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:13,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:13,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:13,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:13,507 INFO L87 Difference]: Start difference. First operand 3374 states and 9055 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:17,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:17,637 INFO L93 Difference]: Finished difference Result 8465 states and 21967 transitions. [2021-10-13 22:33:17,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:33:17,637 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:17,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:17,645 INFO L225 Difference]: With dead ends: 8465 [2021-10-13 22:33:17,645 INFO L226 Difference]: Without dead ends: 8465 [2021-10-13 22:33:17,645 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 3621.6ms TimeCoverageRelationStatistics Valid=944, Invalid=2362, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:33:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8465 states. [2021-10-13 22:33:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8465 to 3362. [2021-10-13 22:33:17,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3362 states, 3360 states have (on average 2.6842261904761906) internal successors, (9019), 3361 states have internal predecessors, (9019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3362 states to 3362 states and 9019 transitions. [2021-10-13 22:33:17,693 INFO L78 Accepts]: Start accepts. Automaton has 3362 states and 9019 transitions. Word has length 96 [2021-10-13 22:33:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:17,693 INFO L470 AbstractCegarLoop]: Abstraction has 3362 states and 9019 transitions. [2021-10-13 22:33:17,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3362 states and 9019 transitions. [2021-10-13 22:33:17,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:17,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:17,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:17,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-10-13 22:33:17,696 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:17,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash -238598191, now seen corresponding path program 48 times [2021-10-13 22:33:17,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:17,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692878462] [2021-10-13 22:33:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:17,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:18,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:18,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:18,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692878462] [2021-10-13 22:33:18,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692878462] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:18,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:18,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:18,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835483911] [2021-10-13 22:33:18,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:18,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:18,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:18,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:18,250 INFO L87 Difference]: Start difference. First operand 3362 states and 9019 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:22,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:22,241 INFO L93 Difference]: Finished difference Result 9058 states and 23339 transitions. [2021-10-13 22:33:22,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:33:22,241 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:22,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:22,249 INFO L225 Difference]: With dead ends: 9058 [2021-10-13 22:33:22,249 INFO L226 Difference]: Without dead ends: 9058 [2021-10-13 22:33:22,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 3470.5ms TimeCoverageRelationStatistics Valid=926, Invalid=2380, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:33:22,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9058 states. [2021-10-13 22:33:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9058 to 3350. [2021-10-13 22:33:22,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3350 states, 3348 states have (on average 2.683094384707288) internal successors, (8983), 3349 states have internal predecessors, (8983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:22,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3350 states to 3350 states and 8983 transitions. [2021-10-13 22:33:22,299 INFO L78 Accepts]: Start accepts. Automaton has 3350 states and 8983 transitions. Word has length 96 [2021-10-13 22:33:22,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:22,299 INFO L470 AbstractCegarLoop]: Abstraction has 3350 states and 8983 transitions. [2021-10-13 22:33:22,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:22,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3350 states and 8983 transitions. [2021-10-13 22:33:22,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:22,302 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:22,302 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:22,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-10-13 22:33:22,303 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:22,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:22,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1017743913, now seen corresponding path program 49 times [2021-10-13 22:33:22,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:22,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540923413] [2021-10-13 22:33:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:22,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:22,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:22,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:22,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540923413] [2021-10-13 22:33:22,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540923413] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:22,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:22,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:22,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758477953] [2021-10-13 22:33:22,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:22,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:22,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:22,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:22,869 INFO L87 Difference]: Start difference. First operand 3350 states and 8983 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:26,549 INFO L93 Difference]: Finished difference Result 9077 states and 23382 transitions. [2021-10-13 22:33:26,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:33:26,549 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:26,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:26,558 INFO L225 Difference]: With dead ends: 9077 [2021-10-13 22:33:26,558 INFO L226 Difference]: Without dead ends: 9077 [2021-10-13 22:33:26,558 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 3241.9ms TimeCoverageRelationStatistics Valid=877, Invalid=2315, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:33:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9077 states. [2021-10-13 22:33:26,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9077 to 3302. [2021-10-13 22:33:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3302 states, 3300 states have (on average 2.68030303030303) internal successors, (8845), 3301 states have internal predecessors, (8845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3302 states to 3302 states and 8845 transitions. [2021-10-13 22:33:26,607 INFO L78 Accepts]: Start accepts. Automaton has 3302 states and 8845 transitions. Word has length 96 [2021-10-13 22:33:26,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:26,607 INFO L470 AbstractCegarLoop]: Abstraction has 3302 states and 8845 transitions. [2021-10-13 22:33:26,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3302 states and 8845 transitions. [2021-10-13 22:33:26,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:26,610 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:26,610 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:26,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-10-13 22:33:26,611 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:26,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:26,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1245161035, now seen corresponding path program 50 times [2021-10-13 22:33:26,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:26,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565401275] [2021-10-13 22:33:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:26,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:27,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:27,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:27,149 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565401275] [2021-10-13 22:33:27,149 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565401275] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:27,149 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:27,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:27,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224833660] [2021-10-13 22:33:27,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:27,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:27,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:27,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:27,150 INFO L87 Difference]: Start difference. First operand 3302 states and 8845 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:29,915 INFO L93 Difference]: Finished difference Result 7863 states and 20386 transitions. [2021-10-13 22:33:29,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:33:29,916 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:29,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:29,925 INFO L225 Difference]: With dead ends: 7863 [2021-10-13 22:33:29,925 INFO L226 Difference]: Without dead ends: 7863 [2021-10-13 22:33:29,925 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2298.6ms TimeCoverageRelationStatistics Valid=640, Invalid=1810, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:33:29,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2021-10-13 22:33:29,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 3784. [2021-10-13 22:33:29,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3782 states have (on average 2.7096774193548385) internal successors, (10248), 3783 states have internal predecessors, (10248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:29,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 10248 transitions. [2021-10-13 22:33:29,981 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 10248 transitions. Word has length 96 [2021-10-13 22:33:29,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:29,981 INFO L470 AbstractCegarLoop]: Abstraction has 3784 states and 10248 transitions. [2021-10-13 22:33:29,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:29,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 10248 transitions. [2021-10-13 22:33:29,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:29,985 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:29,985 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] [2021-10-13 22:33:29,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-10-13 22:33:29,985 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:29,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:29,985 INFO L82 PathProgramCache]: Analyzing trace with hash -418074811, now seen corresponding path program 51 times [2021-10-13 22:33:29,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:29,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871975205] [2021-10-13 22:33:29,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:29,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:30,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:30,519 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871975205] [2021-10-13 22:33:30,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871975205] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:30,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:30,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:30,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926300679] [2021-10-13 22:33:30,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:30,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:30,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:30,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:30,520 INFO L87 Difference]: Start difference. First operand 3784 states and 10248 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:33,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:33,241 INFO L93 Difference]: Finished difference Result 10344 states and 26826 transitions. [2021-10-13 22:33:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:33:33,241 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:33,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:33,254 INFO L225 Difference]: With dead ends: 10344 [2021-10-13 22:33:33,254 INFO L226 Difference]: Without dead ends: 10344 [2021-10-13 22:33:33,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2282.6ms TimeCoverageRelationStatistics Valid=625, Invalid=1727, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:33:33,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10344 states. [2021-10-13 22:33:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10344 to 3832. [2021-10-13 22:33:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3830 states have (on average 2.7133159268929505) internal successors, (10392), 3831 states have internal predecessors, (10392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:33,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 10392 transitions. [2021-10-13 22:33:33,334 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 10392 transitions. Word has length 96 [2021-10-13 22:33:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:33,334 INFO L470 AbstractCegarLoop]: Abstraction has 3832 states and 10392 transitions. [2021-10-13 22:33:33,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 10392 transitions. [2021-10-13 22:33:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:33,338 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:33,338 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] [2021-10-13 22:33:33,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-13 22:33:33,338 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:33,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1851806717, now seen corresponding path program 52 times [2021-10-13 22:33:33,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:33,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167526324] [2021-10-13 22:33:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:33,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:33,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:33,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:33,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167526324] [2021-10-13 22:33:33,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167526324] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:33,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:33,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:33,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551120564] [2021-10-13 22:33:33,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:33,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:33,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:33,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:33,896 INFO L87 Difference]: Start difference. First operand 3832 states and 10392 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:37,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:37,675 INFO L93 Difference]: Finished difference Result 11876 states and 30848 transitions. [2021-10-13 22:33:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:33:37,675 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:37,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:37,687 INFO L225 Difference]: With dead ends: 11876 [2021-10-13 22:33:37,687 INFO L226 Difference]: Without dead ends: 11876 [2021-10-13 22:33:37,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 3228.7ms TimeCoverageRelationStatistics Valid=870, Invalid=2100, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:33:37,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11876 states. [2021-10-13 22:33:37,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11876 to 3856. [2021-10-13 22:33:37,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3854 states have (on average 2.7151011935651272) internal successors, (10464), 3855 states have internal predecessors, (10464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:37,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 10464 transitions. [2021-10-13 22:33:37,751 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 10464 transitions. Word has length 96 [2021-10-13 22:33:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:37,752 INFO L470 AbstractCegarLoop]: Abstraction has 3856 states and 10464 transitions. [2021-10-13 22:33:37,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 10464 transitions. [2021-10-13 22:33:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:37,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:37,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:37,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-10-13 22:33:37,755 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:37,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1535650633, now seen corresponding path program 53 times [2021-10-13 22:33:37,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:37,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505490445] [2021-10-13 22:33:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:37,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:37,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:38,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:38,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505490445] [2021-10-13 22:33:38,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505490445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:38,329 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:38,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:38,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885657906] [2021-10-13 22:33:38,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:38,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:38,330 INFO L87 Difference]: Start difference. First operand 3856 states and 10464 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:42,273 INFO L93 Difference]: Finished difference Result 11486 states and 29825 transitions. [2021-10-13 22:33:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:33:42,274 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:42,287 INFO L225 Difference]: With dead ends: 11486 [2021-10-13 22:33:42,287 INFO L226 Difference]: Without dead ends: 11486 [2021-10-13 22:33:42,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 3483.8ms TimeCoverageRelationStatistics Valid=890, Invalid=2190, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:33:42,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11486 states. [2021-10-13 22:33:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11486 to 3844. [2021-10-13 22:33:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3842 states have (on average 2.7142113482561165) internal successors, (10428), 3843 states have internal predecessors, (10428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:42,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 10428 transitions. [2021-10-13 22:33:42,355 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 10428 transitions. Word has length 96 [2021-10-13 22:33:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:42,355 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 10428 transitions. [2021-10-13 22:33:42,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:42,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 10428 transitions. [2021-10-13 22:33:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:42,358 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:42,358 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:42,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-10-13 22:33:42,358 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:42,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:42,359 INFO L82 PathProgramCache]: Analyzing trace with hash -308259245, now seen corresponding path program 54 times [2021-10-13 22:33:42,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:42,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189191736] [2021-10-13 22:33:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:42,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:42,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:42,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189191736] [2021-10-13 22:33:42,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189191736] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:42,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:42,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:42,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640053142] [2021-10-13 22:33:42,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:42,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:42,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:42,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:42,908 INFO L87 Difference]: Start difference. First operand 3844 states and 10428 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:46,688 INFO L93 Difference]: Finished difference Result 12079 states and 31197 transitions. [2021-10-13 22:33:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:33:46,688 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:46,701 INFO L225 Difference]: With dead ends: 12079 [2021-10-13 22:33:46,701 INFO L226 Difference]: Without dead ends: 12079 [2021-10-13 22:33:46,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3295.3ms TimeCoverageRelationStatistics Valid=873, Invalid=2207, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:33:46,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12079 states. [2021-10-13 22:33:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12079 to 3832. [2021-10-13 22:33:46,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3830 states have (on average 2.7133159268929505) internal successors, (10392), 3831 states have internal predecessors, (10392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 10392 transitions. [2021-10-13 22:33:46,796 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 10392 transitions. Word has length 96 [2021-10-13 22:33:46,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:46,796 INFO L470 AbstractCegarLoop]: Abstraction has 3832 states and 10392 transitions. [2021-10-13 22:33:46,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:46,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 10392 transitions. [2021-10-13 22:33:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:46,800 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:46,800 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:46,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-10-13 22:33:46,800 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:46,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:46,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1087404967, now seen corresponding path program 55 times [2021-10-13 22:33:46,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:46,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908048185] [2021-10-13 22:33:46,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:46,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:46,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:47,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:47,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:47,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908048185] [2021-10-13 22:33:47,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908048185] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:47,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:47,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:47,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911614805] [2021-10-13 22:33:47,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:47,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:47,337 INFO L87 Difference]: Start difference. First operand 3832 states and 10392 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:50,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:50,829 INFO L93 Difference]: Finished difference Result 12098 states and 31240 transitions. [2021-10-13 22:33:50,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:33:50,829 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:50,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:50,843 INFO L225 Difference]: With dead ends: 12098 [2021-10-13 22:33:50,843 INFO L226 Difference]: Without dead ends: 12098 [2021-10-13 22:33:50,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 3045.6ms TimeCoverageRelationStatistics Valid=825, Invalid=2145, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:33:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12098 states. [2021-10-13 22:33:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12098 to 3796. [2021-10-13 22:33:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3796 states, 3794 states have (on average 2.7105956773853452) internal successors, (10284), 3795 states have internal predecessors, (10284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3796 states to 3796 states and 10284 transitions. [2021-10-13 22:33:50,938 INFO L78 Accepts]: Start accepts. Automaton has 3796 states and 10284 transitions. Word has length 96 [2021-10-13 22:33:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:50,938 INFO L470 AbstractCegarLoop]: Abstraction has 3796 states and 10284 transitions. [2021-10-13 22:33:50,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3796 states and 10284 transitions. [2021-10-13 22:33:50,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:50,941 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:50,941 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:50,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-10-13 22:33:50,941 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:50,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:50,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1752996279, now seen corresponding path program 56 times [2021-10-13 22:33:50,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:50,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453748888] [2021-10-13 22:33:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:50,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:51,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:51,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:51,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453748888] [2021-10-13 22:33:51,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453748888] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:51,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:51,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:51,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395717751] [2021-10-13 22:33:51,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:51,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:51,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:51,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:51,477 INFO L87 Difference]: Start difference. First operand 3796 states and 10284 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:54,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:54,094 INFO L93 Difference]: Finished difference Result 9452 states and 24472 transitions. [2021-10-13 22:33:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:33:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:54,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:54,104 INFO L225 Difference]: With dead ends: 9452 [2021-10-13 22:33:54,104 INFO L226 Difference]: Without dead ends: 9452 [2021-10-13 22:33:54,105 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2208.1ms TimeCoverageRelationStatistics Valid=610, Invalid=1742, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:33:54,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2021-10-13 22:33:54,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 3882. [2021-10-13 22:33:54,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3882 states, 3880 states have (on average 2.7152061855670104) internal successors, (10535), 3881 states have internal predecessors, (10535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:54,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 10535 transitions. [2021-10-13 22:33:54,165 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 10535 transitions. Word has length 96 [2021-10-13 22:33:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:54,165 INFO L470 AbstractCegarLoop]: Abstraction has 3882 states and 10535 transitions. [2021-10-13 22:33:54,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:54,166 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 10535 transitions. [2021-10-13 22:33:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:54,169 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:54,169 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:54,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-10-13 22:33:54,169 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:54,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:54,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1905723013, now seen corresponding path program 57 times [2021-10-13 22:33:54,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:54,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973166850] [2021-10-13 22:33:54,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:54,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:54,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:54,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973166850] [2021-10-13 22:33:54,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973166850] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:54,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:54,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:54,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612515539] [2021-10-13 22:33:54,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:54,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:54,716 INFO L87 Difference]: Start difference. First operand 3882 states and 10535 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:33:57,059 INFO L93 Difference]: Finished difference Result 9474 states and 24530 transitions. [2021-10-13 22:33:57,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:33:57,060 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:33:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:33:57,071 INFO L225 Difference]: With dead ends: 9474 [2021-10-13 22:33:57,071 INFO L226 Difference]: Without dead ends: 9474 [2021-10-13 22:33:57,071 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2035.9ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:33:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9474 states. [2021-10-13 22:33:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9474 to 3888. [2021-10-13 22:33:57,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3886 states have (on average 2.714873906330417) internal successors, (10550), 3887 states have internal predecessors, (10550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:57,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 10550 transitions. [2021-10-13 22:33:57,144 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 10550 transitions. Word has length 96 [2021-10-13 22:33:57,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:33:57,144 INFO L470 AbstractCegarLoop]: Abstraction has 3888 states and 10550 transitions. [2021-10-13 22:33:57,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:33:57,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 10550 transitions. [2021-10-13 22:33:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:33:57,148 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:33:57,148 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:33:57,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-10-13 22:33:57,148 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:33:57,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:33:57,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1237201191, now seen corresponding path program 58 times [2021-10-13 22:33:57,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:33:57,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688575921] [2021-10-13 22:33:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:33:57,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:33:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:33:57,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:33:57,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:33:57,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688575921] [2021-10-13 22:33:57,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688575921] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:33:57,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:33:57,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:33:57,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847184319] [2021-10-13 22:33:57,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:33:57,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:33:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:33:57,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:33:57,679 INFO L87 Difference]: Start difference. First operand 3888 states and 10550 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:00,031 INFO L93 Difference]: Finished difference Result 9621 states and 24841 transitions. [2021-10-13 22:34:00,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:00,032 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:00,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:00,042 INFO L225 Difference]: With dead ends: 9621 [2021-10-13 22:34:00,042 INFO L226 Difference]: Without dead ends: 9621 [2021-10-13 22:34:00,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2030.6ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:00,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9621 states. [2021-10-13 22:34:00,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9621 to 3886. [2021-10-13 22:34:00,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3884 states have (on average 2.714984552008239) internal successors, (10545), 3885 states have internal predecessors, (10545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 10545 transitions. [2021-10-13 22:34:00,105 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 10545 transitions. Word has length 96 [2021-10-13 22:34:00,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:00,105 INFO L470 AbstractCegarLoop]: Abstraction has 3886 states and 10545 transitions. [2021-10-13 22:34:00,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:00,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 10545 transitions. [2021-10-13 22:34:00,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:00,109 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:00,109 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:00,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-10-13 22:34:00,109 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:00,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:00,109 INFO L82 PathProgramCache]: Analyzing trace with hash 496724545, now seen corresponding path program 59 times [2021-10-13 22:34:00,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:00,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801173255] [2021-10-13 22:34:00,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:00,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:00,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:00,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:00,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801173255] [2021-10-13 22:34:00,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801173255] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:00,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:00,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:00,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833320236] [2021-10-13 22:34:00,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:00,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:00,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:00,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:00,667 INFO L87 Difference]: Start difference. First operand 3886 states and 10545 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:03,252 INFO L93 Difference]: Finished difference Result 9543 states and 24683 transitions. [2021-10-13 22:34:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:34:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:03,262 INFO L225 Difference]: With dead ends: 9543 [2021-10-13 22:34:03,262 INFO L226 Difference]: Without dead ends: 9543 [2021-10-13 22:34:03,262 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2187.2ms TimeCoverageRelationStatistics Valid=581, Invalid=1675, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:34:03,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9543 states. [2021-10-13 22:34:03,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9543 to 3880. [2021-10-13 22:34:03,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3878 states have (on average 2.7153171738009285) internal successors, (10530), 3879 states have internal predecessors, (10530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:03,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 10530 transitions. [2021-10-13 22:34:03,320 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 10530 transitions. Word has length 96 [2021-10-13 22:34:03,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:03,320 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 10530 transitions. [2021-10-13 22:34:03,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:03,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 10530 transitions. [2021-10-13 22:34:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:03,324 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:03,324 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:03,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-10-13 22:34:03,324 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash 916191045, now seen corresponding path program 60 times [2021-10-13 22:34:03,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:03,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022546060] [2021-10-13 22:34:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:03,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:03,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:03,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022546060] [2021-10-13 22:34:03,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022546060] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:03,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:03,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:03,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553782207] [2021-10-13 22:34:03,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:03,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:03,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:03,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:03,864 INFO L87 Difference]: Start difference. First operand 3880 states and 10530 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:06,604 INFO L93 Difference]: Finished difference Result 9435 states and 24555 transitions. [2021-10-13 22:34:06,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:06,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:06,616 INFO L225 Difference]: With dead ends: 9435 [2021-10-13 22:34:06,616 INFO L226 Difference]: Without dead ends: 9435 [2021-10-13 22:34:06,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2421.8ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9435 states. [2021-10-13 22:34:06,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9435 to 3880. [2021-10-13 22:34:06,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3880 states, 3878 states have (on average 2.7153171738009285) internal successors, (10530), 3879 states have internal predecessors, (10530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3880 states to 3880 states and 10530 transitions. [2021-10-13 22:34:06,687 INFO L78 Accepts]: Start accepts. Automaton has 3880 states and 10530 transitions. Word has length 96 [2021-10-13 22:34:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:06,687 INFO L470 AbstractCegarLoop]: Abstraction has 3880 states and 10530 transitions. [2021-10-13 22:34:06,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 3880 states and 10530 transitions. [2021-10-13 22:34:06,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:06,691 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:06,691 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] [2021-10-13 22:34:06,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-10-13 22:34:06,692 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:06,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:06,692 INFO L82 PathProgramCache]: Analyzing trace with hash -181736991, now seen corresponding path program 61 times [2021-10-13 22:34:06,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:06,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455919449] [2021-10-13 22:34:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:06,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:07,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:07,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455919449] [2021-10-13 22:34:07,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455919449] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:07,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:07,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:07,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021516434] [2021-10-13 22:34:07,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:07,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:07,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:07,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:07,254 INFO L87 Difference]: Start difference. First operand 3880 states and 10530 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:11,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:11,021 INFO L93 Difference]: Finished difference Result 10511 states and 27398 transitions. [2021-10-13 22:34:11,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:34:11,022 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:11,033 INFO L225 Difference]: With dead ends: 10511 [2021-10-13 22:34:11,033 INFO L226 Difference]: Without dead ends: 10511 [2021-10-13 22:34:11,033 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3227.4ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:34:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10511 states. [2021-10-13 22:34:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10511 to 3844. [2021-10-13 22:34:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3842 states have (on average 2.7126496616345652) internal successors, (10422), 3843 states have internal predecessors, (10422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:11,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 10422 transitions. [2021-10-13 22:34:11,119 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 10422 transitions. Word has length 96 [2021-10-13 22:34:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:11,120 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 10422 transitions. [2021-10-13 22:34:11,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 10422 transitions. [2021-10-13 22:34:11,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:11,123 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:11,123 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] [2021-10-13 22:34:11,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-10-13 22:34:11,123 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:11,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:11,124 INFO L82 PathProgramCache]: Analyzing trace with hash 488592583, now seen corresponding path program 62 times [2021-10-13 22:34:11,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:11,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723032942] [2021-10-13 22:34:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:11,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:11,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:11,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723032942] [2021-10-13 22:34:11,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723032942] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:11,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:11,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:11,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615497120] [2021-10-13 22:34:11,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:11,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:11,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:11,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:11,700 INFO L87 Difference]: Start difference. First operand 3844 states and 10422 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:14,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:14,372 INFO L93 Difference]: Finished difference Result 9364 states and 24280 transitions. [2021-10-13 22:34:14,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:14,375 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:14,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:14,386 INFO L225 Difference]: With dead ends: 9364 [2021-10-13 22:34:14,386 INFO L226 Difference]: Without dead ends: 9364 [2021-10-13 22:34:14,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2309.0ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:14,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9364 states. [2021-10-13 22:34:14,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9364 to 3846. [2021-10-13 22:34:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3846 states, 3844 states have (on average 2.7125390218522374) internal successors, (10427), 3845 states have internal predecessors, (10427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:14,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3846 states to 3846 states and 10427 transitions. [2021-10-13 22:34:14,446 INFO L78 Accepts]: Start accepts. Automaton has 3846 states and 10427 transitions. Word has length 96 [2021-10-13 22:34:14,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:14,446 INFO L470 AbstractCegarLoop]: Abstraction has 3846 states and 10427 transitions. [2021-10-13 22:34:14,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:14,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3846 states and 10427 transitions. [2021-10-13 22:34:14,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:14,450 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:14,450 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:14,450 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-10-13 22:34:14,450 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:14,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:14,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1440206667, now seen corresponding path program 63 times [2021-10-13 22:34:14,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:14,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771946644] [2021-10-13 22:34:14,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:14,451 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:15,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:15,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771946644] [2021-10-13 22:34:15,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771946644] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:15,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:15,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:15,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066302314] [2021-10-13 22:34:15,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:15,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:15,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:15,038 INFO L87 Difference]: Start difference. First operand 3846 states and 10427 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:17,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:17,656 INFO L93 Difference]: Finished difference Result 9242 states and 24028 transitions. [2021-10-13 22:34:17,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:17,656 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:17,666 INFO L225 Difference]: With dead ends: 9242 [2021-10-13 22:34:17,666 INFO L226 Difference]: Without dead ends: 9242 [2021-10-13 22:34:17,666 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2295.2ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:17,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9242 states. [2021-10-13 22:34:17,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9242 to 3844. [2021-10-13 22:34:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3842 states have (on average 2.7126496616345652) internal successors, (10422), 3843 states have internal predecessors, (10422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 10422 transitions. [2021-10-13 22:34:17,727 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 10422 transitions. Word has length 96 [2021-10-13 22:34:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:17,728 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 10422 transitions. [2021-10-13 22:34:17,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 10422 transitions. [2021-10-13 22:34:17,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:17,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:17,732 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:17,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-10-13 22:34:17,732 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:17,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:17,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1169887947, now seen corresponding path program 64 times [2021-10-13 22:34:17,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:17,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318712522] [2021-10-13 22:34:17,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:17,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:18,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:18,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318712522] [2021-10-13 22:34:18,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318712522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:18,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:18,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:18,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186066999] [2021-10-13 22:34:18,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:18,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:18,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:18,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:18,298 INFO L87 Difference]: Start difference. First operand 3844 states and 10422 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:21,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:21,959 INFO L93 Difference]: Finished difference Result 11472 states and 29847 transitions. [2021-10-13 22:34:21,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:34:21,960 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:21,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:21,971 INFO L225 Difference]: With dead ends: 11472 [2021-10-13 22:34:21,971 INFO L226 Difference]: Without dead ends: 11472 [2021-10-13 22:34:21,971 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3231.0ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:34:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11472 states. [2021-10-13 22:34:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11472 to 3856. [2021-10-13 22:34:22,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3854 states have (on average 2.713544369486248) internal successors, (10458), 3855 states have internal predecessors, (10458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:22,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 10458 transitions. [2021-10-13 22:34:22,036 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 10458 transitions. Word has length 96 [2021-10-13 22:34:22,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:22,036 INFO L470 AbstractCegarLoop]: Abstraction has 3856 states and 10458 transitions. [2021-10-13 22:34:22,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:22,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 10458 transitions. [2021-10-13 22:34:22,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:22,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:22,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:22,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-10-13 22:34:22,040 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:22,041 INFO L82 PathProgramCache]: Analyzing trace with hash -352397453, now seen corresponding path program 65 times [2021-10-13 22:34:22,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:22,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730599826] [2021-10-13 22:34:22,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:22,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:22,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:22,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:22,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730599826] [2021-10-13 22:34:22,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730599826] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:22,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:22,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:22,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156638287] [2021-10-13 22:34:22,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:22,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:22,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:22,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:22,573 INFO L87 Difference]: Start difference. First operand 3856 states and 10458 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:25,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:25,374 INFO L93 Difference]: Finished difference Result 10313 states and 26861 transitions. [2021-10-13 22:34:25,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:25,374 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:25,387 INFO L225 Difference]: With dead ends: 10313 [2021-10-13 22:34:25,387 INFO L226 Difference]: Without dead ends: 10313 [2021-10-13 22:34:25,387 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2359.6ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10313 states. [2021-10-13 22:34:25,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10313 to 3832. [2021-10-13 22:34:25,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3832 states, 3830 states have (on average 2.7117493472584857) internal successors, (10386), 3831 states have internal predecessors, (10386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3832 states and 10386 transitions. [2021-10-13 22:34:25,479 INFO L78 Accepts]: Start accepts. Automaton has 3832 states and 10386 transitions. Word has length 96 [2021-10-13 22:34:25,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:25,479 INFO L470 AbstractCegarLoop]: Abstraction has 3832 states and 10386 transitions. [2021-10-13 22:34:25,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand 3832 states and 10386 transitions. [2021-10-13 22:34:25,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:25,482 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:25,483 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] [2021-10-13 22:34:25,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-10-13 22:34:25,483 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:25,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:25,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2104878977, now seen corresponding path program 66 times [2021-10-13 22:34:25,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:25,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390952692] [2021-10-13 22:34:25,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:25,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:26,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:26,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:26,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390952692] [2021-10-13 22:34:26,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390952692] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:26,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:26,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:26,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709970430] [2021-10-13 22:34:26,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:26,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:26,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:26,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:26,032 INFO L87 Difference]: Start difference. First operand 3832 states and 10386 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:28,481 INFO L93 Difference]: Finished difference Result 9421 states and 24409 transitions. [2021-10-13 22:34:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:28,482 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:28,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:28,492 INFO L225 Difference]: With dead ends: 9421 [2021-10-13 22:34:28,493 INFO L226 Difference]: Without dead ends: 9421 [2021-10-13 22:34:28,493 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2167.9ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9421 states. [2021-10-13 22:34:28,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9421 to 3826. [2021-10-13 22:34:28,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3824 states have (on average 2.712081589958159) internal successors, (10371), 3825 states have internal predecessors, (10371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:28,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 10371 transitions. [2021-10-13 22:34:28,558 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 10371 transitions. Word has length 96 [2021-10-13 22:34:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:28,558 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 10371 transitions. [2021-10-13 22:34:28,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:28,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 10371 transitions. [2021-10-13 22:34:28,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:28,561 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:28,561 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] [2021-10-13 22:34:28,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-10-13 22:34:28,561 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:28,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash 176079727, now seen corresponding path program 67 times [2021-10-13 22:34:28,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:28,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124951726] [2021-10-13 22:34:28,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:28,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:28,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:29,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:29,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124951726] [2021-10-13 22:34:29,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124951726] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:29,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:29,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:29,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742979354] [2021-10-13 22:34:29,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:29,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:29,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:29,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:29,113 INFO L87 Difference]: Start difference. First operand 3826 states and 10371 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:31,639 INFO L93 Difference]: Finished difference Result 9568 states and 24720 transitions. [2021-10-13 22:34:31,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:31,639 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:31,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:31,651 INFO L225 Difference]: With dead ends: 9568 [2021-10-13 22:34:31,651 INFO L226 Difference]: Without dead ends: 9568 [2021-10-13 22:34:31,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2190.7ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:31,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9568 states. [2021-10-13 22:34:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9568 to 3824. [2021-10-13 22:34:31,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3824 states, 3822 states have (on average 2.7121925693354263) internal successors, (10366), 3823 states have internal predecessors, (10366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:31,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3824 states to 3824 states and 10366 transitions. [2021-10-13 22:34:31,726 INFO L78 Accepts]: Start accepts. Automaton has 3824 states and 10366 transitions. Word has length 96 [2021-10-13 22:34:31,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:31,726 INFO L470 AbstractCegarLoop]: Abstraction has 3824 states and 10366 transitions. [2021-10-13 22:34:31,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:31,726 INFO L276 IsEmpty]: Start isEmpty. Operand 3824 states and 10366 transitions. [2021-10-13 22:34:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:31,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:31,729 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] [2021-10-13 22:34:31,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-10-13 22:34:31,730 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:31,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1784658561, now seen corresponding path program 68 times [2021-10-13 22:34:31,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:31,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670345807] [2021-10-13 22:34:31,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:31,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:32,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:32,276 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:32,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670345807] [2021-10-13 22:34:32,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670345807] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:32,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:32,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:32,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848304078] [2021-10-13 22:34:32,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:32,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:32,277 INFO L87 Difference]: Start difference. First operand 3824 states and 10366 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:34,936 INFO L93 Difference]: Finished difference Result 9329 states and 24223 transitions. [2021-10-13 22:34:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:34:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:34,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:34,947 INFO L225 Difference]: With dead ends: 9329 [2021-10-13 22:34:34,947 INFO L226 Difference]: Without dead ends: 9329 [2021-10-13 22:34:34,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2324.5ms TimeCoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:34:34,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9329 states. [2021-10-13 22:34:34,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9329 to 3820. [2021-10-13 22:34:35,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3820 states, 3818 states have (on average 2.7124148768989) internal successors, (10356), 3819 states have internal predecessors, (10356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 10356 transitions. [2021-10-13 22:34:35,005 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 10356 transitions. Word has length 96 [2021-10-13 22:34:35,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:35,005 INFO L470 AbstractCegarLoop]: Abstraction has 3820 states and 10356 transitions. [2021-10-13 22:34:35,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:35,006 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 10356 transitions. [2021-10-13 22:34:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:35,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:35,009 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] [2021-10-13 22:34:35,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-10-13 22:34:35,009 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:35,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:35,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1314566499, now seen corresponding path program 69 times [2021-10-13 22:34:35,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:35,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653954516] [2021-10-13 22:34:35,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:35,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:35,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:35,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:35,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653954516] [2021-10-13 22:34:35,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653954516] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:35,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:35,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:35,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618282739] [2021-10-13 22:34:35,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:35,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:35,585 INFO L87 Difference]: Start difference. First operand 3820 states and 10356 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:39,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:39,495 INFO L93 Difference]: Finished difference Result 11224 states and 29134 transitions. [2021-10-13 22:34:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:34:39,495 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:39,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:39,508 INFO L225 Difference]: With dead ends: 11224 [2021-10-13 22:34:39,508 INFO L226 Difference]: Without dead ends: 11224 [2021-10-13 22:34:39,508 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 3395.5ms TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:34:39,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11224 states. [2021-10-13 22:34:39,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11224 to 3856. [2021-10-13 22:34:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3856 states, 3854 states have (on average 2.7151011935651272) internal successors, (10464), 3855 states have internal predecessors, (10464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3856 states to 3856 states and 10464 transitions. [2021-10-13 22:34:39,577 INFO L78 Accepts]: Start accepts. Automaton has 3856 states and 10464 transitions. Word has length 96 [2021-10-13 22:34:39,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:39,577 INFO L470 AbstractCegarLoop]: Abstraction has 3856 states and 10464 transitions. [2021-10-13 22:34:39,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:39,577 INFO L276 IsEmpty]: Start isEmpty. Operand 3856 states and 10464 transitions. [2021-10-13 22:34:39,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:39,581 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:39,581 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] [2021-10-13 22:34:39,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-10-13 22:34:39,581 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:39,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:39,581 INFO L82 PathProgramCache]: Analyzing trace with hash -497076005, now seen corresponding path program 70 times [2021-10-13 22:34:39,581 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:39,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728607664] [2021-10-13 22:34:39,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:39,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:40,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:40,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728607664] [2021-10-13 22:34:40,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728607664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:40,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:40,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:40,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157370034] [2021-10-13 22:34:40,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:40,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:40,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:40,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:40,154 INFO L87 Difference]: Start difference. First operand 3856 states and 10464 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:43,893 INFO L93 Difference]: Finished difference Result 11449 states and 29538 transitions. [2021-10-13 22:34:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:34:43,893 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:43,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:43,907 INFO L225 Difference]: With dead ends: 11449 [2021-10-13 22:34:43,907 INFO L226 Difference]: Without dead ends: 11449 [2021-10-13 22:34:43,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3221.5ms TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:34:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11449 states. [2021-10-13 22:34:43,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11449 to 3844. [2021-10-13 22:34:43,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3844 states, 3842 states have (on average 2.7142113482561165) internal successors, (10428), 3843 states have internal predecessors, (10428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3844 states to 3844 states and 10428 transitions. [2021-10-13 22:34:43,984 INFO L78 Accepts]: Start accepts. Automaton has 3844 states and 10428 transitions. Word has length 96 [2021-10-13 22:34:43,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:43,984 INFO L470 AbstractCegarLoop]: Abstraction has 3844 states and 10428 transitions. [2021-10-13 22:34:43,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3844 states and 10428 transitions. [2021-10-13 22:34:43,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:43,988 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:43,989 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:43,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-10-13 22:34:43,989 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:43,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:43,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1276221727, now seen corresponding path program 71 times [2021-10-13 22:34:43,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:43,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229682146] [2021-10-13 22:34:43,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:43,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:44,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:44,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:44,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229682146] [2021-10-13 22:34:44,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229682146] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:44,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:44,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:44,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226892487] [2021-10-13 22:34:44,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:44,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:44,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:44,541 INFO L87 Difference]: Start difference. First operand 3844 states and 10428 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:47,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:47,308 INFO L93 Difference]: Finished difference Result 9964 states and 25870 transitions. [2021-10-13 22:34:47,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:34:47,308 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:47,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:47,319 INFO L225 Difference]: With dead ends: 9964 [2021-10-13 22:34:47,319 INFO L226 Difference]: Without dead ends: 9964 [2021-10-13 22:34:47,319 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2398.0ms TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:34:47,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9964 states. [2021-10-13 22:34:47,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9964 to 3784. [2021-10-13 22:34:47,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3782 states have (on average 2.7096774193548385) internal successors, (10248), 3783 states have internal predecessors, (10248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 10248 transitions. [2021-10-13 22:34:47,391 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 10248 transitions. Word has length 96 [2021-10-13 22:34:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:47,391 INFO L470 AbstractCegarLoop]: Abstraction has 3784 states and 10248 transitions. [2021-10-13 22:34:47,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 10248 transitions. [2021-10-13 22:34:47,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:47,395 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:47,395 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:47,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-10-13 22:34:47,395 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:47,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:47,395 INFO L82 PathProgramCache]: Analyzing trace with hash 796802603, now seen corresponding path program 72 times [2021-10-13 22:34:47,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:47,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437199767] [2021-10-13 22:34:47,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:47,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:47,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:47,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:47,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:47,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437199767] [2021-10-13 22:34:47,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437199767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:47,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:47,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:47,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849635999] [2021-10-13 22:34:47,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:47,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:47,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:47,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:47,946 INFO L87 Difference]: Start difference. First operand 3784 states and 10248 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:50,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:50,575 INFO L93 Difference]: Finished difference Result 7979 states and 20583 transitions. [2021-10-13 22:34:50,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:34:50,575 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:50,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:50,583 INFO L225 Difference]: With dead ends: 7979 [2021-10-13 22:34:50,583 INFO L226 Difference]: Without dead ends: 7979 [2021-10-13 22:34:50,583 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2238.4ms TimeCoverageRelationStatistics Valid=625, Invalid=1825, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:34:50,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2021-10-13 22:34:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 3752. [2021-10-13 22:34:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 3750 states have (on average 2.708266666666667) internal successors, (10156), 3751 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 10156 transitions. [2021-10-13 22:34:50,634 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 10156 transitions. Word has length 96 [2021-10-13 22:34:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:50,634 INFO L470 AbstractCegarLoop]: Abstraction has 3752 states and 10156 transitions. [2021-10-13 22:34:50,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 10156 transitions. [2021-10-13 22:34:50,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:50,638 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:50,638 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:50,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-10-13 22:34:50,638 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:50,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:50,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1113096275, now seen corresponding path program 73 times [2021-10-13 22:34:50,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:50,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646091659] [2021-10-13 22:34:50,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:50,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:51,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:51,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646091659] [2021-10-13 22:34:51,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646091659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:51,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:51,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:51,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570569600] [2021-10-13 22:34:51,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:51,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:51,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:51,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:51,186 INFO L87 Difference]: Start difference. First operand 3752 states and 10156 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:53,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:53,786 INFO L93 Difference]: Finished difference Result 7998 states and 20596 transitions. [2021-10-13 22:34:53,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:34:53,786 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:53,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:53,796 INFO L225 Difference]: With dead ends: 7998 [2021-10-13 22:34:53,796 INFO L226 Difference]: Without dead ends: 7998 [2021-10-13 22:34:53,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2161.5ms TimeCoverageRelationStatistics Valid=595, Invalid=1757, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:34:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7998 states. [2021-10-13 22:34:53,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7998 to 3754. [2021-10-13 22:34:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3752 states have (on average 2.7081556503198296) internal successors, (10161), 3753 states have internal predecessors, (10161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:53,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 10161 transitions. [2021-10-13 22:34:53,852 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 10161 transitions. Word has length 96 [2021-10-13 22:34:53,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:53,852 INFO L470 AbstractCegarLoop]: Abstraction has 3754 states and 10161 transitions. [2021-10-13 22:34:53,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 10161 transitions. [2021-10-13 22:34:53,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:53,855 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:53,857 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:34:53,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-10-13 22:34:53,857 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:53,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:53,857 INFO L82 PathProgramCache]: Analyzing trace with hash -960369541, now seen corresponding path program 74 times [2021-10-13 22:34:53,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:53,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545347862] [2021-10-13 22:34:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:53,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:54,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:54,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:54,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545347862] [2021-10-13 22:34:54,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545347862] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:54,454 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:54,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:54,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748286186] [2021-10-13 22:34:54,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:54,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:54,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:54,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:54,455 INFO L87 Difference]: Start difference. First operand 3754 states and 10161 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:56,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:56,693 INFO L93 Difference]: Finished difference Result 7789 states and 20153 transitions. [2021-10-13 22:34:56,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:56,694 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:56,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:56,702 INFO L225 Difference]: With dead ends: 7789 [2021-10-13 22:34:56,702 INFO L226 Difference]: Without dead ends: 7789 [2021-10-13 22:34:56,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1993.3ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2021-10-13 22:34:56,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 3760. [2021-10-13 22:34:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 3758 states have (on average 2.707823310271421) internal successors, (10176), 3759 states have internal predecessors, (10176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 10176 transitions. [2021-10-13 22:34:56,755 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 10176 transitions. Word has length 96 [2021-10-13 22:34:56,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:56,756 INFO L470 AbstractCegarLoop]: Abstraction has 3760 states and 10176 transitions. [2021-10-13 22:34:56,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 10176 transitions. [2021-10-13 22:34:56,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:56,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:56,759 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] [2021-10-13 22:34:56,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-10-13 22:34:56,759 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:56,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:56,760 INFO L82 PathProgramCache]: Analyzing trace with hash 191673551, now seen corresponding path program 75 times [2021-10-13 22:34:56,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:56,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047945579] [2021-10-13 22:34:56,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:56,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:34:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:34:57,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:34:57,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047945579] [2021-10-13 22:34:57,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047945579] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:34:57,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:34:57,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:34:57,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332680140] [2021-10-13 22:34:57,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:34:57,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:34:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:34:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:34:57,297 INFO L87 Difference]: Start difference. First operand 3760 states and 10176 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:59,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:34:59,600 INFO L93 Difference]: Finished difference Result 7936 states and 20464 transitions. [2021-10-13 22:34:59,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:34:59,601 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:34:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:34:59,609 INFO L225 Difference]: With dead ends: 7936 [2021-10-13 22:34:59,610 INFO L226 Difference]: Without dead ends: 7936 [2021-10-13 22:34:59,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1976.1ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:34:59,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2021-10-13 22:34:59,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 3758. [2021-10-13 22:34:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3756 states have (on average 2.707933972310969) internal successors, (10171), 3757 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) [2021-10-13 22:34:59,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 10171 transitions. [2021-10-13 22:34:59,664 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 10171 transitions. Word has length 96 [2021-10-13 22:34:59,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:34:59,664 INFO L470 AbstractCegarLoop]: Abstraction has 3758 states and 10171 transitions. [2021-10-13 22:34:59,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:34:59,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 10171 transitions. [2021-10-13 22:34:59,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:34:59,667 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:34:59,667 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] [2021-10-13 22:34:59,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-10-13 22:34:59,667 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:34:59,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:34:59,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1925599287, now seen corresponding path program 76 times [2021-10-13 22:34:59,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:34:59,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850068382] [2021-10-13 22:34:59,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:34:59,668 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:34:59,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:00,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:00,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:00,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850068382] [2021-10-13 22:35:00,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850068382] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:00,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:00,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:00,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163429790] [2021-10-13 22:35:00,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:00,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:00,223 INFO L87 Difference]: Start difference. First operand 3758 states and 10171 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:02,615 INFO L93 Difference]: Finished difference Result 7858 states and 20306 transitions. [2021-10-13 22:35:02,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:35:02,616 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:02,653 INFO L225 Difference]: With dead ends: 7858 [2021-10-13 22:35:02,653 INFO L226 Difference]: Without dead ends: 7858 [2021-10-13 22:35:02,653 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2086.4ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:35:02,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7858 states. [2021-10-13 22:35:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7858 to 3738. [2021-10-13 22:35:02,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3738 states, 3736 states have (on average 2.707441113490364) internal successors, (10115), 3737 states have internal predecessors, (10115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 10115 transitions. [2021-10-13 22:35:02,700 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 10115 transitions. Word has length 96 [2021-10-13 22:35:02,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:02,700 INFO L470 AbstractCegarLoop]: Abstraction has 3738 states and 10115 transitions. [2021-10-13 22:35:02,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 10115 transitions. [2021-10-13 22:35:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:02,704 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:02,704 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:02,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-10-13 22:35:02,704 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:02,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:02,705 INFO L82 PathProgramCache]: Analyzing trace with hash 716041377, now seen corresponding path program 77 times [2021-10-13 22:35:02,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:02,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103348699] [2021-10-13 22:35:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:02,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:03,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:03,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:03,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103348699] [2021-10-13 22:35:03,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103348699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:03,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:03,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:03,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084954151] [2021-10-13 22:35:03,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:03,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:03,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:03,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:03,278 INFO L87 Difference]: Start difference. First operand 3738 states and 10115 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:05,952 INFO L93 Difference]: Finished difference Result 7415 states and 19053 transitions. [2021-10-13 22:35:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:35:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:05,961 INFO L225 Difference]: With dead ends: 7415 [2021-10-13 22:35:05,961 INFO L226 Difference]: Without dead ends: 7415 [2021-10-13 22:35:05,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 2353.4ms TimeCoverageRelationStatistics Valid=625, Invalid=1727, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:35:05,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2021-10-13 22:35:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 3762. [2021-10-13 22:35:06,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 3760 states have (on average 2.709308510638298) internal successors, (10187), 3761 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) [2021-10-13 22:35:06,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 10187 transitions. [2021-10-13 22:35:06,020 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 10187 transitions. Word has length 96 [2021-10-13 22:35:06,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:06,020 INFO L470 AbstractCegarLoop]: Abstraction has 3762 states and 10187 transitions. [2021-10-13 22:35:06,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 10187 transitions. [2021-10-13 22:35:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:06,023 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:06,023 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:06,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-10-13 22:35:06,024 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:06,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:06,024 INFO L82 PathProgramCache]: Analyzing trace with hash -717690529, now seen corresponding path program 78 times [2021-10-13 22:35:06,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:06,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652602473] [2021-10-13 22:35:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:06,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:06,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:06,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652602473] [2021-10-13 22:35:06,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652602473] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:06,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:06,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:06,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157825936] [2021-10-13 22:35:06,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:06,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:06,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:06,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=526, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:06,590 INFO L87 Difference]: Start difference. First operand 3762 states and 10187 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:10,299 INFO L93 Difference]: Finished difference Result 8875 states and 22916 transitions. [2021-10-13 22:35:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:35:10,299 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:10,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:10,308 INFO L225 Difference]: With dead ends: 8875 [2021-10-13 22:35:10,309 INFO L226 Difference]: Without dead ends: 8875 [2021-10-13 22:35:10,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 3246.6ms TimeCoverageRelationStatistics Valid=870, Invalid=2100, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:35:10,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8875 states. [2021-10-13 22:35:10,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8875 to 3786. [2021-10-13 22:35:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3786 states, 3784 states have (on average 2.71115221987315) internal successors, (10259), 3785 states have internal predecessors, (10259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:10,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3786 states to 3786 states and 10259 transitions. [2021-10-13 22:35:10,368 INFO L78 Accepts]: Start accepts. Automaton has 3786 states and 10259 transitions. Word has length 96 [2021-10-13 22:35:10,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:10,368 INFO L470 AbstractCegarLoop]: Abstraction has 3786 states and 10259 transitions. [2021-10-13 22:35:10,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:10,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3786 states and 10259 transitions. [2021-10-13 22:35:10,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:10,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:10,371 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:10,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-10-13 22:35:10,372 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:10,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:10,372 INFO L82 PathProgramCache]: Analyzing trace with hash -401534445, now seen corresponding path program 79 times [2021-10-13 22:35:10,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:10,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112471474] [2021-10-13 22:35:10,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:10,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:10,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:10,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:10,931 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112471474] [2021-10-13 22:35:10,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112471474] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:10,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:10,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:10,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931188402] [2021-10-13 22:35:10,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:10,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:10,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:10,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:10,932 INFO L87 Difference]: Start difference. First operand 3786 states and 10259 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:14,938 INFO L93 Difference]: Finished difference Result 8485 states and 21893 transitions. [2021-10-13 22:35:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:35:14,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:14,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:14,947 INFO L225 Difference]: With dead ends: 8485 [2021-10-13 22:35:14,947 INFO L226 Difference]: Without dead ends: 8485 [2021-10-13 22:35:14,948 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 3512.7ms TimeCoverageRelationStatistics Valid=890, Invalid=2190, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:35:14,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8485 states. [2021-10-13 22:35:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8485 to 3774. [2021-10-13 22:35:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3774 states, 3772 states have (on average 2.7102332979851536) internal successors, (10223), 3773 states have internal predecessors, (10223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:15,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3774 states to 3774 states and 10223 transitions. [2021-10-13 22:35:15,005 INFO L78 Accepts]: Start accepts. Automaton has 3774 states and 10223 transitions. Word has length 96 [2021-10-13 22:35:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:15,005 INFO L470 AbstractCegarLoop]: Abstraction has 3774 states and 10223 transitions. [2021-10-13 22:35:15,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 3774 states and 10223 transitions. [2021-10-13 22:35:15,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:15,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:15,009 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] [2021-10-13 22:35:15,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-10-13 22:35:15,009 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:15,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:15,009 INFO L82 PathProgramCache]: Analyzing trace with hash 825856943, now seen corresponding path program 80 times [2021-10-13 22:35:15,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:15,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670016867] [2021-10-13 22:35:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:15,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:15,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:15,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670016867] [2021-10-13 22:35:15,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670016867] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:15,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:15,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:15,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851032436] [2021-10-13 22:35:15,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:15,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:15,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:15,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:15,586 INFO L87 Difference]: Start difference. First operand 3774 states and 10223 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:19,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:19,423 INFO L93 Difference]: Finished difference Result 9078 states and 23265 transitions. [2021-10-13 22:35:19,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:35:19,423 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:19,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:19,433 INFO L225 Difference]: With dead ends: 9078 [2021-10-13 22:35:19,433 INFO L226 Difference]: Without dead ends: 9078 [2021-10-13 22:35:19,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 3348.7ms TimeCoverageRelationStatistics Valid=873, Invalid=2207, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:35:19,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9078 states. [2021-10-13 22:35:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9078 to 3762. [2021-10-13 22:35:19,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 3760 states have (on average 2.709308510638298) internal successors, (10187), 3761 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) [2021-10-13 22:35:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 10187 transitions. [2021-10-13 22:35:19,509 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 10187 transitions. Word has length 96 [2021-10-13 22:35:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:19,509 INFO L470 AbstractCegarLoop]: Abstraction has 3762 states and 10187 transitions. [2021-10-13 22:35:19,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 10187 transitions. [2021-10-13 22:35:19,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:19,513 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:19,513 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:19,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-10-13 22:35:19,513 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:19,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash 46711221, now seen corresponding path program 81 times [2021-10-13 22:35:19,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:19,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400302470] [2021-10-13 22:35:19,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:19,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:20,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:20,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:20,064 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400302470] [2021-10-13 22:35:20,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400302470] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:20,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:20,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:20,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395250507] [2021-10-13 22:35:20,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:20,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:20,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:20,065 INFO L87 Difference]: Start difference. First operand 3762 states and 10187 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:23,698 INFO L93 Difference]: Finished difference Result 9109 states and 23338 transitions. [2021-10-13 22:35:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:35:23,698 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:23,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:23,709 INFO L225 Difference]: With dead ends: 9109 [2021-10-13 22:35:23,709 INFO L226 Difference]: Without dead ends: 9109 [2021-10-13 22:35:23,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 3100.9ms TimeCoverageRelationStatistics Valid=825, Invalid=2145, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:35:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9109 states. [2021-10-13 22:35:23,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9109 to 3726. [2021-10-13 22:35:23,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3724 states have (on average 2.706498388829216) internal successors, (10079), 3725 states have internal predecessors, (10079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 10079 transitions. [2021-10-13 22:35:23,794 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 10079 transitions. Word has length 96 [2021-10-13 22:35:23,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:23,795 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 10079 transitions. [2021-10-13 22:35:23,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:23,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 10079 transitions. [2021-10-13 22:35:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:23,798 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:23,799 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:23,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-10-13 22:35:23,799 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:23,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:23,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1407854829, now seen corresponding path program 82 times [2021-10-13 22:35:23,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:23,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269689142] [2021-10-13 22:35:23,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:23,799 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:24,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:24,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:24,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269689142] [2021-10-13 22:35:24,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269689142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:24,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:24,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:24,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103987265] [2021-10-13 22:35:24,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:24,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:24,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:24,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:24,345 INFO L87 Difference]: Start difference. First operand 3726 states and 10079 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:26,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:26,938 INFO L93 Difference]: Finished difference Result 7662 states and 19693 transitions. [2021-10-13 22:35:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:35:26,939 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:26,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:26,947 INFO L225 Difference]: With dead ends: 7662 [2021-10-13 22:35:26,947 INFO L226 Difference]: Without dead ends: 7662 [2021-10-13 22:35:26,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2239.4ms TimeCoverageRelationStatistics Valid=610, Invalid=1742, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:35:26,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7662 states. [2021-10-13 22:35:26,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7662 to 3724. [2021-10-13 22:35:26,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3724 states, 3722 states have (on average 2.706609349811929) internal successors, (10074), 3723 states have internal predecessors, (10074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:27,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3724 states to 3724 states and 10074 transitions. [2021-10-13 22:35:27,003 INFO L78 Accepts]: Start accepts. Automaton has 3724 states and 10074 transitions. Word has length 96 [2021-10-13 22:35:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:27,003 INFO L470 AbstractCegarLoop]: Abstraction has 3724 states and 10074 transitions. [2021-10-13 22:35:27,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 3724 states and 10074 transitions. [2021-10-13 22:35:27,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:27,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:27,008 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:27,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-10-13 22:35:27,008 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:27,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:27,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1255128095, now seen corresponding path program 83 times [2021-10-13 22:35:27,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:27,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398775160] [2021-10-13 22:35:27,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:27,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:27,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:27,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:27,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398775160] [2021-10-13 22:35:27,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398775160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:27,581 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:27,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:27,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096491751] [2021-10-13 22:35:27,581 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:27,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:27,582 INFO L87 Difference]: Start difference. First operand 3724 states and 10074 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:30,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:30,065 INFO L93 Difference]: Finished difference Result 7668 states and 19715 transitions. [2021-10-13 22:35:30,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:30,065 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:30,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:30,093 INFO L225 Difference]: With dead ends: 7668 [2021-10-13 22:35:30,094 INFO L226 Difference]: Without dead ends: 7668 [2021-10-13 22:35:30,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2102.3ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:30,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7668 states. [2021-10-13 22:35:30,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7668 to 3730. [2021-10-13 22:35:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3728 states have (on average 2.706276824034335) internal successors, (10089), 3729 states have internal predecessors, (10089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:30,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 10089 transitions. [2021-10-13 22:35:30,148 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 10089 transitions. Word has length 96 [2021-10-13 22:35:30,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:30,148 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 10089 transitions. [2021-10-13 22:35:30,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 10089 transitions. [2021-10-13 22:35:30,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:30,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:30,152 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] [2021-10-13 22:35:30,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-10-13 22:35:30,152 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:30,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:30,153 INFO L82 PathProgramCache]: Analyzing trace with hash -103085003, now seen corresponding path program 84 times [2021-10-13 22:35:30,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:30,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743329891] [2021-10-13 22:35:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:30,153 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:30,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:30,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:30,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743329891] [2021-10-13 22:35:30,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743329891] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:30,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:30,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:30,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758895911] [2021-10-13 22:35:30,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:30,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:30,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:30,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:30,683 INFO L87 Difference]: Start difference. First operand 3730 states and 10089 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:33,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:33,057 INFO L93 Difference]: Finished difference Result 7815 states and 20026 transitions. [2021-10-13 22:35:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:33,057 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:33,066 INFO L225 Difference]: With dead ends: 7815 [2021-10-13 22:35:33,066 INFO L226 Difference]: Without dead ends: 7815 [2021-10-13 22:35:33,066 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2061.7ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7815 states. [2021-10-13 22:35:33,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7815 to 3728. [2021-10-13 22:35:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3728 states, 3726 states have (on average 2.706387546967257) internal successors, (10084), 3727 states have internal predecessors, (10084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:33,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3728 states to 3728 states and 10084 transitions. [2021-10-13 22:35:33,124 INFO L78 Accepts]: Start accepts. Automaton has 3728 states and 10084 transitions. Word has length 96 [2021-10-13 22:35:33,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:33,124 INFO L470 AbstractCegarLoop]: Abstraction has 3728 states and 10084 transitions. [2021-10-13 22:35:33,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:33,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3728 states and 10084 transitions. [2021-10-13 22:35:33,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:33,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:33,127 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] [2021-10-13 22:35:33,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-10-13 22:35:33,127 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:33,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:33,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1630840733, now seen corresponding path program 85 times [2021-10-13 22:35:33,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:33,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314853092] [2021-10-13 22:35:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:33,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:33,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:33,673 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:33,673 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314853092] [2021-10-13 22:35:33,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314853092] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:33,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:33,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:33,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343677535] [2021-10-13 22:35:33,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:33,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:33,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:33,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:33,674 INFO L87 Difference]: Start difference. First operand 3728 states and 10084 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:36,185 INFO L93 Difference]: Finished difference Result 7737 states and 19868 transitions. [2021-10-13 22:35:36,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:35:36,185 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:36,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:36,193 INFO L225 Difference]: With dead ends: 7737 [2021-10-13 22:35:36,193 INFO L226 Difference]: Without dead ends: 7737 [2021-10-13 22:35:36,193 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2186.5ms TimeCoverageRelationStatistics Valid=581, Invalid=1675, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:35:36,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7737 states. [2021-10-13 22:35:36,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7737 to 3722. [2021-10-13 22:35:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3722 states, 3720 states have (on average 2.7067204301075267) internal successors, (10069), 3721 states have internal predecessors, (10069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:36,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3722 states to 3722 states and 10069 transitions. [2021-10-13 22:35:36,243 INFO L78 Accepts]: Start accepts. Automaton has 3722 states and 10069 transitions. Word has length 96 [2021-10-13 22:35:36,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:36,243 INFO L470 AbstractCegarLoop]: Abstraction has 3722 states and 10069 transitions. [2021-10-13 22:35:36,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:36,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3722 states and 10069 transitions. [2021-10-13 22:35:36,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:36,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:36,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:36,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-10-13 22:35:36,247 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:36,247 INFO L82 PathProgramCache]: Analyzing trace with hash 2050307233, now seen corresponding path program 86 times [2021-10-13 22:35:36,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:36,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343346490] [2021-10-13 22:35:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:36,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:36,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:36,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:36,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343346490] [2021-10-13 22:35:36,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343346490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:36,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:36,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:36,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412383537] [2021-10-13 22:35:36,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:36,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:36,797 INFO L87 Difference]: Start difference. First operand 3722 states and 10069 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:39,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:39,522 INFO L93 Difference]: Finished difference Result 9391 states and 24327 transitions. [2021-10-13 22:35:39,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:39,522 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:39,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:39,533 INFO L225 Difference]: With dead ends: 9391 [2021-10-13 22:35:39,533 INFO L226 Difference]: Without dead ends: 9391 [2021-10-13 22:35:39,534 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2392.6ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:39,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9391 states. [2021-10-13 22:35:39,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9391 to 3794. [2021-10-13 22:35:39,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 3792 states have (on average 2.712289029535865) internal successors, (10285), 3793 states have internal predecessors, (10285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:39,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 10285 transitions. [2021-10-13 22:35:39,600 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 10285 transitions. Word has length 96 [2021-10-13 22:35:39,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:39,601 INFO L470 AbstractCegarLoop]: Abstraction has 3794 states and 10285 transitions. [2021-10-13 22:35:39,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:39,601 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 10285 transitions. [2021-10-13 22:35:39,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:39,604 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:39,604 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:39,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-10-13 22:35:39,605 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:39,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:39,605 INFO L82 PathProgramCache]: Analyzing trace with hash 952379197, now seen corresponding path program 87 times [2021-10-13 22:35:39,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:39,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401049064] [2021-10-13 22:35:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:39,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:40,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:40,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:40,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401049064] [2021-10-13 22:35:40,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401049064] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:40,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:40,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:40,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444040998] [2021-10-13 22:35:40,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:40,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:40,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:40,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:40,179 INFO L87 Difference]: Start difference. First operand 3794 states and 10285 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:43,969 INFO L93 Difference]: Finished difference Result 10467 states and 27170 transitions. [2021-10-13 22:35:43,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:35:43,969 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:43,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:43,980 INFO L225 Difference]: With dead ends: 10467 [2021-10-13 22:35:43,980 INFO L226 Difference]: Without dead ends: 10467 [2021-10-13 22:35:43,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3347.5ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:35:43,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10467 states. [2021-10-13 22:35:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10467 to 3758. [2021-10-13 22:35:44,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3756 states have (on average 2.709531416400426) internal successors, (10177), 3757 states have internal predecessors, (10177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:44,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 10177 transitions. [2021-10-13 22:35:44,072 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 10177 transitions. Word has length 96 [2021-10-13 22:35:44,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:44,072 INFO L470 AbstractCegarLoop]: Abstraction has 3758 states and 10177 transitions. [2021-10-13 22:35:44,073 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:44,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 10177 transitions. [2021-10-13 22:35:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:44,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:44,076 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:44,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-10-13 22:35:44,076 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:44,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1622708771, now seen corresponding path program 88 times [2021-10-13 22:35:44,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:44,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245777592] [2021-10-13 22:35:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:44,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:44,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:44,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:44,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:44,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245777592] [2021-10-13 22:35:44,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245777592] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:44,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:44,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:44,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066217187] [2021-10-13 22:35:44,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:44,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:44,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:44,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:44,608 INFO L87 Difference]: Start difference. First operand 3758 states and 10177 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:47,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:47,334 INFO L93 Difference]: Finished difference Result 9320 states and 24052 transitions. [2021-10-13 22:35:47,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:47,334 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:47,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:47,344 INFO L225 Difference]: With dead ends: 9320 [2021-10-13 22:35:47,344 INFO L226 Difference]: Without dead ends: 9320 [2021-10-13 22:35:47,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2282.6ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9320 states. [2021-10-13 22:35:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9320 to 3760. [2021-10-13 22:35:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 3758 states have (on average 2.709419904204364) internal successors, (10182), 3759 states have internal predecessors, (10182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:47,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 10182 transitions. [2021-10-13 22:35:47,404 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 10182 transitions. Word has length 96 [2021-10-13 22:35:47,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:47,405 INFO L470 AbstractCegarLoop]: Abstraction has 3760 states and 10182 transitions. [2021-10-13 22:35:47,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 10182 transitions. [2021-10-13 22:35:47,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:47,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:47,408 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:47,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-10-13 22:35:47,408 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:47,408 INFO L82 PathProgramCache]: Analyzing trace with hash -306090479, now seen corresponding path program 89 times [2021-10-13 22:35:47,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:47,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433450746] [2021-10-13 22:35:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:47,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:47,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:47,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:47,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433450746] [2021-10-13 22:35:47,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433450746] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:47,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:47,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:47,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188916815] [2021-10-13 22:35:47,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:47,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:47,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:47,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:47,963 INFO L87 Difference]: Start difference. First operand 3760 states and 10182 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:50,590 INFO L93 Difference]: Finished difference Result 9198 states and 23800 transitions. [2021-10-13 22:35:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:50,590 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:50,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:50,599 INFO L225 Difference]: With dead ends: 9198 [2021-10-13 22:35:50,599 INFO L226 Difference]: Without dead ends: 9198 [2021-10-13 22:35:50,599 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2285.6ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9198 states. [2021-10-13 22:35:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9198 to 3758. [2021-10-13 22:35:50,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3756 states have (on average 2.709531416400426) internal successors, (10177), 3757 states have internal predecessors, (10177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:50,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 10177 transitions. [2021-10-13 22:35:50,654 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 10177 transitions. Word has length 96 [2021-10-13 22:35:50,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:50,654 INFO L470 AbstractCegarLoop]: Abstraction has 3758 states and 10177 transitions. [2021-10-13 22:35:50,654 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:50,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 10177 transitions. [2021-10-13 22:35:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:50,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:50,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:50,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-10-13 22:35:50,657 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:50,658 INFO L82 PathProgramCache]: Analyzing trace with hash -35771759, now seen corresponding path program 90 times [2021-10-13 22:35:50,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:50,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166325853] [2021-10-13 22:35:50,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:50,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:51,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:51,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:51,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166325853] [2021-10-13 22:35:51,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166325853] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:51,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:51,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:51,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637024122] [2021-10-13 22:35:51,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:51,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:51,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:51,239 INFO L87 Difference]: Start difference. First operand 3758 states and 10177 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:54,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:54,955 INFO L93 Difference]: Finished difference Result 11428 states and 29619 transitions. [2021-10-13 22:35:54,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:35:54,955 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:54,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:54,966 INFO L225 Difference]: With dead ends: 11428 [2021-10-13 22:35:54,967 INFO L226 Difference]: Without dead ends: 11428 [2021-10-13 22:35:54,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3206.2ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:35:54,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11428 states. [2021-10-13 22:35:55,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11428 to 3770. [2021-10-13 22:35:55,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3768 states have (on average 2.710456475583864) internal successors, (10213), 3769 states have internal predecessors, (10213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 10213 transitions. [2021-10-13 22:35:55,032 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 10213 transitions. Word has length 96 [2021-10-13 22:35:55,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:55,032 INFO L470 AbstractCegarLoop]: Abstraction has 3770 states and 10213 transitions. [2021-10-13 22:35:55,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:55,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 10213 transitions. [2021-10-13 22:35:55,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:55,036 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:55,036 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] [2021-10-13 22:35:55,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-10-13 22:35:55,036 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:55,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:55,036 INFO L82 PathProgramCache]: Analyzing trace with hash 781718735, now seen corresponding path program 91 times [2021-10-13 22:35:55,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:55,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255216397] [2021-10-13 22:35:55,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:55,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:55,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:55,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255216397] [2021-10-13 22:35:55,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255216397] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:55,579 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:55,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:55,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2754899] [2021-10-13 22:35:55,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:55,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:55,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:55,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:55,587 INFO L87 Difference]: Start difference. First operand 3770 states and 10213 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:58,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:35:58,331 INFO L93 Difference]: Finished difference Result 10269 states and 26633 transitions. [2021-10-13 22:35:58,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:35:58,331 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:35:58,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:35:58,343 INFO L225 Difference]: With dead ends: 10269 [2021-10-13 22:35:58,343 INFO L226 Difference]: Without dead ends: 10269 [2021-10-13 22:35:58,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2407.9ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:35:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10269 states. [2021-10-13 22:35:58,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10269 to 3746. [2021-10-13 22:35:58,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3744 states have (on average 2.708600427350427) internal successors, (10141), 3745 states have internal predecessors, (10141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 10141 transitions. [2021-10-13 22:35:58,424 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 10141 transitions. Word has length 96 [2021-10-13 22:35:58,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:35:58,424 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 10141 transitions. [2021-10-13 22:35:58,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:35:58,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 10141 transitions. [2021-10-13 22:35:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:35:58,428 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:35:58,428 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:35:58,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-10-13 22:35:58,428 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:35:58,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:35:58,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1055972131, now seen corresponding path program 92 times [2021-10-13 22:35:58,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:35:58,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842982820] [2021-10-13 22:35:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:35:58,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:35:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:35:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:35:58,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:35:58,994 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842982820] [2021-10-13 22:35:58,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842982820] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:35:58,994 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:35:58,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:35:58,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579824920] [2021-10-13 22:35:58,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:35:58,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:35:58,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:35:58,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:35:58,995 INFO L87 Difference]: Start difference. First operand 3746 states and 10141 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:01,589 INFO L93 Difference]: Finished difference Result 9377 states and 24181 transitions. [2021-10-13 22:36:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:01,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:01,600 INFO L225 Difference]: With dead ends: 9377 [2021-10-13 22:36:01,600 INFO L226 Difference]: Without dead ends: 9377 [2021-10-13 22:36:01,600 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2257.8ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:01,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2021-10-13 22:36:01,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 3752. [2021-10-13 22:36:01,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3752 states, 3750 states have (on average 2.708266666666667) internal successors, (10156), 3751 states have internal predecessors, (10156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3752 states to 3752 states and 10156 transitions. [2021-10-13 22:36:01,667 INFO L78 Accepts]: Start accepts. Automaton has 3752 states and 10156 transitions. Word has length 96 [2021-10-13 22:36:01,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:01,667 INFO L470 AbstractCegarLoop]: Abstraction has 3752 states and 10156 transitions. [2021-10-13 22:36:01,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3752 states and 10156 transitions. [2021-10-13 22:36:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:01,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:01,671 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:01,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-10-13 22:36:01,671 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:01,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:01,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1310195915, now seen corresponding path program 93 times [2021-10-13 22:36:01,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:01,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789356192] [2021-10-13 22:36:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:01,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:02,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:02,225 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789356192] [2021-10-13 22:36:02,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789356192] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:02,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:02,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:02,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978405249] [2021-10-13 22:36:02,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:02,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:02,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:02,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:02,225 INFO L87 Difference]: Start difference. First operand 3752 states and 10156 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:04,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:04,872 INFO L93 Difference]: Finished difference Result 9524 states and 24492 transitions. [2021-10-13 22:36:04,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:04,872 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:04,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:04,881 INFO L225 Difference]: With dead ends: 9524 [2021-10-13 22:36:04,882 INFO L226 Difference]: Without dead ends: 9524 [2021-10-13 22:36:04,882 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2188.7ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9524 states. [2021-10-13 22:36:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9524 to 3750. [2021-10-13 22:36:04,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3750 states, 3748 states have (on average 2.70837780149413) internal successors, (10151), 3749 states have internal predecessors, (10151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3750 states to 3750 states and 10151 transitions. [2021-10-13 22:36:04,938 INFO L78 Accepts]: Start accepts. Automaton has 3750 states and 10151 transitions. Word has length 96 [2021-10-13 22:36:04,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:04,938 INFO L470 AbstractCegarLoop]: Abstraction has 3750 states and 10151 transitions. [2021-10-13 22:36:04,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:04,939 INFO L276 IsEmpty]: Start isEmpty. Operand 3750 states and 10151 transitions. [2021-10-13 22:36:04,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:04,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:04,942 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:04,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-10-13 22:36:04,943 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1376192547, now seen corresponding path program 94 times [2021-10-13 22:36:04,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:04,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500670977] [2021-10-13 22:36:04,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:04,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:05,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:05,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:05,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500670977] [2021-10-13 22:36:05,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500670977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:05,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:05,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:05,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876326304] [2021-10-13 22:36:05,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:05,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:05,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:05,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:05,485 INFO L87 Difference]: Start difference. First operand 3750 states and 10151 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:08,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:08,129 INFO L93 Difference]: Finished difference Result 9285 states and 23995 transitions. [2021-10-13 22:36:08,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:08,140 INFO L225 Difference]: With dead ends: 9285 [2021-10-13 22:36:08,140 INFO L226 Difference]: Without dead ends: 9285 [2021-10-13 22:36:08,140 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2278.7ms TimeCoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9285 states. [2021-10-13 22:36:08,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9285 to 3746. [2021-10-13 22:36:08,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3746 states, 3744 states have (on average 2.708600427350427) internal successors, (10141), 3745 states have internal predecessors, (10141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3746 states to 3746 states and 10141 transitions. [2021-10-13 22:36:08,212 INFO L78 Accepts]: Start accepts. Automaton has 3746 states and 10141 transitions. Word has length 96 [2021-10-13 22:36:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:08,212 INFO L470 AbstractCegarLoop]: Abstraction has 3746 states and 10141 transitions. [2021-10-13 22:36:08,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:08,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3746 states and 10141 transitions. [2021-10-13 22:36:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:08,216 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:08,216 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:08,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-10-13 22:36:08,216 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:08,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:08,217 INFO L82 PathProgramCache]: Analyzing trace with hash -180450311, now seen corresponding path program 95 times [2021-10-13 22:36:08,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:08,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93635995] [2021-10-13 22:36:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:08,217 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:08,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:08,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:08,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93635995] [2021-10-13 22:36:08,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93635995] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:08,787 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:08,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:08,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153596401] [2021-10-13 22:36:08,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:08,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:08,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:08,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:08,788 INFO L87 Difference]: Start difference. First operand 3746 states and 10141 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:12,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:12,756 INFO L93 Difference]: Finished difference Result 11180 states and 28906 transitions. [2021-10-13 22:36:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:36:12,756 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:12,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:12,770 INFO L225 Difference]: With dead ends: 11180 [2021-10-13 22:36:12,770 INFO L226 Difference]: Without dead ends: 11180 [2021-10-13 22:36:12,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 3408.2ms TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:36:12,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11180 states. [2021-10-13 22:36:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11180 to 3782. [2021-10-13 22:36:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3780 states have (on average 2.711375661375661) internal successors, (10249), 3781 states have internal predecessors, (10249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 10249 transitions. [2021-10-13 22:36:12,856 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 10249 transitions. Word has length 96 [2021-10-13 22:36:12,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:12,856 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 10249 transitions. [2021-10-13 22:36:12,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:12,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 10249 transitions. [2021-10-13 22:36:12,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:12,860 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:12,860 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] [2021-10-13 22:36:12,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-10-13 22:36:12,860 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:12,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:12,861 INFO L82 PathProgramCache]: Analyzing trace with hash 637040183, now seen corresponding path program 96 times [2021-10-13 22:36:12,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:12,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491733304] [2021-10-13 22:36:12,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:12,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:13,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:13,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491733304] [2021-10-13 22:36:13,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491733304] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:13,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:13,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:13,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234369216] [2021-10-13 22:36:13,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:13,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:13,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:13,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:13,405 INFO L87 Difference]: Start difference. First operand 3782 states and 10249 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:17,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:17,079 INFO L93 Difference]: Finished difference Result 11405 states and 29310 transitions. [2021-10-13 22:36:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:36:17,079 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:17,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:17,092 INFO L225 Difference]: With dead ends: 11405 [2021-10-13 22:36:17,092 INFO L226 Difference]: Without dead ends: 11405 [2021-10-13 22:36:17,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3242.9ms TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:36:17,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11405 states. [2021-10-13 22:36:17,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11405 to 3770. [2021-10-13 22:36:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3770 states, 3768 states have (on average 2.710456475583864) internal successors, (10213), 3769 states have internal predecessors, (10213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3770 states to 3770 states and 10213 transitions. [2021-10-13 22:36:17,175 INFO L78 Accepts]: Start accepts. Automaton has 3770 states and 10213 transitions. Word has length 96 [2021-10-13 22:36:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:17,175 INFO L470 AbstractCegarLoop]: Abstraction has 3770 states and 10213 transitions. [2021-10-13 22:36:17,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3770 states and 10213 transitions. [2021-10-13 22:36:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:17,179 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:17,179 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:17,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-10-13 22:36:17,179 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:17,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:17,179 INFO L82 PathProgramCache]: Analyzing trace with hash -142105539, now seen corresponding path program 97 times [2021-10-13 22:36:17,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:17,179 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299115495] [2021-10-13 22:36:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:17,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:17,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:17,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299115495] [2021-10-13 22:36:17,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299115495] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:17,712 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:17,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:17,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84871468] [2021-10-13 22:36:17,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:17,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:17,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:17,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:17,712 INFO L87 Difference]: Start difference. First operand 3770 states and 10213 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:20,702 INFO L93 Difference]: Finished difference Result 9920 states and 25642 transitions. [2021-10-13 22:36:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:20,713 INFO L225 Difference]: With dead ends: 9920 [2021-10-13 22:36:20,713 INFO L226 Difference]: Without dead ends: 9920 [2021-10-13 22:36:20,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2425.2ms TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:20,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9920 states. [2021-10-13 22:36:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9920 to 3710. [2021-10-13 22:36:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3710 states, 3708 states have (on average 2.7057713052858685) internal successors, (10033), 3709 states have internal predecessors, (10033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 10033 transitions. [2021-10-13 22:36:20,779 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 10033 transitions. Word has length 96 [2021-10-13 22:36:20,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:20,780 INFO L470 AbstractCegarLoop]: Abstraction has 3710 states and 10033 transitions. [2021-10-13 22:36:20,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:20,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 10033 transitions. [2021-10-13 22:36:20,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:20,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:20,784 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:20,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-10-13 22:36:20,784 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:20,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:20,784 INFO L82 PathProgramCache]: Analyzing trace with hash 879567369, now seen corresponding path program 98 times [2021-10-13 22:36:20,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:20,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742587752] [2021-10-13 22:36:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:20,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:21,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:21,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:21,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742587752] [2021-10-13 22:36:21,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742587752] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:21,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:21,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:21,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963718885] [2021-10-13 22:36:21,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:21,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:21,357 INFO L87 Difference]: Start difference. First operand 3710 states and 10033 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:23,835 INFO L93 Difference]: Finished difference Result 6423 states and 16450 transitions. [2021-10-13 22:36:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:36:23,835 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:23,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:23,842 INFO L225 Difference]: With dead ends: 6423 [2021-10-13 22:36:23,842 INFO L226 Difference]: Without dead ends: 6423 [2021-10-13 22:36:23,843 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 2185.4ms TimeCoverageRelationStatistics Valid=595, Invalid=1757, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:36:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6423 states. [2021-10-13 22:36:23,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6423 to 3756. [2021-10-13 22:36:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3754 states have (on average 2.702184336707512) internal successors, (10144), 3755 states have internal predecessors, (10144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:23,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 10144 transitions. [2021-10-13 22:36:23,890 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 10144 transitions. Word has length 96 [2021-10-13 22:36:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:23,890 INFO L470 AbstractCegarLoop]: Abstraction has 3756 states and 10144 transitions. [2021-10-13 22:36:23,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:23,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 10144 transitions. [2021-10-13 22:36:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:23,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:23,893 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] [2021-10-13 22:36:23,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-10-13 22:36:23,893 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:23,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:23,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1032294103, now seen corresponding path program 99 times [2021-10-13 22:36:23,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:23,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400301410] [2021-10-13 22:36:23,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:23,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:24,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:24,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:24,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400301410] [2021-10-13 22:36:24,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400301410] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:24,451 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:24,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:24,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790557675] [2021-10-13 22:36:24,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:24,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:24,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:24,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:24,451 INFO L87 Difference]: Start difference. First operand 3756 states and 10144 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:26,787 INFO L93 Difference]: Finished difference Result 6758 states and 17165 transitions. [2021-10-13 22:36:26,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:26,788 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:26,796 INFO L225 Difference]: With dead ends: 6758 [2021-10-13 22:36:26,796 INFO L226 Difference]: Without dead ends: 6758 [2021-10-13 22:36:26,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2010.3ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:26,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6758 states. [2021-10-13 22:36:26,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6758 to 3762. [2021-10-13 22:36:26,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 3760 states have (on average 2.7018617021276596) internal successors, (10159), 3761 states have internal predecessors, (10159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 10159 transitions. [2021-10-13 22:36:26,853 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 10159 transitions. Word has length 96 [2021-10-13 22:36:26,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:26,853 INFO L470 AbstractCegarLoop]: Abstraction has 3762 states and 10159 transitions. [2021-10-13 22:36:26,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:26,853 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 10159 transitions. [2021-10-13 22:36:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:26,857 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:26,857 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:26,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-10-13 22:36:26,857 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:26,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash -2110630101, now seen corresponding path program 100 times [2021-10-13 22:36:26,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:26,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608193533] [2021-10-13 22:36:26,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:26,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:26,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:27,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:27,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:27,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608193533] [2021-10-13 22:36:27,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608193533] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:27,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:27,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:27,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682811880] [2021-10-13 22:36:27,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:27,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:27,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:27,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:27,411 INFO L87 Difference]: Start difference. First operand 3762 states and 10159 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:29,730 INFO L93 Difference]: Finished difference Result 6905 states and 17476 transitions. [2021-10-13 22:36:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:29,730 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:29,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:29,737 INFO L225 Difference]: With dead ends: 6905 [2021-10-13 22:36:29,737 INFO L226 Difference]: Without dead ends: 6905 [2021-10-13 22:36:29,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1990.8ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6905 states. [2021-10-13 22:36:29,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6905 to 3760. [2021-10-13 22:36:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 3758 states have (on average 2.7019691325172963) internal successors, (10154), 3759 states have internal predecessors, (10154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 10154 transitions. [2021-10-13 22:36:29,786 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 10154 transitions. Word has length 96 [2021-10-13 22:36:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:29,786 INFO L470 AbstractCegarLoop]: Abstraction has 3760 states and 10154 transitions. [2021-10-13 22:36:29,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 10154 transitions. [2021-10-13 22:36:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:29,790 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:29,790 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:29,790 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-10-13 22:36:29,790 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:29,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:29,790 INFO L82 PathProgramCache]: Analyzing trace with hash -376704365, now seen corresponding path program 101 times [2021-10-13 22:36:29,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:29,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312600840] [2021-10-13 22:36:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:29,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:30,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:30,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312600840] [2021-10-13 22:36:30,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312600840] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:30,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:30,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:30,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345061707] [2021-10-13 22:36:30,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:30,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:30,343 INFO L87 Difference]: Start difference. First operand 3760 states and 10154 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:32,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:32,757 INFO L93 Difference]: Finished difference Result 6827 states and 17318 transitions. [2021-10-13 22:36:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:32,757 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:32,765 INFO L225 Difference]: With dead ends: 6827 [2021-10-13 22:36:32,765 INFO L226 Difference]: Without dead ends: 6827 [2021-10-13 22:36:32,765 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2134.0ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:32,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2021-10-13 22:36:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 3754. [2021-10-13 22:36:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3752 states have (on average 2.7022921108742004) internal successors, (10139), 3753 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:32,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 10139 transitions. [2021-10-13 22:36:32,817 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 10139 transitions. Word has length 96 [2021-10-13 22:36:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:32,817 INFO L470 AbstractCegarLoop]: Abstraction has 3754 states and 10139 transitions. [2021-10-13 22:36:32,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 10139 transitions. [2021-10-13 22:36:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:32,820 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:32,820 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:32,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-10-13 22:36:32,820 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:32,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1480447503, now seen corresponding path program 102 times [2021-10-13 22:36:32,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:32,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017655511] [2021-10-13 22:36:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:32,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:33,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:33,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017655511] [2021-10-13 22:36:33,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017655511] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:33,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:33,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:33,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460619099] [2021-10-13 22:36:33,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:33,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:33,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:33,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:33,428 INFO L87 Difference]: Start difference. First operand 3754 states and 10139 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:35,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:35,894 INFO L93 Difference]: Finished difference Result 6489 states and 16614 transitions. [2021-10-13 22:36:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:35,901 INFO L225 Difference]: With dead ends: 6489 [2021-10-13 22:36:35,901 INFO L226 Difference]: Without dead ends: 6489 [2021-10-13 22:36:35,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2215.4ms TimeCoverageRelationStatistics Valid=564, Invalid=1692, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:35,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6489 states. [2021-10-13 22:36:35,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6489 to 3778. [2021-10-13 22:36:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:35,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:36:35,951 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:36:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:35,951 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:36:35,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:36:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:35,954 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:35,954 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:35,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-10-13 22:36:35,954 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:35,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:35,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1718611777, now seen corresponding path program 103 times [2021-10-13 22:36:35,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:35,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456835130] [2021-10-13 22:36:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:35,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:36,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:36,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:36,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456835130] [2021-10-13 22:36:36,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456835130] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:36,510 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:36,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:36,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024495614] [2021-10-13 22:36:36,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:36,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:36,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:36,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:36,511 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:38,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:38,901 INFO L93 Difference]: Finished difference Result 6873 states and 17412 transitions. [2021-10-13 22:36:38,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:38,902 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:38,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:38,910 INFO L225 Difference]: With dead ends: 6873 [2021-10-13 22:36:38,910 INFO L226 Difference]: Without dead ends: 6873 [2021-10-13 22:36:38,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2017.3ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2021-10-13 22:36:38,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 3780. [2021-10-13 22:36:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3780 states, 3778 states have (on average 2.7008999470619375) internal successors, (10204), 3779 states have internal predecessors, (10204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:38,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3780 states to 3780 states and 10204 transitions. [2021-10-13 22:36:38,974 INFO L78 Accepts]: Start accepts. Automaton has 3780 states and 10204 transitions. Word has length 96 [2021-10-13 22:36:38,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:38,974 INFO L470 AbstractCegarLoop]: Abstraction has 3780 states and 10204 transitions. [2021-10-13 22:36:38,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:38,975 INFO L276 IsEmpty]: Start isEmpty. Operand 3780 states and 10204 transitions. [2021-10-13 22:36:38,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:38,979 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:38,979 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:38,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-10-13 22:36:38,979 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:38,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:38,979 INFO L82 PathProgramCache]: Analyzing trace with hash -566568685, now seen corresponding path program 104 times [2021-10-13 22:36:38,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:38,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515795763] [2021-10-13 22:36:38,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:38,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:39,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:39,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515795763] [2021-10-13 22:36:39,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515795763] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:39,548 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:39,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:39,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249991174] [2021-10-13 22:36:39,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:39,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:39,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:39,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:39,549 INFO L87 Difference]: Start difference. First operand 3780 states and 10204 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:41,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:41,828 INFO L93 Difference]: Finished difference Result 6638 states and 16930 transitions. [2021-10-13 22:36:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:41,828 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:41,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:41,835 INFO L225 Difference]: With dead ends: 6638 [2021-10-13 22:36:41,835 INFO L226 Difference]: Without dead ends: 6638 [2021-10-13 22:36:41,835 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2017.8ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:41,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6638 states. [2021-10-13 22:36:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6638 to 3778. [2021-10-13 22:36:41,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:41,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:36:41,887 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:36:41,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:41,887 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:36:41,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:41,887 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:36:41,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:41,891 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:41,891 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:41,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-10-13 22:36:41,891 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:41,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:41,891 INFO L82 PathProgramCache]: Analyzing trace with hash 667051573, now seen corresponding path program 105 times [2021-10-13 22:36:41,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:41,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401419067] [2021-10-13 22:36:41,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:41,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:42,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:42,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401419067] [2021-10-13 22:36:42,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401419067] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:42,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:42,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:42,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93986372] [2021-10-13 22:36:42,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:42,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:42,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:42,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:42,434 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:44,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:44,741 INFO L93 Difference]: Finished difference Result 6789 states and 17239 transitions. [2021-10-13 22:36:44,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:44,742 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:44,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:44,750 INFO L225 Difference]: With dead ends: 6789 [2021-10-13 22:36:44,750 INFO L226 Difference]: Without dead ends: 6789 [2021-10-13 22:36:44,750 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1982.7ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:44,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2021-10-13 22:36:44,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 3784. [2021-10-13 22:36:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3782 states have (on average 2.7006874669487044) internal successors, (10214), 3783 states have internal predecessors, (10214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 10214 transitions. [2021-10-13 22:36:44,804 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 10214 transitions. Word has length 96 [2021-10-13 22:36:44,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:44,804 INFO L470 AbstractCegarLoop]: Abstraction has 3784 states and 10214 transitions. [2021-10-13 22:36:44,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 10214 transitions. [2021-10-13 22:36:44,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:44,820 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:44,820 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:44,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-10-13 22:36:44,820 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:44,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:44,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1819094665, now seen corresponding path program 106 times [2021-10-13 22:36:44,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:44,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784404170] [2021-10-13 22:36:44,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:44,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:45,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784404170] [2021-10-13 22:36:45,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784404170] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:45,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:45,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:45,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239989505] [2021-10-13 22:36:45,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:45,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:45,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:45,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:45,360 INFO L87 Difference]: Start difference. First operand 3784 states and 10214 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:47,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:47,624 INFO L93 Difference]: Finished difference Result 6962 states and 17606 transitions. [2021-10-13 22:36:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:36:47,624 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:47,632 INFO L225 Difference]: With dead ends: 6962 [2021-10-13 22:36:47,632 INFO L226 Difference]: Without dead ends: 6962 [2021-10-13 22:36:47,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2002.0ms TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:36:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6962 states. [2021-10-13 22:36:47,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6962 to 3782. [2021-10-13 22:36:47,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3780 states have (on average 2.700793650793651) internal successors, (10209), 3781 states have internal predecessors, (10209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 10209 transitions. [2021-10-13 22:36:47,687 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 10209 transitions. Word has length 96 [2021-10-13 22:36:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:47,687 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 10209 transitions. [2021-10-13 22:36:47,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 10209 transitions. [2021-10-13 22:36:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:47,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:47,690 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:47,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-10-13 22:36:47,690 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:47,691 INFO L82 PathProgramCache]: Analyzing trace with hash -741946895, now seen corresponding path program 107 times [2021-10-13 22:36:47,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:47,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820535512] [2021-10-13 22:36:47,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:47,691 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:48,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:48,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820535512] [2021-10-13 22:36:48,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820535512] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:48,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:48,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:48,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284269043] [2021-10-13 22:36:48,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:48,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:48,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:48,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:48,227 INFO L87 Difference]: Start difference. First operand 3782 states and 10209 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:50,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:50,736 INFO L93 Difference]: Finished difference Result 6552 states and 16752 transitions. [2021-10-13 22:36:50,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:50,737 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:50,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:50,745 INFO L225 Difference]: With dead ends: 6552 [2021-10-13 22:36:50,745 INFO L226 Difference]: Without dead ends: 6552 [2021-10-13 22:36:50,745 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2103.0ms TimeCoverageRelationStatistics Valid=566, Invalid=1690, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:50,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2021-10-13 22:36:50,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3778. [2021-10-13 22:36:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:36:50,808 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:36:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:50,808 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:36:50,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:50,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:36:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:50,811 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:50,812 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:50,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-10-13 22:36:50,812 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:50,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:50,812 INFO L82 PathProgramCache]: Analyzing trace with hash -2091167439, now seen corresponding path program 108 times [2021-10-13 22:36:50,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:50,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884600969] [2021-10-13 22:36:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:50,812 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:51,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:51,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:51,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884600969] [2021-10-13 22:36:51,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884600969] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:51,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:51,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:51,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318095127] [2021-10-13 22:36:51,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:51,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:51,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:51,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:51,387 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:54,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:54,260 INFO L93 Difference]: Finished difference Result 6422 states and 16571 transitions. [2021-10-13 22:36:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:36:54,261 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:54,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:54,268 INFO L225 Difference]: With dead ends: 6422 [2021-10-13 22:36:54,268 INFO L226 Difference]: Without dead ends: 6422 [2021-10-13 22:36:54,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2514.6ms TimeCoverageRelationStatistics Valid=609, Invalid=1647, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:36:54,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6422 states. [2021-10-13 22:36:54,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6422 to 3778. [2021-10-13 22:36:54,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:54,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:36:54,318 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:36:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:54,318 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:36:54,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:54,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:36:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:54,321 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:54,321 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:54,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-10-13 22:36:54,321 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:54,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:54,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1424896427, now seen corresponding path program 109 times [2021-10-13 22:36:54,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:54,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968538374] [2021-10-13 22:36:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:54,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:54,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:54,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:54,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968538374] [2021-10-13 22:36:54,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968538374] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:54,886 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:54,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:54,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539982714] [2021-10-13 22:36:54,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:54,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:54,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:54,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:54,892 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:58,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:36:58,669 INFO L93 Difference]: Finished difference Result 8174 states and 20936 transitions. [2021-10-13 22:36:58,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:36:58,669 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:36:58,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:36:58,678 INFO L225 Difference]: With dead ends: 8174 [2021-10-13 22:36:58,678 INFO L226 Difference]: Without dead ends: 8174 [2021-10-13 22:36:58,678 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3354.5ms TimeCoverageRelationStatistics Valid=817, Invalid=2045, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:36:58,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2021-10-13 22:36:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 3814. [2021-10-13 22:36:58,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3812 states have (on average 2.7038300104931796) internal successors, (10307), 3813 states have internal predecessors, (10307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 10307 transitions. [2021-10-13 22:36:58,739 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 10307 transitions. Word has length 96 [2021-10-13 22:36:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:36:58,739 INFO L470 AbstractCegarLoop]: Abstraction has 3814 states and 10307 transitions. [2021-10-13 22:36:58,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:36:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 10307 transitions. [2021-10-13 22:36:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:36:58,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:36:58,743 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:36:58,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-10-13 22:36:58,743 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:36:58,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:36:58,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1772142833, now seen corresponding path program 110 times [2021-10-13 22:36:58,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:36:58,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842866314] [2021-10-13 22:36:58,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:36:58,744 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:36:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:36:59,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:36:59,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:36:59,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842866314] [2021-10-13 22:36:59,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842866314] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:36:59,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:36:59,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:36:59,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867929339] [2021-10-13 22:36:59,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:36:59,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:36:59,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:36:59,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:36:59,327 INFO L87 Difference]: Start difference. First operand 3814 states and 10307 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:03,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:03,322 INFO L93 Difference]: Finished difference Result 7608 states and 19715 transitions. [2021-10-13 22:37:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:37:03,322 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:03,330 INFO L225 Difference]: With dead ends: 7608 [2021-10-13 22:37:03,330 INFO L226 Difference]: Without dead ends: 7608 [2021-10-13 22:37:03,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 3522.8ms TimeCoverageRelationStatistics Valid=833, Invalid=2029, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:37:03,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7608 states. [2021-10-13 22:37:03,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7608 to 3778. [2021-10-13 22:37:03,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:03,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:37:03,378 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:37:03,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:03,378 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:37:03,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:03,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:37:03,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:03,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:03,382 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:03,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-10-13 22:37:03,382 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:03,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:03,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1833149423, now seen corresponding path program 111 times [2021-10-13 22:37:03,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:03,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695018036] [2021-10-13 22:37:03,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:03,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:03,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:03,931 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:03,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695018036] [2021-10-13 22:37:03,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695018036] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:03,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:03,932 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:03,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923988335] [2021-10-13 22:37:03,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:03,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:03,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:03,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:03,932 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:06,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:06,698 INFO L93 Difference]: Finished difference Result 6391 states and 16392 transitions. [2021-10-13 22:37:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:37:06,698 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:06,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:06,704 INFO L225 Difference]: With dead ends: 6391 [2021-10-13 22:37:06,704 INFO L226 Difference]: Without dead ends: 6391 [2021-10-13 22:37:06,704 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2407.5ms TimeCoverageRelationStatistics Valid=594, Invalid=1662, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:37:06,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6391 states. [2021-10-13 22:37:06,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6391 to 3782. [2021-10-13 22:37:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3782 states, 3780 states have (on average 2.700793650793651) internal successors, (10209), 3781 states have internal predecessors, (10209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:06,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3782 states to 3782 states and 10209 transitions. [2021-10-13 22:37:06,751 INFO L78 Accepts]: Start accepts. Automaton has 3782 states and 10209 transitions. Word has length 96 [2021-10-13 22:37:06,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:06,751 INFO L470 AbstractCegarLoop]: Abstraction has 3782 states and 10209 transitions. [2021-10-13 22:37:06,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:06,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3782 states and 10209 transitions. [2021-10-13 22:37:06,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:06,754 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:06,755 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:06,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-10-13 22:37:06,755 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:06,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:06,755 INFO L82 PathProgramCache]: Analyzing trace with hash 578153059, now seen corresponding path program 112 times [2021-10-13 22:37:06,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:06,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378561583] [2021-10-13 22:37:06,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:06,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:07,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:07,291 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378561583] [2021-10-13 22:37:07,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378561583] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:07,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:07,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:07,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146762242] [2021-10-13 22:37:07,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:07,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:07,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:07,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:07,292 INFO L87 Difference]: Start difference. First operand 3782 states and 10209 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:09,808 INFO L93 Difference]: Finished difference Result 6472 states and 16546 transitions. [2021-10-13 22:37:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:09,809 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:09,816 INFO L225 Difference]: With dead ends: 6472 [2021-10-13 22:37:09,816 INFO L226 Difference]: Without dead ends: 6472 [2021-10-13 22:37:09,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2238.7ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2021-10-13 22:37:09,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 3784. [2021-10-13 22:37:09,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3782 states have (on average 2.7006874669487044) internal successors, (10214), 3783 states have internal predecessors, (10214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:09,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 10214 transitions. [2021-10-13 22:37:09,871 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 10214 transitions. Word has length 96 [2021-10-13 22:37:09,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:09,871 INFO L470 AbstractCegarLoop]: Abstraction has 3784 states and 10214 transitions. [2021-10-13 22:37:09,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:09,871 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 10214 transitions. [2021-10-13 22:37:09,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:09,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:09,875 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:09,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-10-13 22:37:09,875 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:09,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:09,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1730196151, now seen corresponding path program 113 times [2021-10-13 22:37:09,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:09,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049217447] [2021-10-13 22:37:09,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:09,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:10,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:10,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049217447] [2021-10-13 22:37:10,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049217447] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:10,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:10,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:10,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535665691] [2021-10-13 22:37:10,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:10,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:10,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:10,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:10,413 INFO L87 Difference]: Start difference. First operand 3784 states and 10214 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:12,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:12,993 INFO L93 Difference]: Finished difference Result 6237 states and 16064 transitions. [2021-10-13 22:37:12,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:12,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:12,999 INFO L225 Difference]: With dead ends: 6237 [2021-10-13 22:37:13,000 INFO L226 Difference]: Without dead ends: 6237 [2021-10-13 22:37:13,000 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2258.0ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6237 states. [2021-10-13 22:37:13,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6237 to 3778. [2021-10-13 22:37:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:37:13,045 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:37:13,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:13,045 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:37:13,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:13,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:37:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:13,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:13,049 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:13,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-10-13 22:37:13,049 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:13,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:13,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1627470243, now seen corresponding path program 114 times [2021-10-13 22:37:13,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:13,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462094180] [2021-10-13 22:37:13,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:13,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:13,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:13,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:13,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462094180] [2021-10-13 22:37:13,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462094180] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:13,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:13,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:13,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956487030] [2021-10-13 22:37:13,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:13,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:13,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:13,609 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:16,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:16,477 INFO L93 Difference]: Finished difference Result 8693 states and 22410 transitions. [2021-10-13 22:37:16,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:16,477 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:16,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:16,487 INFO L225 Difference]: With dead ends: 8693 [2021-10-13 22:37:16,487 INFO L226 Difference]: Without dead ends: 8693 [2021-10-13 22:37:16,487 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2447.7ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:16,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8693 states. [2021-10-13 22:37:16,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8693 to 3826. [2021-10-13 22:37:16,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3826 states, 3824 states have (on average 2.7047594142259412) internal successors, (10343), 3825 states have internal predecessors, (10343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:16,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3826 states and 10343 transitions. [2021-10-13 22:37:16,557 INFO L78 Accepts]: Start accepts. Automaton has 3826 states and 10343 transitions. Word has length 96 [2021-10-13 22:37:16,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:16,558 INFO L470 AbstractCegarLoop]: Abstraction has 3826 states and 10343 transitions. [2021-10-13 22:37:16,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:16,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3826 states and 10343 transitions. [2021-10-13 22:37:16,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:16,562 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:16,562 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] [2021-10-13 22:37:16,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-10-13 22:37:16,562 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:16,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:16,562 INFO L82 PathProgramCache]: Analyzing trace with hash 529542207, now seen corresponding path program 115 times [2021-10-13 22:37:16,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:16,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441389601] [2021-10-13 22:37:16,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:16,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:17,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:17,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441389601] [2021-10-13 22:37:17,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441389601] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:17,136 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:17,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:17,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235131435] [2021-10-13 22:37:17,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:17,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:17,137 INFO L87 Difference]: Start difference. First operand 3826 states and 10343 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:20,797 INFO L93 Difference]: Finished difference Result 9801 states and 25324 transitions. [2021-10-13 22:37:20,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:37:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:20,807 INFO L225 Difference]: With dead ends: 9801 [2021-10-13 22:37:20,807 INFO L226 Difference]: Without dead ends: 9801 [2021-10-13 22:37:20,808 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 3269.1ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:37:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2021-10-13 22:37:20,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 3790. [2021-10-13 22:37:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 3788 states have (on average 2.7019535374868004) internal successors, (10235), 3789 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) [2021-10-13 22:37:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 10235 transitions. [2021-10-13 22:37:20,865 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 10235 transitions. Word has length 96 [2021-10-13 22:37:20,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:20,865 INFO L470 AbstractCegarLoop]: Abstraction has 3790 states and 10235 transitions. [2021-10-13 22:37:20,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 10235 transitions. [2021-10-13 22:37:20,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:20,868 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:20,868 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:20,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-10-13 22:37:20,868 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:20,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:20,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1199871781, now seen corresponding path program 116 times [2021-10-13 22:37:20,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:20,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693222681] [2021-10-13 22:37:20,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:20,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:21,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:21,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693222681] [2021-10-13 22:37:21,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693222681] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:21,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:21,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:21,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641504969] [2021-10-13 22:37:21,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:21,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:21,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:21,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:21,467 INFO L87 Difference]: Start difference. First operand 3790 states and 10235 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:24,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:24,082 INFO L93 Difference]: Finished difference Result 7847 states and 20230 transitions. [2021-10-13 22:37:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:24,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:24,091 INFO L225 Difference]: With dead ends: 7847 [2021-10-13 22:37:24,091 INFO L226 Difference]: Without dead ends: 7847 [2021-10-13 22:37:24,092 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2327.4ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7847 states. [2021-10-13 22:37:24,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7847 to 3792. [2021-10-13 22:37:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3790 states have (on average 2.7018469656992083) internal successors, (10240), 3791 states have internal predecessors, (10240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:24,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 10240 transitions. [2021-10-13 22:37:24,149 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 10240 transitions. Word has length 96 [2021-10-13 22:37:24,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:24,149 INFO L470 AbstractCegarLoop]: Abstraction has 3792 states and 10240 transitions. [2021-10-13 22:37:24,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 10240 transitions. [2021-10-13 22:37:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:24,153 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:24,153 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:24,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-10-13 22:37:24,153 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash -728927469, now seen corresponding path program 117 times [2021-10-13 22:37:24,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:24,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246079396] [2021-10-13 22:37:24,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:24,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:24,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:24,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:24,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:24,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246079396] [2021-10-13 22:37:24,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246079396] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:24,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:24,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:24,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980497966] [2021-10-13 22:37:24,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:24,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:24,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:24,710 INFO L87 Difference]: Start difference. First operand 3792 states and 10240 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:27,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:27,383 INFO L93 Difference]: Finished difference Result 7769 states and 20079 transitions. [2021-10-13 22:37:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:27,383 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:27,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:27,393 INFO L225 Difference]: With dead ends: 7769 [2021-10-13 22:37:27,393 INFO L226 Difference]: Without dead ends: 7769 [2021-10-13 22:37:27,393 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2321.5ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:27,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7769 states. [2021-10-13 22:37:27,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7769 to 3790. [2021-10-13 22:37:27,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3790 states, 3788 states have (on average 2.7019535374868004) internal successors, (10235), 3789 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) [2021-10-13 22:37:27,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3790 states to 3790 states and 10235 transitions. [2021-10-13 22:37:27,460 INFO L78 Accepts]: Start accepts. Automaton has 3790 states and 10235 transitions. Word has length 96 [2021-10-13 22:37:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:27,460 INFO L470 AbstractCegarLoop]: Abstraction has 3790 states and 10235 transitions. [2021-10-13 22:37:27,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:27,460 INFO L276 IsEmpty]: Start isEmpty. Operand 3790 states and 10235 transitions. [2021-10-13 22:37:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:27,463 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:27,463 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:27,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-10-13 22:37:27,464 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:27,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:27,464 INFO L82 PathProgramCache]: Analyzing trace with hash -458608749, now seen corresponding path program 118 times [2021-10-13 22:37:27,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:27,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114745687] [2021-10-13 22:37:27,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:27,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:28,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:28,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:28,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114745687] [2021-10-13 22:37:28,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114745687] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:28,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:28,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:28,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749902065] [2021-10-13 22:37:28,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:28,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:28,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:28,006 INFO L87 Difference]: Start difference. First operand 3790 states and 10235 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:31,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:31,572 INFO L93 Difference]: Finished difference Result 8547 states and 22121 transitions. [2021-10-13 22:37:31,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:37:31,572 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:31,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:31,581 INFO L225 Difference]: With dead ends: 8547 [2021-10-13 22:37:31,582 INFO L226 Difference]: Without dead ends: 8547 [2021-10-13 22:37:31,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3227.0ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:37:31,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2021-10-13 22:37:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 3802. [2021-10-13 22:37:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3802 states, 3800 states have (on average 2.7028947368421052) internal successors, (10271), 3801 states have internal predecessors, (10271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 10271 transitions. [2021-10-13 22:37:31,638 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 10271 transitions. Word has length 96 [2021-10-13 22:37:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:31,638 INFO L470 AbstractCegarLoop]: Abstraction has 3802 states and 10271 transitions. [2021-10-13 22:37:31,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 10271 transitions. [2021-10-13 22:37:31,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:31,642 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:31,642 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:31,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-10-13 22:37:31,642 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:31,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:31,642 INFO L82 PathProgramCache]: Analyzing trace with hash 358881745, now seen corresponding path program 119 times [2021-10-13 22:37:31,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:31,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981246613] [2021-10-13 22:37:31,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:31,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:32,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:32,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981246613] [2021-10-13 22:37:32,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981246613] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:32,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:32,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:32,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279643989] [2021-10-13 22:37:32,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:32,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:32,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:32,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:32,188 INFO L87 Difference]: Start difference. First operand 3802 states and 10271 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:35,053 INFO L93 Difference]: Finished difference Result 7388 states and 19135 transitions. [2021-10-13 22:37:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:35,057 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:35,069 INFO L225 Difference]: With dead ends: 7388 [2021-10-13 22:37:35,070 INFO L226 Difference]: Without dead ends: 7388 [2021-10-13 22:37:35,070 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2400.1ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:35,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7388 states. [2021-10-13 22:37:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7388 to 3778. [2021-10-13 22:37:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3778 states, 3776 states have (on average 2.7010063559322033) internal successors, (10199), 3777 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3778 states to 3778 states and 10199 transitions. [2021-10-13 22:37:35,139 INFO L78 Accepts]: Start accepts. Automaton has 3778 states and 10199 transitions. Word has length 96 [2021-10-13 22:37:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:35,140 INFO L470 AbstractCegarLoop]: Abstraction has 3778 states and 10199 transitions. [2021-10-13 22:37:35,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 3778 states and 10199 transitions. [2021-10-13 22:37:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:35,143 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:35,143 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:35,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-10-13 22:37:35,144 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:35,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:35,144 INFO L82 PathProgramCache]: Analyzing trace with hash 398420085, now seen corresponding path program 120 times [2021-10-13 22:37:35,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:35,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788711143] [2021-10-13 22:37:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:35,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:35,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:35,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788711143] [2021-10-13 22:37:35,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788711143] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:35,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:35,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:35,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291587541] [2021-10-13 22:37:35,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:35,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:35,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:35,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:35,701 INFO L87 Difference]: Start difference. First operand 3778 states and 10199 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:38,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:38,311 INFO L93 Difference]: Finished difference Result 6442 states and 16506 transitions. [2021-10-13 22:37:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:37:38,312 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:38,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:38,321 INFO L225 Difference]: With dead ends: 6442 [2021-10-13 22:37:38,321 INFO L226 Difference]: Without dead ends: 6442 [2021-10-13 22:37:38,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2272.8ms TimeCoverageRelationStatistics Valid=579, Invalid=1677, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:37:38,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6442 states. [2021-10-13 22:37:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6442 to 3766. [2021-10-13 22:37:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 2.7016471838469713) internal successors, (10169), 3765 states have internal predecessors, (10169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:38,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 10169 transitions. [2021-10-13 22:37:38,380 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 10169 transitions. Word has length 96 [2021-10-13 22:37:38,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:38,380 INFO L470 AbstractCegarLoop]: Abstraction has 3766 states and 10169 transitions. [2021-10-13 22:37:38,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:38,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 10169 transitions. [2021-10-13 22:37:38,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:38,384 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:38,384 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] [2021-10-13 22:37:38,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-10-13 22:37:38,384 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:38,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:38,384 INFO L82 PathProgramCache]: Analyzing trace with hash -856576279, now seen corresponding path program 121 times [2021-10-13 22:37:38,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:38,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843383980] [2021-10-13 22:37:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:38,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:38,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:38,946 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:38,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843383980] [2021-10-13 22:37:38,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843383980] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:38,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:38,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:38,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862502543] [2021-10-13 22:37:38,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:38,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:38,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:38,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:38,947 INFO L87 Difference]: Start difference. First operand 3766 states and 10169 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:41,540 INFO L93 Difference]: Finished difference Result 6826 states and 17304 transitions. [2021-10-13 22:37:41,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:41,550 INFO L225 Difference]: With dead ends: 6826 [2021-10-13 22:37:41,550 INFO L226 Difference]: Without dead ends: 6826 [2021-10-13 22:37:41,550 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2106.0ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:41,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6826 states. [2021-10-13 22:37:41,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6826 to 3768. [2021-10-13 22:37:41,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3766 states have (on average 2.70154009559214) internal successors, (10174), 3767 states have internal predecessors, (10174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 10174 transitions. [2021-10-13 22:37:41,655 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 10174 transitions. Word has length 96 [2021-10-13 22:37:41,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:41,655 INFO L470 AbstractCegarLoop]: Abstraction has 3768 states and 10174 transitions. [2021-10-13 22:37:41,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:41,655 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 10174 transitions. [2021-10-13 22:37:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:41,658 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:41,659 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:41,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-10-13 22:37:41,659 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:41,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:41,659 INFO L82 PathProgramCache]: Analyzing trace with hash 295466813, now seen corresponding path program 122 times [2021-10-13 22:37:41,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:41,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917324849] [2021-10-13 22:37:41,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:41,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:42,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:42,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917324849] [2021-10-13 22:37:42,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917324849] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:42,203 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:42,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:42,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885301616] [2021-10-13 22:37:42,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:42,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:42,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:42,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:42,204 INFO L87 Difference]: Start difference. First operand 3768 states and 10174 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:44,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:44,654 INFO L93 Difference]: Finished difference Result 6591 states and 16822 transitions. [2021-10-13 22:37:44,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:44,654 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:44,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:44,670 INFO L225 Difference]: With dead ends: 6591 [2021-10-13 22:37:44,670 INFO L226 Difference]: Without dead ends: 6591 [2021-10-13 22:37:44,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2151.0ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:44,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2021-10-13 22:37:44,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 3762. [2021-10-13 22:37:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3762 states, 3760 states have (on average 2.7018617021276596) internal successors, (10159), 3761 states have internal predecessors, (10159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3762 states to 3762 states and 10159 transitions. [2021-10-13 22:37:44,727 INFO L78 Accepts]: Start accepts. Automaton has 3762 states and 10159 transitions. Word has length 96 [2021-10-13 22:37:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:44,727 INFO L470 AbstractCegarLoop]: Abstraction has 3762 states and 10159 transitions. [2021-10-13 22:37:44,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 3762 states and 10159 transitions. [2021-10-13 22:37:44,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:44,731 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:44,731 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:44,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-10-13 22:37:44,731 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:44,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:44,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1938300405, now seen corresponding path program 123 times [2021-10-13 22:37:44,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:44,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973714986] [2021-10-13 22:37:44,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:44,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:45,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:45,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973714986] [2021-10-13 22:37:45,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973714986] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:45,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:45,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:45,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637833456] [2021-10-13 22:37:45,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:45,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:45,289 INFO L87 Difference]: Start difference. First operand 3762 states and 10159 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:47,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:47,697 INFO L93 Difference]: Finished difference Result 6553 states and 16726 transitions. [2021-10-13 22:37:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:47,698 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:47,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:47,706 INFO L225 Difference]: With dead ends: 6553 [2021-10-13 22:37:47,706 INFO L226 Difference]: Without dead ends: 6553 [2021-10-13 22:37:47,706 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2148.9ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6553 states. [2021-10-13 22:37:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6553 to 3768. [2021-10-13 22:37:47,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3766 states have (on average 2.70154009559214) internal successors, (10174), 3767 states have internal predecessors, (10174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 10174 transitions. [2021-10-13 22:37:47,763 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 10174 transitions. Word has length 96 [2021-10-13 22:37:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:47,763 INFO L470 AbstractCegarLoop]: Abstraction has 3768 states and 10174 transitions. [2021-10-13 22:37:47,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:47,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 10174 transitions. [2021-10-13 22:37:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:47,767 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:47,767 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:47,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-10-13 22:37:47,768 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:47,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1204623799, now seen corresponding path program 124 times [2021-10-13 22:37:47,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:47,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126866847] [2021-10-13 22:37:47,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:47,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:48,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:48,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:48,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126866847] [2021-10-13 22:37:48,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126866847] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:48,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:48,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:48,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033834786] [2021-10-13 22:37:48,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:48,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:48,313 INFO L87 Difference]: Start difference. First operand 3768 states and 10174 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:50,762 INFO L93 Difference]: Finished difference Result 6726 states and 17093 transitions. [2021-10-13 22:37:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:50,763 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:50,771 INFO L225 Difference]: With dead ends: 6726 [2021-10-13 22:37:50,771 INFO L226 Difference]: Without dead ends: 6726 [2021-10-13 22:37:50,771 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2115.0ms TimeCoverageRelationStatistics Valid=548, Invalid=1614, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6726 states. [2021-10-13 22:37:50,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6726 to 3766. [2021-10-13 22:37:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3766 states, 3764 states have (on average 2.7016471838469713) internal successors, (10169), 3765 states have internal predecessors, (10169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:50,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3766 states to 3766 states and 10169 transitions. [2021-10-13 22:37:50,827 INFO L78 Accepts]: Start accepts. Automaton has 3766 states and 10169 transitions. Word has length 96 [2021-10-13 22:37:50,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:50,827 INFO L470 AbstractCegarLoop]: Abstraction has 3766 states and 10169 transitions. [2021-10-13 22:37:50,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:50,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3766 states and 10169 transitions. [2021-10-13 22:37:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:50,831 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:50,831 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] [2021-10-13 22:37:50,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-10-13 22:37:50,831 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:50,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:50,832 INFO L82 PathProgramCache]: Analyzing trace with hash 529301937, now seen corresponding path program 125 times [2021-10-13 22:37:50,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:50,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897979085] [2021-10-13 22:37:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:50,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:51,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:51,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:51,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897979085] [2021-10-13 22:37:51,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897979085] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:51,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:51,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:51,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576575425] [2021-10-13 22:37:51,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:51,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:51,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:51,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:51,397 INFO L87 Difference]: Start difference. First operand 3766 states and 10169 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:54,033 INFO L93 Difference]: Finished difference Result 6316 states and 16239 transitions. [2021-10-13 22:37:54,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:37:54,033 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:54,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:54,039 INFO L225 Difference]: With dead ends: 6316 [2021-10-13 22:37:54,039 INFO L226 Difference]: Without dead ends: 6316 [2021-10-13 22:37:54,040 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2237.3ms TimeCoverageRelationStatistics Valid=581, Invalid=1675, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:37:54,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6316 states. [2021-10-13 22:37:54,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6316 to 3754. [2021-10-13 22:37:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3752 states have (on average 2.7022921108742004) internal successors, (10139), 3753 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:54,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 10139 transitions. [2021-10-13 22:37:54,085 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 10139 transitions. Word has length 96 [2021-10-13 22:37:54,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:54,085 INFO L470 AbstractCegarLoop]: Abstraction has 3754 states and 10139 transitions. [2021-10-13 22:37:54,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:54,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 10139 transitions. [2021-10-13 22:37:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:54,088 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:54,088 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:54,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-10-13 22:37:54,089 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:54,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:54,089 INFO L82 PathProgramCache]: Analyzing trace with hash 737413529, now seen corresponding path program 126 times [2021-10-13 22:37:54,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:54,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659978133] [2021-10-13 22:37:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:54,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:54,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:54,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659978133] [2021-10-13 22:37:54,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659978133] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:54,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:54,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:54,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188310585] [2021-10-13 22:37:54,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:54,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:54,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:54,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:54,642 INFO L87 Difference]: Start difference. First operand 3754 states and 10139 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:57,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:37:57,488 INFO L93 Difference]: Finished difference Result 8344 states and 21440 transitions. [2021-10-13 22:37:57,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:37:57,489 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:37:57,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:37:57,498 INFO L225 Difference]: With dead ends: 8344 [2021-10-13 22:37:57,498 INFO L226 Difference]: Without dead ends: 8344 [2021-10-13 22:37:57,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2478.1ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:37:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2021-10-13 22:37:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 3754. [2021-10-13 22:37:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 3752 states have (on average 2.7022921108742004) internal successors, (10139), 3753 states have internal predecessors, (10139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 10139 transitions. [2021-10-13 22:37:57,553 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 10139 transitions. Word has length 96 [2021-10-13 22:37:57,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:37:57,553 INFO L470 AbstractCegarLoop]: Abstraction has 3754 states and 10139 transitions. [2021-10-13 22:37:57,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:37:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 10139 transitions. [2021-10-13 22:37:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:37:57,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:37:57,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:37:57,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-10-13 22:37:57,557 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:37:57,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:37:57,557 INFO L82 PathProgramCache]: Analyzing trace with hash -360514507, now seen corresponding path program 127 times [2021-10-13 22:37:57,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:37:57,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999121490] [2021-10-13 22:37:57,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:37:57,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:37:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:37:58,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:37:58,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:37:58,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999121490] [2021-10-13 22:37:58,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999121490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:37:58,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:37:58,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:37:58,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159107956] [2021-10-13 22:37:58,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:37:58,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:37:58,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:37:58,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:37:58,113 INFO L87 Difference]: Start difference. First operand 3754 states and 10139 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:01,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:01,831 INFO L93 Difference]: Finished difference Result 9452 states and 24354 transitions. [2021-10-13 22:38:01,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:38:01,831 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:01,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:01,842 INFO L225 Difference]: With dead ends: 9452 [2021-10-13 22:38:01,842 INFO L226 Difference]: Without dead ends: 9452 [2021-10-13 22:38:01,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 3326.8ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:38:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2021-10-13 22:38:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 3718. [2021-10-13 22:38:01,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3718 states, 3716 states have (on average 2.6994079655543595) internal successors, (10031), 3717 states have internal predecessors, (10031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:01,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3718 states to 3718 states and 10031 transitions. [2021-10-13 22:38:01,903 INFO L78 Accepts]: Start accepts. Automaton has 3718 states and 10031 transitions. Word has length 96 [2021-10-13 22:38:01,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:01,903 INFO L470 AbstractCegarLoop]: Abstraction has 3718 states and 10031 transitions. [2021-10-13 22:38:01,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3718 states and 10031 transitions. [2021-10-13 22:38:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:01,907 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:01,907 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:01,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-10-13 22:38:01,907 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:01,907 INFO L82 PathProgramCache]: Analyzing trace with hash 309815067, now seen corresponding path program 128 times [2021-10-13 22:38:01,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:01,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50403705] [2021-10-13 22:38:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:01,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:02,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:02,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:02,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50403705] [2021-10-13 22:38:02,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50403705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:02,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:02,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:02,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455129591] [2021-10-13 22:38:02,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:02,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:02,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:02,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:02,451 INFO L87 Difference]: Start difference. First operand 3718 states and 10031 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:05,129 INFO L93 Difference]: Finished difference Result 8471 states and 21738 transitions. [2021-10-13 22:38:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:05,129 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:05,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:05,138 INFO L225 Difference]: With dead ends: 8471 [2021-10-13 22:38:05,138 INFO L226 Difference]: Without dead ends: 8471 [2021-10-13 22:38:05,138 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2322.5ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:05,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8471 states. [2021-10-13 22:38:05,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8471 to 3720. [2021-10-13 22:38:05,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3720 states, 3718 states have (on average 2.699300699300699) internal successors, (10036), 3719 states have internal predecessors, (10036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 10036 transitions. [2021-10-13 22:38:05,199 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 10036 transitions. Word has length 96 [2021-10-13 22:38:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:05,199 INFO L470 AbstractCegarLoop]: Abstraction has 3720 states and 10036 transitions. [2021-10-13 22:38:05,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 10036 transitions. [2021-10-13 22:38:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:05,203 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:05,203 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:05,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-10-13 22:38:05,203 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:05,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:05,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1618984183, now seen corresponding path program 129 times [2021-10-13 22:38:05,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:05,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635053624] [2021-10-13 22:38:05,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:05,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:05,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:05,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:05,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635053624] [2021-10-13 22:38:05,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635053624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:05,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:05,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:05,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430855678] [2021-10-13 22:38:05,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:05,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:05,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:05,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:05,762 INFO L87 Difference]: Start difference. First operand 3720 states and 10036 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:08,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:08,445 INFO L93 Difference]: Finished difference Result 8393 states and 21587 transitions. [2021-10-13 22:38:08,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:08,445 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:08,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:08,455 INFO L225 Difference]: With dead ends: 8393 [2021-10-13 22:38:08,455 INFO L226 Difference]: Without dead ends: 8393 [2021-10-13 22:38:08,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 2381.2ms TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:08,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8393 states. [2021-10-13 22:38:08,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8393 to 3718. [2021-10-13 22:38:08,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3718 states, 3716 states have (on average 2.6994079655543595) internal successors, (10031), 3717 states have internal predecessors, (10031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:08,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3718 states to 3718 states and 10031 transitions. [2021-10-13 22:38:08,527 INFO L78 Accepts]: Start accepts. Automaton has 3718 states and 10031 transitions. Word has length 96 [2021-10-13 22:38:08,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:08,527 INFO L470 AbstractCegarLoop]: Abstraction has 3718 states and 10031 transitions. [2021-10-13 22:38:08,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:08,527 INFO L276 IsEmpty]: Start isEmpty. Operand 3718 states and 10031 transitions. [2021-10-13 22:38:08,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:08,531 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:08,531 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:08,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-10-13 22:38:08,531 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1348665463, now seen corresponding path program 130 times [2021-10-13 22:38:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:08,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657378183] [2021-10-13 22:38:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:08,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:08,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:09,075 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:09,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657378183] [2021-10-13 22:38:09,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657378183] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:09,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:09,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:09,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315706525] [2021-10-13 22:38:09,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:09,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:09,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:09,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:09,076 INFO L87 Difference]: Start difference. First operand 3718 states and 10031 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:12,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:12,833 INFO L93 Difference]: Finished difference Result 10521 states and 27097 transitions. [2021-10-13 22:38:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:38:12,833 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:12,845 INFO L225 Difference]: With dead ends: 10521 [2021-10-13 22:38:12,845 INFO L226 Difference]: Without dead ends: 10521 [2021-10-13 22:38:12,845 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3227.9ms TimeCoverageRelationStatistics Valid=779, Invalid=1873, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:38:12,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10521 states. [2021-10-13 22:38:12,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10521 to 3730. [2021-10-13 22:38:12,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3730 states, 3728 states have (on average 2.7003755364806867) internal successors, (10067), 3729 states have internal predecessors, (10067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3730 states to 3730 states and 10067 transitions. [2021-10-13 22:38:12,918 INFO L78 Accepts]: Start accepts. Automaton has 3730 states and 10067 transitions. Word has length 96 [2021-10-13 22:38:12,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:12,918 INFO L470 AbstractCegarLoop]: Abstraction has 3730 states and 10067 transitions. [2021-10-13 22:38:12,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:12,918 INFO L276 IsEmpty]: Start isEmpty. Operand 3730 states and 10067 transitions. [2021-10-13 22:38:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:12,922 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:12,922 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:12,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-10-13 22:38:12,922 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:12,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:12,922 INFO L82 PathProgramCache]: Analyzing trace with hash -531174969, now seen corresponding path program 131 times [2021-10-13 22:38:12,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:12,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117476924] [2021-10-13 22:38:12,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:12,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:13,469 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:13,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117476924] [2021-10-13 22:38:13,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117476924] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:13,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:13,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:13,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339493759] [2021-10-13 22:38:13,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:13,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:13,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:13,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:13,470 INFO L87 Difference]: Start difference. First operand 3730 states and 10067 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:16,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:16,221 INFO L93 Difference]: Finished difference Result 9362 states and 24111 transitions. [2021-10-13 22:38:16,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:16,221 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:16,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:16,230 INFO L225 Difference]: With dead ends: 9362 [2021-10-13 22:38:16,230 INFO L226 Difference]: Without dead ends: 9362 [2021-10-13 22:38:16,230 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 2408.0ms TimeCoverageRelationStatistics Valid=593, Invalid=1569, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9362 states. [2021-10-13 22:38:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9362 to 3706. [2021-10-13 22:38:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3706 states, 3704 states have (on average 2.6984341252699786) internal successors, (9995), 3705 states have internal predecessors, (9995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:16,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3706 states to 3706 states and 9995 transitions. [2021-10-13 22:38:16,288 INFO L78 Accepts]: Start accepts. Automaton has 3706 states and 9995 transitions. Word has length 96 [2021-10-13 22:38:16,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:16,288 INFO L470 AbstractCegarLoop]: Abstraction has 3706 states and 9995 transitions. [2021-10-13 22:38:16,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 3706 states and 9995 transitions. [2021-10-13 22:38:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:16,292 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:16,292 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:16,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-10-13 22:38:16,292 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:16,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:16,292 INFO L82 PathProgramCache]: Analyzing trace with hash 1926101461, now seen corresponding path program 132 times [2021-10-13 22:38:16,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:16,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661163025] [2021-10-13 22:38:16,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:16,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:16,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:16,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:16,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661163025] [2021-10-13 22:38:16,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661163025] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:16,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:16,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:16,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038443330] [2021-10-13 22:38:16,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:16,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:16,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:16,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:16,832 INFO L87 Difference]: Start difference. First operand 3706 states and 9995 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:19,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:19,354 INFO L93 Difference]: Finished difference Result 7466 states and 19153 transitions. [2021-10-13 22:38:19,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:19,355 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:19,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:19,363 INFO L225 Difference]: With dead ends: 7466 [2021-10-13 22:38:19,363 INFO L226 Difference]: Without dead ends: 7466 [2021-10-13 22:38:19,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2185.3ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:19,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7466 states. [2021-10-13 22:38:19,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7466 to 3700. [2021-10-13 22:38:19,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3700 states, 3698 states have (on average 2.6987560843699296) internal successors, (9980), 3699 states have internal predecessors, (9980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:19,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3700 states to 3700 states and 9980 transitions. [2021-10-13 22:38:19,420 INFO L78 Accepts]: Start accepts. Automaton has 3700 states and 9980 transitions. Word has length 96 [2021-10-13 22:38:19,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:19,420 INFO L470 AbstractCegarLoop]: Abstraction has 3700 states and 9980 transitions. [2021-10-13 22:38:19,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:19,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3700 states and 9980 transitions. [2021-10-13 22:38:19,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:19,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:19,423 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] [2021-10-13 22:38:19,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-10-13 22:38:19,424 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:19,424 INFO L82 PathProgramCache]: Analyzing trace with hash -2697789, now seen corresponding path program 133 times [2021-10-13 22:38:19,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:19,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399190407] [2021-10-13 22:38:19,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:19,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:19,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:19,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399190407] [2021-10-13 22:38:19,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399190407] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:19,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:19,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:19,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397539220] [2021-10-13 22:38:19,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:19,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:19,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:19,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:19,960 INFO L87 Difference]: Start difference. First operand 3700 states and 9980 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:22,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:22,500 INFO L93 Difference]: Finished difference Result 7639 states and 19520 transitions. [2021-10-13 22:38:22,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:22,501 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:22,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:22,510 INFO L225 Difference]: With dead ends: 7639 [2021-10-13 22:38:22,510 INFO L226 Difference]: Without dead ends: 7639 [2021-10-13 22:38:22,511 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2160.4ms TimeCoverageRelationStatistics Valid=563, Invalid=1599, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:22,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2021-10-13 22:38:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 3698. [2021-10-13 22:38:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.6988636363636362) internal successors, (9975), 3697 states have internal predecessors, (9975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:22,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9975 transitions. [2021-10-13 22:38:22,571 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9975 transitions. Word has length 96 [2021-10-13 22:38:22,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:22,571 INFO L470 AbstractCegarLoop]: Abstraction has 3698 states and 9975 transitions. [2021-10-13 22:38:22,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:22,571 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9975 transitions. [2021-10-13 22:38:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:22,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:22,575 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:22,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-10-13 22:38:22,575 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:22,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:22,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1605881045, now seen corresponding path program 134 times [2021-10-13 22:38:22,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:22,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547640292] [2021-10-13 22:38:22,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:22,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:22,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:23,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:23,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:23,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547640292] [2021-10-13 22:38:23,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547640292] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:23,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:23,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:23,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533243887] [2021-10-13 22:38:23,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:23,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:23,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:23,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:23,127 INFO L87 Difference]: Start difference. First operand 3698 states and 9975 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:25,744 INFO L93 Difference]: Finished difference Result 7424 states and 19083 transitions. [2021-10-13 22:38:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:38:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:25,752 INFO L225 Difference]: With dead ends: 7424 [2021-10-13 22:38:25,752 INFO L226 Difference]: Without dead ends: 7424 [2021-10-13 22:38:25,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2311.7ms TimeCoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:38:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2021-10-13 22:38:25,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 3694. [2021-10-13 22:38:25,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3694 states, 3692 states have (on average 2.6990790899241603) internal successors, (9965), 3693 states have internal predecessors, (9965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:25,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3694 states to 3694 states and 9965 transitions. [2021-10-13 22:38:25,803 INFO L78 Accepts]: Start accepts. Automaton has 3694 states and 9965 transitions. Word has length 96 [2021-10-13 22:38:25,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:25,803 INFO L470 AbstractCegarLoop]: Abstraction has 3694 states and 9965 transitions. [2021-10-13 22:38:25,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3694 states and 9965 transitions. [2021-10-13 22:38:25,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:25,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:25,808 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:25,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-10-13 22:38:25,808 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:25,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:25,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1493344015, now seen corresponding path program 135 times [2021-10-13 22:38:25,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:25,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363056232] [2021-10-13 22:38:25,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:25,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:26,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:26,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363056232] [2021-10-13 22:38:26,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363056232] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:26,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:26,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:26,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770637081] [2021-10-13 22:38:26,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:26,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:26,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:26,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:26,351 INFO L87 Difference]: Start difference. First operand 3694 states and 9965 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:30,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:30,351 INFO L93 Difference]: Finished difference Result 8227 states and 21204 transitions. [2021-10-13 22:38:30,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:38:30,351 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:30,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:30,361 INFO L225 Difference]: With dead ends: 8227 [2021-10-13 22:38:30,361 INFO L226 Difference]: Without dead ends: 8227 [2021-10-13 22:38:30,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 3396.7ms TimeCoverageRelationStatistics Valid=835, Invalid=2027, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:38:30,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8227 states. [2021-10-13 22:38:30,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8227 to 3658. [2021-10-13 22:38:30,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3658 states, 3656 states have (on average 2.696115973741794) internal successors, (9857), 3657 states have internal predecessors, (9857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:30,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3658 states to 3658 states and 9857 transitions. [2021-10-13 22:38:30,429 INFO L78 Accepts]: Start accepts. Automaton has 3658 states and 9857 transitions. Word has length 96 [2021-10-13 22:38:30,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:30,429 INFO L470 AbstractCegarLoop]: Abstraction has 3658 states and 9857 transitions. [2021-10-13 22:38:30,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:30,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 9857 transitions. [2021-10-13 22:38:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:30,433 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:30,433 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:30,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-10-13 22:38:30,433 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:30,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:30,433 INFO L82 PathProgramCache]: Analyzing trace with hash -675853521, now seen corresponding path program 136 times [2021-10-13 22:38:30,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:30,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596391352] [2021-10-13 22:38:30,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:30,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:30,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:30,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596391352] [2021-10-13 22:38:30,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596391352] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:30,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:30,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:30,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958928932] [2021-10-13 22:38:30,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:30,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:30,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:30,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:30,976 INFO L87 Difference]: Start difference. First operand 3658 states and 9857 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:34,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:34,692 INFO L93 Difference]: Finished difference Result 8452 states and 21608 transitions. [2021-10-13 22:38:34,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:38:34,692 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:34,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:34,701 INFO L225 Difference]: With dead ends: 8452 [2021-10-13 22:38:34,701 INFO L226 Difference]: Without dead ends: 8452 [2021-10-13 22:38:34,702 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 3227.7ms TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:38:34,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8452 states. [2021-10-13 22:38:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8452 to 3646. [2021-10-13 22:38:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3644 states have (on average 2.6951152579582875) internal successors, (9821), 3645 states have internal predecessors, (9821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 9821 transitions. [2021-10-13 22:38:34,755 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 9821 transitions. Word has length 96 [2021-10-13 22:38:34,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:34,755 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 9821 transitions. [2021-10-13 22:38:34,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:34,755 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 9821 transitions. [2021-10-13 22:38:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:34,758 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:34,758 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:34,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-10-13 22:38:34,759 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:34,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1454999243, now seen corresponding path program 137 times [2021-10-13 22:38:34,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:34,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509733328] [2021-10-13 22:38:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:34,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:35,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:35,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:35,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509733328] [2021-10-13 22:38:35,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509733328] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:35,311 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:35,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:35,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557346577] [2021-10-13 22:38:35,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:35,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:35,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:35,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:35,312 INFO L87 Difference]: Start difference. First operand 3646 states and 9821 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:38,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:38,105 INFO L93 Difference]: Finished difference Result 6967 states and 17940 transitions. [2021-10-13 22:38:38,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:38:38,106 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:38,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:38,130 INFO L225 Difference]: With dead ends: 6967 [2021-10-13 22:38:38,130 INFO L226 Difference]: Without dead ends: 6967 [2021-10-13 22:38:38,131 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2445.1ms TimeCoverageRelationStatistics Valid=611, Invalid=1645, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:38:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6967 states. [2021-10-13 22:38:38,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6967 to 3586. [2021-10-13 22:38:38,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3586 states, 3584 states have (on average 2.691685267857143) internal successors, (9647), 3585 states have internal predecessors, (9647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:38,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3586 states to 3586 states and 9647 transitions. [2021-10-13 22:38:38,174 INFO L78 Accepts]: Start accepts. Automaton has 3586 states and 9647 transitions. Word has length 96 [2021-10-13 22:38:38,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:38,174 INFO L470 AbstractCegarLoop]: Abstraction has 3586 states and 9647 transitions. [2021-10-13 22:38:38,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:38,174 INFO L276 IsEmpty]: Start isEmpty. Operand 3586 states and 9647 transitions. [2021-10-13 22:38:38,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:38,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:38,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:38,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-10-13 22:38:38,177 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:38,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:38,178 INFO L82 PathProgramCache]: Analyzing trace with hash -1307553291, now seen corresponding path program 138 times [2021-10-13 22:38:38,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:38,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738390705] [2021-10-13 22:38:38,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:38,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:38,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:38,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:38,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738390705] [2021-10-13 22:38:38,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738390705] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:38,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:38,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:38,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550886013] [2021-10-13 22:38:38,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:38,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:38,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:38,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:38,719 INFO L87 Difference]: Start difference. First operand 3586 states and 9647 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:41,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:41,330 INFO L93 Difference]: Finished difference Result 5392 states and 13801 transitions. [2021-10-13 22:38:41,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:38:41,330 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:41,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:41,336 INFO L225 Difference]: With dead ends: 5392 [2021-10-13 22:38:41,336 INFO L226 Difference]: Without dead ends: 5392 [2021-10-13 22:38:41,336 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 2212.6ms TimeCoverageRelationStatistics Valid=610, Invalid=1840, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:38:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5392 states. [2021-10-13 22:38:41,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5392 to 3648. [2021-10-13 22:38:41,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3646 states have (on average 2.6884256719692816) internal successors, (9802), 3647 states have internal predecessors, (9802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 9802 transitions. [2021-10-13 22:38:41,378 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 9802 transitions. Word has length 96 [2021-10-13 22:38:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:41,378 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 9802 transitions. [2021-10-13 22:38:41,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:41,378 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 9802 transitions. [2021-10-13 22:38:41,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:41,382 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:41,382 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:41,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-10-13 22:38:41,382 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:41,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:41,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1077515127, now seen corresponding path program 139 times [2021-10-13 22:38:41,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:41,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161205812] [2021-10-13 22:38:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:41,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:41,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:41,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161205812] [2021-10-13 22:38:41,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161205812] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:41,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:41,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:41,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32253535] [2021-10-13 22:38:41,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:41,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:41,929 INFO L87 Difference]: Start difference. First operand 3648 states and 9802 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:44,424 INFO L93 Difference]: Finished difference Result 5817 states and 14715 transitions. [2021-10-13 22:38:44,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:38:44,424 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:44,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:44,430 INFO L225 Difference]: With dead ends: 5817 [2021-10-13 22:38:44,430 INFO L226 Difference]: Without dead ends: 5817 [2021-10-13 22:38:44,430 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2108.8ms TimeCoverageRelationStatistics Valid=580, Invalid=1772, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:38:44,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5817 states. [2021-10-13 22:38:44,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5817 to 3650. [2021-10-13 22:38:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3648 states have (on average 2.6883223684210527) internal successors, (9807), 3649 states have internal predecessors, (9807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 9807 transitions. [2021-10-13 22:38:44,477 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 9807 transitions. Word has length 96 [2021-10-13 22:38:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:44,477 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 9807 transitions. [2021-10-13 22:38:44,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:44,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 9807 transitions. [2021-10-13 22:38:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:44,480 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:44,481 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:44,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-10-13 22:38:44,481 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:44,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1230241861, now seen corresponding path program 140 times [2021-10-13 22:38:44,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:44,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173994915] [2021-10-13 22:38:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:44,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:45,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:45,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173994915] [2021-10-13 22:38:45,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173994915] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:45,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:45,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:45,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252921883] [2021-10-13 22:38:45,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:45,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:45,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:45,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:45,045 INFO L87 Difference]: Start difference. First operand 3650 states and 9807 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:47,219 INFO L93 Difference]: Finished difference Result 5608 states and 14272 transitions. [2021-10-13 22:38:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:47,219 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:47,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:47,226 INFO L225 Difference]: With dead ends: 5608 [2021-10-13 22:38:47,226 INFO L226 Difference]: Without dead ends: 5608 [2021-10-13 22:38:47,226 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1904.2ms TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:47,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5608 states. [2021-10-13 22:38:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5608 to 3656. [2021-10-13 22:38:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3656 states, 3654 states have (on average 2.6880131362889985) internal successors, (9822), 3655 states have internal predecessors, (9822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3656 states to 3656 states and 9822 transitions. [2021-10-13 22:38:47,273 INFO L78 Accepts]: Start accepts. Automaton has 3656 states and 9822 transitions. Word has length 96 [2021-10-13 22:38:47,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:47,273 INFO L470 AbstractCegarLoop]: Abstraction has 3656 states and 9822 transitions. [2021-10-13 22:38:47,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:47,273 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 9822 transitions. [2021-10-13 22:38:47,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:47,277 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:47,277 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:47,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-10-13 22:38:47,277 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:47,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:47,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1912682343, now seen corresponding path program 141 times [2021-10-13 22:38:47,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:47,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145393432] [2021-10-13 22:38:47,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:47,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:47,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:47,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145393432] [2021-10-13 22:38:47,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145393432] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:47,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:47,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:47,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736110017] [2021-10-13 22:38:47,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:47,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:47,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:47,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:47,835 INFO L87 Difference]: Start difference. First operand 3656 states and 9822 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:50,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:50,054 INFO L93 Difference]: Finished difference Result 5755 states and 14583 transitions. [2021-10-13 22:38:50,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:50,055 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:50,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:50,061 INFO L225 Difference]: With dead ends: 5755 [2021-10-13 22:38:50,061 INFO L226 Difference]: Without dead ends: 5755 [2021-10-13 22:38:50,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1913.5ms TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:50,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5755 states. [2021-10-13 22:38:50,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5755 to 3654. [2021-10-13 22:38:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3654 states, 3652 states have (on average 2.6881161007667034) internal successors, (9817), 3653 states have internal predecessors, (9817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3654 states to 3654 states and 9817 transitions. [2021-10-13 22:38:50,124 INFO L78 Accepts]: Start accepts. Automaton has 3654 states and 9817 transitions. Word has length 96 [2021-10-13 22:38:50,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:50,124 INFO L470 AbstractCegarLoop]: Abstraction has 3654 states and 9817 transitions. [2021-10-13 22:38:50,124 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 9817 transitions. [2021-10-13 22:38:50,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:50,128 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:50,128 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:50,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-10-13 22:38:50,128 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:50,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:50,129 INFO L82 PathProgramCache]: Analyzing trace with hash -178756607, now seen corresponding path program 142 times [2021-10-13 22:38:50,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:50,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506434633] [2021-10-13 22:38:50,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:50,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:50,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:50,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:50,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506434633] [2021-10-13 22:38:50,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506434633] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:50,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:50,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:50,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899117545] [2021-10-13 22:38:50,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:50,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:50,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:50,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:50,689 INFO L87 Difference]: Start difference. First operand 3654 states and 9817 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:53,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:53,207 INFO L93 Difference]: Finished difference Result 5677 states and 14425 transitions. [2021-10-13 22:38:53,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:38:53,208 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:53,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:53,214 INFO L225 Difference]: With dead ends: 5677 [2021-10-13 22:38:53,214 INFO L226 Difference]: Without dead ends: 5677 [2021-10-13 22:38:53,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2095.7ms TimeCoverageRelationStatistics Valid=551, Invalid=1705, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:38:53,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5677 states. [2021-10-13 22:38:53,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5677 to 3646. [2021-10-13 22:38:53,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3644 states have (on average 2.688529088913282) internal successors, (9797), 3645 states have internal predecessors, (9797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 9797 transitions. [2021-10-13 22:38:53,254 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 9797 transitions. Word has length 96 [2021-10-13 22:38:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:53,254 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 9797 transitions. [2021-10-13 22:38:53,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 9797 transitions. [2021-10-13 22:38:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:53,257 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:53,257 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] [2021-10-13 22:38:53,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-10-13 22:38:53,257 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:53,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:53,258 INFO L82 PathProgramCache]: Analyzing trace with hash -2069955885, now seen corresponding path program 143 times [2021-10-13 22:38:53,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:53,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30565536] [2021-10-13 22:38:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:53,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:53,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:53,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:53,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30565536] [2021-10-13 22:38:53,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30565536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:53,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:53,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:53,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445131021] [2021-10-13 22:38:53,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:53,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:53,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:53,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:53,803 INFO L87 Difference]: Start difference. First operand 3646 states and 9797 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:56,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:56,341 INFO L93 Difference]: Finished difference Result 5443 states and 13906 transitions. [2021-10-13 22:38:56,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:38:56,342 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:56,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:56,347 INFO L225 Difference]: With dead ends: 5443 [2021-10-13 22:38:56,347 INFO L226 Difference]: Without dead ends: 5443 [2021-10-13 22:38:56,348 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2146.8ms TimeCoverageRelationStatistics Valid=580, Invalid=1772, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:38:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5443 states. [2021-10-13 22:38:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5443 to 3644. [2021-10-13 22:38:56,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 3642 states have (on average 2.6886326194398684) internal successors, (9792), 3643 states have internal predecessors, (9792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:56,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 9792 transitions. [2021-10-13 22:38:56,391 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 9792 transitions. Word has length 96 [2021-10-13 22:38:56,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:56,391 INFO L470 AbstractCegarLoop]: Abstraction has 3644 states and 9792 transitions. [2021-10-13 22:38:56,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:56,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 9792 transitions. [2021-10-13 22:38:56,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:56,394 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:56,394 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:56,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-10-13 22:38:56,394 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:56,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:56,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1917229151, now seen corresponding path program 144 times [2021-10-13 22:38:56,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:56,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377743184] [2021-10-13 22:38:56,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:56,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:56,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:56,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:56,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377743184] [2021-10-13 22:38:56,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377743184] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:56,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:56,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:56,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745753333] [2021-10-13 22:38:56,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:56,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:56,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:56,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:56,965 INFO L87 Difference]: Start difference. First operand 3644 states and 9792 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:38:59,320 INFO L93 Difference]: Finished difference Result 5762 states and 14585 transitions. [2021-10-13 22:38:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:38:59,320 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:38:59,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:38:59,326 INFO L225 Difference]: With dead ends: 5762 [2021-10-13 22:38:59,326 INFO L226 Difference]: Without dead ends: 5762 [2021-10-13 22:38:59,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1928.4ms TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:38:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5762 states. [2021-10-13 22:38:59,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5762 to 3650. [2021-10-13 22:38:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3648 states have (on average 2.6883223684210527) internal successors, (9807), 3649 states have internal predecessors, (9807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 9807 transitions. [2021-10-13 22:38:59,373 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 9807 transitions. Word has length 96 [2021-10-13 22:38:59,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:38:59,373 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 9807 transitions. [2021-10-13 22:38:59,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:38:59,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 9807 transitions. [2021-10-13 22:38:59,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:38:59,377 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:38:59,377 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:38:59,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-10-13 22:38:59,377 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:38:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:38:59,377 INFO L82 PathProgramCache]: Analyzing trace with hash -765186059, now seen corresponding path program 145 times [2021-10-13 22:38:59,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:38:59,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034432813] [2021-10-13 22:38:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:38:59,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:38:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:38:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:38:59,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:38:59,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034432813] [2021-10-13 22:38:59,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034432813] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:38:59,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:38:59,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:38:59,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461775981] [2021-10-13 22:38:59,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:38:59,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:38:59,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:38:59,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:38:59,940 INFO L87 Difference]: Start difference. First operand 3650 states and 9807 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:02,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:02,208 INFO L93 Difference]: Finished difference Result 5909 states and 14896 transitions. [2021-10-13 22:39:02,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:39:02,229 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:02,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:02,235 INFO L225 Difference]: With dead ends: 5909 [2021-10-13 22:39:02,236 INFO L226 Difference]: Without dead ends: 5909 [2021-10-13 22:39:02,236 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1980.5ms TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:39:02,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5909 states. [2021-10-13 22:39:02,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5909 to 3648. [2021-10-13 22:39:02,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3646 states have (on average 2.6884256719692816) internal successors, (9802), 3647 states have internal predecessors, (9802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 9802 transitions. [2021-10-13 22:39:02,279 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 9802 transitions. Word has length 96 [2021-10-13 22:39:02,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:02,279 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 9802 transitions. [2021-10-13 22:39:02,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:02,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 9802 transitions. [2021-10-13 22:39:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:02,282 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:02,282 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] [2021-10-13 22:39:02,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-10-13 22:39:02,282 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:02,283 INFO L82 PathProgramCache]: Analyzing trace with hash 968739677, now seen corresponding path program 146 times [2021-10-13 22:39:02,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:02,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904551904] [2021-10-13 22:39:02,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:02,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:02,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:02,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:02,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904551904] [2021-10-13 22:39:02,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904551904] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:02,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:02,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:02,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035484692] [2021-10-13 22:39:02,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:02,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:02,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:02,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:02,830 INFO L87 Difference]: Start difference. First operand 3648 states and 9802 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:05,294 INFO L93 Difference]: Finished difference Result 5831 states and 14738 transitions. [2021-10-13 22:39:05,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:39:05,294 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:05,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:05,300 INFO L225 Difference]: With dead ends: 5831 [2021-10-13 22:39:05,300 INFO L226 Difference]: Without dead ends: 5831 [2021-10-13 22:39:05,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2054.9ms TimeCoverageRelationStatistics Valid=551, Invalid=1705, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:39:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2021-10-13 22:39:05,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 3642. [2021-10-13 22:39:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3642 states, 3640 states have (on average 2.688736263736264) internal successors, (9787), 3641 states have internal predecessors, (9787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3642 states to 3642 states and 9787 transitions. [2021-10-13 22:39:05,343 INFO L78 Accepts]: Start accepts. Automaton has 3642 states and 9787 transitions. Word has length 96 [2021-10-13 22:39:05,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:05,343 INFO L470 AbstractCegarLoop]: Abstraction has 3642 states and 9787 transitions. [2021-10-13 22:39:05,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 3642 states and 9787 transitions. [2021-10-13 22:39:05,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:05,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:05,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:05,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-10-13 22:39:05,346 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:05,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:05,346 INFO L82 PathProgramCache]: Analyzing trace with hash -135003461, now seen corresponding path program 147 times [2021-10-13 22:39:05,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:05,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383047673] [2021-10-13 22:39:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:05,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:05,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:05,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:05,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383047673] [2021-10-13 22:39:05,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383047673] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:05,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:05,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:05,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868874042] [2021-10-13 22:39:05,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:05,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:05,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:05,906 INFO L87 Difference]: Start difference. First operand 3642 states and 9787 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:08,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:08,267 INFO L93 Difference]: Finished difference Result 5238 states and 13473 transitions. [2021-10-13 22:39:08,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:39:08,267 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:08,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:08,272 INFO L225 Difference]: With dead ends: 5238 [2021-10-13 22:39:08,272 INFO L226 Difference]: Without dead ends: 5238 [2021-10-13 22:39:08,273 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2078.6ms TimeCoverageRelationStatistics Valid=549, Invalid=1707, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:39:08,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2021-10-13 22:39:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 3630. [2021-10-13 22:39:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 3628 states have (on average 2.6893605292171996) internal successors, (9757), 3629 states have internal predecessors, (9757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 9757 transitions. [2021-10-13 22:39:08,313 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 9757 transitions. Word has length 96 [2021-10-13 22:39:08,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:08,313 INFO L470 AbstractCegarLoop]: Abstraction has 3630 states and 9757 transitions. [2021-10-13 22:39:08,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:08,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 9757 transitions. [2021-10-13 22:39:08,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:08,317 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:08,317 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:08,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-10-13 22:39:08,317 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:08,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:08,317 INFO L82 PathProgramCache]: Analyzing trace with hash -373167735, now seen corresponding path program 148 times [2021-10-13 22:39:08,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:08,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552245322] [2021-10-13 22:39:08,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:08,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:08,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:08,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:08,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552245322] [2021-10-13 22:39:08,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552245322] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:08,892 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:08,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:08,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716509755] [2021-10-13 22:39:08,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:08,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:08,892 INFO L87 Difference]: Start difference. First operand 3630 states and 9757 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:11,188 INFO L93 Difference]: Finished difference Result 5622 states and 14271 transitions. [2021-10-13 22:39:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:39:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:11,196 INFO L225 Difference]: With dead ends: 5622 [2021-10-13 22:39:11,196 INFO L226 Difference]: Without dead ends: 5622 [2021-10-13 22:39:11,196 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1941.7ms TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:39:11,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5622 states. [2021-10-13 22:39:11,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5622 to 3632. [2021-10-13 22:39:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3632 states, 3630 states have (on average 2.6892561983471075) internal successors, (9762), 3631 states have internal predecessors, (9762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:11,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3632 states to 3632 states and 9762 transitions. [2021-10-13 22:39:11,243 INFO L78 Accepts]: Start accepts. Automaton has 3632 states and 9762 transitions. Word has length 96 [2021-10-13 22:39:11,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:11,243 INFO L470 AbstractCegarLoop]: Abstraction has 3632 states and 9762 transitions. [2021-10-13 22:39:11,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:11,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3632 states and 9762 transitions. [2021-10-13 22:39:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:11,247 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:11,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:11,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-10-13 22:39:11,247 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:11,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:11,247 INFO L82 PathProgramCache]: Analyzing trace with hash 778875357, now seen corresponding path program 149 times [2021-10-13 22:39:11,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:11,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211905807] [2021-10-13 22:39:11,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:11,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:11,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:11,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:11,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211905807] [2021-10-13 22:39:11,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211905807] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:11,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:11,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:11,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438858447] [2021-10-13 22:39:11,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:11,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:11,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:11,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:11,803 INFO L87 Difference]: Start difference. First operand 3632 states and 9762 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:14,043 INFO L93 Difference]: Finished difference Result 5387 states and 13789 transitions. [2021-10-13 22:39:14,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:39:14,044 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:14,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:14,048 INFO L225 Difference]: With dead ends: 5387 [2021-10-13 22:39:14,048 INFO L226 Difference]: Without dead ends: 5387 [2021-10-13 22:39:14,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1930.8ms TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:39:14,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5387 states. [2021-10-13 22:39:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5387 to 3626. [2021-10-13 22:39:14,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3624 states have (on average 2.689569536423841) internal successors, (9747), 3625 states have internal predecessors, (9747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 9747 transitions. [2021-10-13 22:39:14,087 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 9747 transitions. Word has length 96 [2021-10-13 22:39:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:14,087 INFO L470 AbstractCegarLoop]: Abstraction has 3626 states and 9747 transitions. [2021-10-13 22:39:14,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:14,087 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 9747 transitions. [2021-10-13 22:39:14,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:14,090 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:14,090 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:14,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-10-13 22:39:14,090 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:14,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:14,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2012495615, now seen corresponding path program 150 times [2021-10-13 22:39:14,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:14,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233956675] [2021-10-13 22:39:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:14,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:14,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:14,637 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233956675] [2021-10-13 22:39:14,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233956675] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:14,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:14,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:14,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777470491] [2021-10-13 22:39:14,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:14,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:14,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:14,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:14,638 INFO L87 Difference]: Start difference. First operand 3626 states and 9747 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:16,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:16,876 INFO L93 Difference]: Finished difference Result 5538 states and 14098 transitions. [2021-10-13 22:39:16,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:39:16,876 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:16,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:16,882 INFO L225 Difference]: With dead ends: 5538 [2021-10-13 22:39:16,882 INFO L226 Difference]: Without dead ends: 5538 [2021-10-13 22:39:16,889 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1919.1ms TimeCoverageRelationStatistics Valid=517, Invalid=1645, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:39:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2021-10-13 22:39:16,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 3620. [2021-10-13 22:39:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3620 states, 3618 states have (on average 2.6898839137645107) internal successors, (9732), 3619 states have internal predecessors, (9732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3620 states to 3620 states and 9732 transitions. [2021-10-13 22:39:16,931 INFO L78 Accepts]: Start accepts. Automaton has 3620 states and 9732 transitions. Word has length 96 [2021-10-13 22:39:16,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:16,931 INFO L470 AbstractCegarLoop]: Abstraction has 3620 states and 9732 transitions. [2021-10-13 22:39:16,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:16,932 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 9732 transitions. [2021-10-13 22:39:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:16,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:16,935 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] [2021-10-13 22:39:16,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-10-13 22:39:16,935 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:16,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:16,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1130428589, now seen corresponding path program 151 times [2021-10-13 22:39:16,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:16,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153046276] [2021-10-13 22:39:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:16,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:17,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:17,496 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:17,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153046276] [2021-10-13 22:39:17,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153046276] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:17,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:17,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:17,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301350973] [2021-10-13 22:39:17,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:17,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:17,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:17,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:17,497 INFO L87 Difference]: Start difference. First operand 3620 states and 9732 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:19,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:19,920 INFO L93 Difference]: Finished difference Result 5711 states and 14465 transitions. [2021-10-13 22:39:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:39:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:19,927 INFO L225 Difference]: With dead ends: 5711 [2021-10-13 22:39:19,927 INFO L226 Difference]: Without dead ends: 5711 [2021-10-13 22:39:19,927 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 1970.6ms TimeCoverageRelationStatistics Valid=518, Invalid=1644, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:39:19,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2021-10-13 22:39:19,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 3618. [2021-10-13 22:39:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3618 states, 3616 states have (on average 2.6899889380530975) internal successors, (9727), 3617 states have internal predecessors, (9727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:19,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3618 states to 3618 states and 9727 transitions. [2021-10-13 22:39:19,971 INFO L78 Accepts]: Start accepts. Automaton has 3618 states and 9727 transitions. Word has length 96 [2021-10-13 22:39:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:19,972 INFO L470 AbstractCegarLoop]: Abstraction has 3618 states and 9727 transitions. [2021-10-13 22:39:19,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 9727 transitions. [2021-10-13 22:39:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:19,975 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:19,975 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] [2021-10-13 22:39:19,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-10-13 22:39:19,975 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:19,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:19,975 INFO L82 PathProgramCache]: Analyzing trace with hash 603497147, now seen corresponding path program 152 times [2021-10-13 22:39:19,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:19,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249494362] [2021-10-13 22:39:19,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:19,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:19,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:20,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:20,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249494362] [2021-10-13 22:39:20,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249494362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:20,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:20,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:20,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829192130] [2021-10-13 22:39:20,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:20,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:20,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:20,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:20,542 INFO L87 Difference]: Start difference. First operand 3618 states and 9727 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:22,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:22,847 INFO L93 Difference]: Finished difference Result 5294 states and 13604 transitions. [2021-10-13 22:39:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:39:22,848 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:22,854 INFO L225 Difference]: With dead ends: 5294 [2021-10-13 22:39:22,854 INFO L226 Difference]: Without dead ends: 5294 [2021-10-13 22:39:22,854 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2042.3ms TimeCoverageRelationStatistics Valid=551, Invalid=1705, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:39:22,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5294 states. [2021-10-13 22:39:22,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5294 to 3590. [2021-10-13 22:39:22,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3590 states, 3588 states have (on average 2.6914715719063547) internal successors, (9657), 3589 states have internal predecessors, (9657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:22,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3590 states to 3590 states and 9657 transitions. [2021-10-13 22:39:22,908 INFO L78 Accepts]: Start accepts. Automaton has 3590 states and 9657 transitions. Word has length 96 [2021-10-13 22:39:22,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:22,908 INFO L470 AbstractCegarLoop]: Abstraction has 3590 states and 9657 transitions. [2021-10-13 22:39:22,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3590 states and 9657 transitions. [2021-10-13 22:39:22,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:22,911 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:22,911 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] [2021-10-13 22:39:22,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-10-13 22:39:22,911 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:22,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:22,912 INFO L82 PathProgramCache]: Analyzing trace with hash 229140107, now seen corresponding path program 153 times [2021-10-13 22:39:22,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:22,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77783843] [2021-10-13 22:39:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:22,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:23,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:23,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:23,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77783843] [2021-10-13 22:39:23,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77783843] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:23,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:23,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:23,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140372559] [2021-10-13 22:39:23,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:23,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:23,482 INFO L87 Difference]: Start difference. First operand 3590 states and 9657 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:26,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:26,821 INFO L93 Difference]: Finished difference Result 9914 states and 25594 transitions. [2021-10-13 22:39:26,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:39:26,821 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:26,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:26,833 INFO L225 Difference]: With dead ends: 9914 [2021-10-13 22:39:26,833 INFO L226 Difference]: Without dead ends: 9914 [2021-10-13 22:39:26,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 2940.6ms TimeCoverageRelationStatistics Valid=825, Invalid=2255, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:39:26,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2021-10-13 22:39:26,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 3794. [2021-10-13 22:39:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 3792 states have (on average 2.706487341772152) internal successors, (10263), 3793 states have internal predecessors, (10263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 10263 transitions. [2021-10-13 22:39:26,899 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 10263 transitions. Word has length 96 [2021-10-13 22:39:26,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:26,899 INFO L470 AbstractCegarLoop]: Abstraction has 3794 states and 10263 transitions. [2021-10-13 22:39:26,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 10263 transitions. [2021-10-13 22:39:26,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:26,902 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:26,902 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:26,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-10-13 22:39:26,902 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:26,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:26,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1204591799, now seen corresponding path program 154 times [2021-10-13 22:39:26,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:26,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881149338] [2021-10-13 22:39:26,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:26,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:27,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:27,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881149338] [2021-10-13 22:39:27,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881149338] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:27,463 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:27,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:27,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465911758] [2021-10-13 22:39:27,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:27,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:27,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:27,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:27,463 INFO L87 Difference]: Start difference. First operand 3794 states and 10263 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:31,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:31,351 INFO L93 Difference]: Finished difference Result 9359 states and 24424 transitions. [2021-10-13 22:39:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:39:31,351 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:31,363 INFO L225 Difference]: With dead ends: 9359 [2021-10-13 22:39:31,363 INFO L226 Difference]: Without dead ends: 9359 [2021-10-13 22:39:31,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 335 ImplicationChecksByTransitivity, 3327.6ms TimeCoverageRelationStatistics Valid=922, Invalid=2270, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:39:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9359 states. [2021-10-13 22:39:31,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9359 to 3722. [2021-10-13 22:39:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3722 states, 3720 states have (on average 2.700806451612903) internal successors, (10047), 3721 states have internal predecessors, (10047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3722 states to 3722 states and 10047 transitions. [2021-10-13 22:39:31,437 INFO L78 Accepts]: Start accepts. Automaton has 3722 states and 10047 transitions. Word has length 96 [2021-10-13 22:39:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:31,437 INFO L470 AbstractCegarLoop]: Abstraction has 3722 states and 10047 transitions. [2021-10-13 22:39:31,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3722 states and 10047 transitions. [2021-10-13 22:39:31,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:31,440 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:31,440 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:31,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-10-13 22:39:31,440 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:31,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:31,441 INFO L82 PathProgramCache]: Analyzing trace with hash -888435715, now seen corresponding path program 155 times [2021-10-13 22:39:31,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:31,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813823785] [2021-10-13 22:39:31,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:31,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:31,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:31,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:31,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813823785] [2021-10-13 22:39:31,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813823785] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:31,998 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:31,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:31,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518089663] [2021-10-13 22:39:31,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:31,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:31,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:31,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:31,999 INFO L87 Difference]: Start difference. First operand 3722 states and 10047 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:36,303 INFO L93 Difference]: Finished difference Result 8969 states and 23401 transitions. [2021-10-13 22:39:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:39:36,303 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:36,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:36,312 INFO L225 Difference]: With dead ends: 8969 [2021-10-13 22:39:36,312 INFO L226 Difference]: Without dead ends: 8969 [2021-10-13 22:39:36,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 3674.7ms TimeCoverageRelationStatistics Valid=943, Invalid=2363, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:39:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8969 states. [2021-10-13 22:39:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8969 to 3710. [2021-10-13 22:39:36,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3710 states, 3708 states have (on average 2.6998381877022655) internal successors, (10011), 3709 states have internal predecessors, (10011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3710 states to 3710 states and 10011 transitions. [2021-10-13 22:39:36,366 INFO L78 Accepts]: Start accepts. Automaton has 3710 states and 10011 transitions. Word has length 96 [2021-10-13 22:39:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:36,366 INFO L470 AbstractCegarLoop]: Abstraction has 3710 states and 10011 transitions. [2021-10-13 22:39:36,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:36,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3710 states and 10011 transitions. [2021-10-13 22:39:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:36,369 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:36,369 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:36,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-10-13 22:39:36,369 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:36,370 INFO L82 PathProgramCache]: Analyzing trace with hash 338955673, now seen corresponding path program 156 times [2021-10-13 22:39:36,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:36,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732834011] [2021-10-13 22:39:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:36,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:36,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:36,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:36,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732834011] [2021-10-13 22:39:36,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732834011] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:36,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:36,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:36,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881607533] [2021-10-13 22:39:36,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:36,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:36,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:36,915 INFO L87 Difference]: Start difference. First operand 3710 states and 10011 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:40,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:40,964 INFO L93 Difference]: Finished difference Result 9562 states and 24773 transitions. [2021-10-13 22:39:40,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-13 22:39:40,964 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:40,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:40,975 INFO L225 Difference]: With dead ends: 9562 [2021-10-13 22:39:40,975 INFO L226 Difference]: Without dead ends: 9562 [2021-10-13 22:39:40,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 3505.6ms TimeCoverageRelationStatistics Valid=925, Invalid=2381, Unknown=0, NotChecked=0, Total=3306 [2021-10-13 22:39:40,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2021-10-13 22:39:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 3698. [2021-10-13 22:39:41,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3698 states, 3696 states have (on average 2.6988636363636362) internal successors, (9975), 3697 states have internal predecessors, (9975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:41,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3698 states to 3698 states and 9975 transitions. [2021-10-13 22:39:41,036 INFO L78 Accepts]: Start accepts. Automaton has 3698 states and 9975 transitions. Word has length 96 [2021-10-13 22:39:41,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:41,036 INFO L470 AbstractCegarLoop]: Abstraction has 3698 states and 9975 transitions. [2021-10-13 22:39:41,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3698 states and 9975 transitions. [2021-10-13 22:39:41,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:41,039 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:41,039 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] [2021-10-13 22:39:41,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-10-13 22:39:41,039 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:41,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:41,040 INFO L82 PathProgramCache]: Analyzing trace with hash -440190049, now seen corresponding path program 157 times [2021-10-13 22:39:41,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:41,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934274913] [2021-10-13 22:39:41,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:41,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:41,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:41,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934274913] [2021-10-13 22:39:41,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934274913] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:41,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:41,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:41,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693514044] [2021-10-13 22:39:41,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:41,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:41,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:41,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:41,677 INFO L87 Difference]: Start difference. First operand 3698 states and 9975 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:45,601 INFO L93 Difference]: Finished difference Result 9581 states and 24816 transitions. [2021-10-13 22:39:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-13 22:39:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:45,612 INFO L225 Difference]: With dead ends: 9581 [2021-10-13 22:39:45,612 INFO L226 Difference]: Without dead ends: 9581 [2021-10-13 22:39:45,613 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 3298.5ms TimeCoverageRelationStatistics Valid=876, Invalid=2316, Unknown=0, NotChecked=0, Total=3192 [2021-10-13 22:39:45,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9581 states. [2021-10-13 22:39:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9581 to 3650. [2021-10-13 22:39:45,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3650 states, 3648 states have (on average 2.6965460526315788) internal successors, (9837), 3649 states have internal predecessors, (9837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 9837 transitions. [2021-10-13 22:39:45,674 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 9837 transitions. Word has length 96 [2021-10-13 22:39:45,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:45,674 INFO L470 AbstractCegarLoop]: Abstraction has 3650 states and 9837 transitions. [2021-10-13 22:39:45,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:45,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 9837 transitions. [2021-10-13 22:39:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:45,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:45,678 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] [2021-10-13 22:39:45,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-10-13 22:39:45,678 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:45,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:45,678 INFO L82 PathProgramCache]: Analyzing trace with hash -667607171, now seen corresponding path program 158 times [2021-10-13 22:39:45,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:45,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983530349] [2021-10-13 22:39:45,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:45,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:46,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:46,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983530349] [2021-10-13 22:39:46,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983530349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:46,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:46,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:46,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690812433] [2021-10-13 22:39:46,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:46,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:46,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:46,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:46,238 INFO L87 Difference]: Start difference. First operand 3650 states and 9837 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:48,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:48,907 INFO L93 Difference]: Finished difference Result 8367 states and 21820 transitions. [2021-10-13 22:39:48,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:39:48,907 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:48,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:48,916 INFO L225 Difference]: With dead ends: 8367 [2021-10-13 22:39:48,917 INFO L226 Difference]: Without dead ends: 8367 [2021-10-13 22:39:48,917 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 2292.4ms TimeCoverageRelationStatistics Valid=639, Invalid=1811, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:39:48,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8367 states. [2021-10-13 22:39:48,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8367 to 4264. [2021-10-13 22:39:48,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.7273580478648523) internal successors, (11624), 4263 states have internal predecessors, (11624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11624 transitions. [2021-10-13 22:39:48,985 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11624 transitions. Word has length 96 [2021-10-13 22:39:48,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:48,986 INFO L470 AbstractCegarLoop]: Abstraction has 4264 states and 11624 transitions. [2021-10-13 22:39:48,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:48,986 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11624 transitions. [2021-10-13 22:39:48,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:48,990 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:48,990 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:48,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-10-13 22:39:48,990 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:48,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:48,990 INFO L82 PathProgramCache]: Analyzing trace with hash 159479053, now seen corresponding path program 159 times [2021-10-13 22:39:48,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:48,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459209311] [2021-10-13 22:39:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:48,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:49,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:49,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459209311] [2021-10-13 22:39:49,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459209311] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:49,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:49,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:49,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057392388] [2021-10-13 22:39:49,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:49,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:49,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:49,551 INFO L87 Difference]: Start difference. First operand 4264 states and 11624 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:52,267 INFO L93 Difference]: Finished difference Result 10848 states and 28260 transitions. [2021-10-13 22:39:52,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:39:52,267 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:52,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:52,281 INFO L225 Difference]: With dead ends: 10848 [2021-10-13 22:39:52,281 INFO L226 Difference]: Without dead ends: 10848 [2021-10-13 22:39:52,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2307.1ms TimeCoverageRelationStatistics Valid=624, Invalid=1728, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:39:52,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10848 states. [2021-10-13 22:39:52,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10848 to 4312. [2021-10-13 22:39:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.7303944315545245) internal successors, (11768), 4311 states have internal predecessors, (11768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11768 transitions. [2021-10-13 22:39:52,367 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11768 transitions. Word has length 96 [2021-10-13 22:39:52,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:52,367 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 11768 transitions. [2021-10-13 22:39:52,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:52,367 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11768 transitions. [2021-10-13 22:39:52,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:52,371 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:52,371 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:52,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-10-13 22:39:52,371 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:52,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1274252853, now seen corresponding path program 160 times [2021-10-13 22:39:52,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:52,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757664145] [2021-10-13 22:39:52,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:52,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:52,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:52,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:52,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:52,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757664145] [2021-10-13 22:39:52,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757664145] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:52,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:52,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:52,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30435371] [2021-10-13 22:39:52,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:52,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:52,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:52,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:52,938 INFO L87 Difference]: Start difference. First operand 4312 states and 11768 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:56,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:39:56,827 INFO L93 Difference]: Finished difference Result 12380 states and 32282 transitions. [2021-10-13 22:39:56,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:39:56,828 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:39:56,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:39:56,842 INFO L225 Difference]: With dead ends: 12380 [2021-10-13 22:39:56,842 INFO L226 Difference]: Without dead ends: 12380 [2021-10-13 22:39:56,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 3258.3ms TimeCoverageRelationStatistics Valid=869, Invalid=2101, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:39:56,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12380 states. [2021-10-13 22:39:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12380 to 4336. [2021-10-13 22:39:56,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.731887401938163) internal successors, (11840), 4335 states have internal predecessors, (11840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11840 transitions. [2021-10-13 22:39:56,921 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11840 transitions. Word has length 96 [2021-10-13 22:39:56,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:39:56,921 INFO L470 AbstractCegarLoop]: Abstraction has 4336 states and 11840 transitions. [2021-10-13 22:39:56,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:39:56,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11840 transitions. [2021-10-13 22:39:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:39:56,925 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:39:56,925 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:39:56,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-10-13 22:39:56,925 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:39:56,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:39:56,925 INFO L82 PathProgramCache]: Analyzing trace with hash -958096769, now seen corresponding path program 161 times [2021-10-13 22:39:56,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:39:56,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424633995] [2021-10-13 22:39:56,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:39:56,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:39:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:39:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:39:57,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:39:57,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424633995] [2021-10-13 22:39:57,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424633995] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:39:57,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:39:57,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:39:57,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390239587] [2021-10-13 22:39:57,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:39:57,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:39:57,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:39:57,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:39:57,500 INFO L87 Difference]: Start difference. First operand 4336 states and 11840 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:01,589 INFO L93 Difference]: Finished difference Result 11990 states and 31259 transitions. [2021-10-13 22:40:01,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:40:01,589 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:01,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:01,603 INFO L225 Difference]: With dead ends: 11990 [2021-10-13 22:40:01,603 INFO L226 Difference]: Without dead ends: 11990 [2021-10-13 22:40:01,604 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3565.4ms TimeCoverageRelationStatistics Valid=889, Invalid=2191, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:40:01,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11990 states. [2021-10-13 22:40:01,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11990 to 4324. [2021-10-13 22:40:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.7311429893567793) internal successors, (11804), 4323 states have internal predecessors, (11804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:01,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11804 transitions. [2021-10-13 22:40:01,692 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11804 transitions. Word has length 96 [2021-10-13 22:40:01,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:01,692 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 11804 transitions. [2021-10-13 22:40:01,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:01,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11804 transitions. [2021-10-13 22:40:01,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:01,696 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:01,696 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:01,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-10-13 22:40:01,697 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:01,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:01,697 INFO L82 PathProgramCache]: Analyzing trace with hash 269294619, now seen corresponding path program 162 times [2021-10-13 22:40:01,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:01,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616179365] [2021-10-13 22:40:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:01,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:02,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:02,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:02,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616179365] [2021-10-13 22:40:02,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616179365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:02,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:02,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:02,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177428213] [2021-10-13 22:40:02,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:02,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:02,242 INFO L87 Difference]: Start difference. First operand 4324 states and 11804 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:06,183 INFO L93 Difference]: Finished difference Result 12583 states and 32631 transitions. [2021-10-13 22:40:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:40:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:06,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:06,200 INFO L225 Difference]: With dead ends: 12583 [2021-10-13 22:40:06,200 INFO L226 Difference]: Without dead ends: 12583 [2021-10-13 22:40:06,200 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 3403.8ms TimeCoverageRelationStatistics Valid=872, Invalid=2208, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:40:06,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12583 states. [2021-10-13 22:40:06,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12583 to 4312. [2021-10-13 22:40:06,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.7303944315545245) internal successors, (11768), 4311 states have internal predecessors, (11768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:06,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11768 transitions. [2021-10-13 22:40:06,311 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11768 transitions. Word has length 96 [2021-10-13 22:40:06,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:06,311 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 11768 transitions. [2021-10-13 22:40:06,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:06,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11768 transitions. [2021-10-13 22:40:06,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:06,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:06,315 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:06,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-10-13 22:40:06,315 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:06,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:06,316 INFO L82 PathProgramCache]: Analyzing trace with hash -509851103, now seen corresponding path program 163 times [2021-10-13 22:40:06,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:06,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932495767] [2021-10-13 22:40:06,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:06,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:06,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:06,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:06,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932495767] [2021-10-13 22:40:06,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932495767] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:06,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:06,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:06,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476717072] [2021-10-13 22:40:06,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:06,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:06,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:06,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:06,875 INFO L87 Difference]: Start difference. First operand 4312 states and 11768 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:10,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:10,591 INFO L93 Difference]: Finished difference Result 12602 states and 32674 transitions. [2021-10-13 22:40:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:40:10,591 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:10,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:10,605 INFO L225 Difference]: With dead ends: 12602 [2021-10-13 22:40:10,605 INFO L226 Difference]: Without dead ends: 12602 [2021-10-13 22:40:10,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 3205.8ms TimeCoverageRelationStatistics Valid=824, Invalid=2146, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:40:10,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12602 states. [2021-10-13 22:40:10,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12602 to 4276. [2021-10-13 22:40:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4276 states, 4274 states have (on average 2.7281235376696302) internal successors, (11660), 4275 states have internal predecessors, (11660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:10,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4276 states to 4276 states and 11660 transitions. [2021-10-13 22:40:10,677 INFO L78 Accepts]: Start accepts. Automaton has 4276 states and 11660 transitions. Word has length 96 [2021-10-13 22:40:10,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:10,677 INFO L470 AbstractCegarLoop]: Abstraction has 4276 states and 11660 transitions. [2021-10-13 22:40:10,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:10,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4276 states and 11660 transitions. [2021-10-13 22:40:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:10,681 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:10,681 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:10,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-10-13 22:40:10,681 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:10,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:10,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1964417153, now seen corresponding path program 164 times [2021-10-13 22:40:10,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:10,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008255901] [2021-10-13 22:40:10,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:10,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:11,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:11,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:11,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008255901] [2021-10-13 22:40:11,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008255901] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:11,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:11,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:11,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323367024] [2021-10-13 22:40:11,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:11,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:11,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:11,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:11,223 INFO L87 Difference]: Start difference. First operand 4276 states and 11660 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:13,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:13,860 INFO L93 Difference]: Finished difference Result 9956 states and 25906 transitions. [2021-10-13 22:40:13,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:40:13,860 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:13,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:13,872 INFO L225 Difference]: With dead ends: 9956 [2021-10-13 22:40:13,872 INFO L226 Difference]: Without dead ends: 9956 [2021-10-13 22:40:13,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2220.2ms TimeCoverageRelationStatistics Valid=609, Invalid=1743, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:40:13,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9956 states. [2021-10-13 22:40:13,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9956 to 4362. [2021-10-13 22:40:13,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4362 states, 4360 states have (on average 2.731880733944954) internal successors, (11911), 4361 states have internal predecessors, (11911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:13,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4362 states to 4362 states and 11911 transitions. [2021-10-13 22:40:13,967 INFO L78 Accepts]: Start accepts. Automaton has 4362 states and 11911 transitions. Word has length 96 [2021-10-13 22:40:13,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:13,967 INFO L470 AbstractCegarLoop]: Abstraction has 4362 states and 11911 transitions. [2021-10-13 22:40:13,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:13,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4362 states and 11911 transitions. [2021-10-13 22:40:13,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:13,973 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:13,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:13,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-10-13 22:40:13,973 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:13,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:13,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1811690419, now seen corresponding path program 165 times [2021-10-13 22:40:13,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:13,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783522193] [2021-10-13 22:40:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:13,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:14,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:14,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:14,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783522193] [2021-10-13 22:40:14,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783522193] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:14,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:14,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:14,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104318768] [2021-10-13 22:40:14,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:14,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:14,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:14,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:14,527 INFO L87 Difference]: Start difference. First operand 4362 states and 11911 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:16,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:16,967 INFO L93 Difference]: Finished difference Result 9978 states and 25964 transitions. [2021-10-13 22:40:16,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:16,967 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:16,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:16,979 INFO L225 Difference]: With dead ends: 9978 [2021-10-13 22:40:16,979 INFO L226 Difference]: Without dead ends: 9978 [2021-10-13 22:40:16,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2096.0ms TimeCoverageRelationStatistics Valid=546, Invalid=1616, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:16,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9978 states. [2021-10-13 22:40:17,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9978 to 4368. [2021-10-13 22:40:17,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4366 states have (on average 2.7315620705451216) internal successors, (11926), 4367 states have internal predecessors, (11926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11926 transitions. [2021-10-13 22:40:17,067 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11926 transitions. Word has length 96 [2021-10-13 22:40:17,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:17,067 INFO L470 AbstractCegarLoop]: Abstraction has 4368 states and 11926 transitions. [2021-10-13 22:40:17,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:17,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11926 transitions. [2021-10-13 22:40:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:17,071 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:17,071 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:17,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-10-13 22:40:17,071 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:17,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash -659647327, now seen corresponding path program 166 times [2021-10-13 22:40:17,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:17,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098993052] [2021-10-13 22:40:17,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:17,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:17,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:17,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098993052] [2021-10-13 22:40:17,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098993052] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:17,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:17,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:17,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414591303] [2021-10-13 22:40:17,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:17,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:17,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:17,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:17,611 INFO L87 Difference]: Start difference. First operand 4368 states and 11926 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:20,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:20,092 INFO L93 Difference]: Finished difference Result 10125 states and 26275 transitions. [2021-10-13 22:40:20,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:20,092 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:20,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:20,101 INFO L225 Difference]: With dead ends: 10125 [2021-10-13 22:40:20,101 INFO L226 Difference]: Without dead ends: 10125 [2021-10-13 22:40:20,101 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2117.8ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10125 states. [2021-10-13 22:40:20,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10125 to 4366. [2021-10-13 22:40:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4366 states, 4364 states have (on average 2.73166819431714) internal successors, (11921), 4365 states have internal predecessors, (11921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:20,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 11921 transitions. [2021-10-13 22:40:20,173 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 11921 transitions. Word has length 96 [2021-10-13 22:40:20,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:20,173 INFO L470 AbstractCegarLoop]: Abstraction has 4366 states and 11921 transitions. [2021-10-13 22:40:20,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:20,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 11921 transitions. [2021-10-13 22:40:20,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:20,177 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:20,177 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:20,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-10-13 22:40:20,177 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:20,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1074278409, now seen corresponding path program 167 times [2021-10-13 22:40:20,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:20,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115047117] [2021-10-13 22:40:20,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:20,178 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:20,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:20,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:20,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115047117] [2021-10-13 22:40:20,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115047117] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:20,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:20,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:20,725 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952685055] [2021-10-13 22:40:20,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:20,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:20,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:20,726 INFO L87 Difference]: Start difference. First operand 4366 states and 11921 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:23,290 INFO L93 Difference]: Finished difference Result 10047 states and 26117 transitions. [2021-10-13 22:40:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:40:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:23,302 INFO L225 Difference]: With dead ends: 10047 [2021-10-13 22:40:23,302 INFO L226 Difference]: Without dead ends: 10047 [2021-10-13 22:40:23,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2199.8ms TimeCoverageRelationStatistics Valid=580, Invalid=1676, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:40:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10047 states. [2021-10-13 22:40:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10047 to 4360. [2021-10-13 22:40:23,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 4358 states have (on average 2.731987150068839) internal successors, (11906), 4359 states have internal predecessors, (11906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 11906 transitions. [2021-10-13 22:40:23,393 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 11906 transitions. Word has length 96 [2021-10-13 22:40:23,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:23,394 INFO L470 AbstractCegarLoop]: Abstraction has 4360 states and 11906 transitions. [2021-10-13 22:40:23,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:23,394 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 11906 transitions. [2021-10-13 22:40:23,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:23,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:23,398 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:23,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-10-13 22:40:23,398 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:23,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1493744909, now seen corresponding path program 168 times [2021-10-13 22:40:23,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:23,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829424841] [2021-10-13 22:40:23,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:23,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:23,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:23,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:23,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829424841] [2021-10-13 22:40:23,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829424841] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:23,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:23,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:23,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267612084] [2021-10-13 22:40:23,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:23,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:23,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:23,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:23,956 INFO L87 Difference]: Start difference. First operand 4360 states and 11906 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:26,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:26,704 INFO L93 Difference]: Finished difference Result 9939 states and 25989 transitions. [2021-10-13 22:40:26,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:26,705 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:26,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:26,717 INFO L225 Difference]: With dead ends: 9939 [2021-10-13 22:40:26,717 INFO L226 Difference]: Without dead ends: 9939 [2021-10-13 22:40:26,717 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2404.4ms TimeCoverageRelationStatistics Valid=591, Invalid=1571, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:26,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9939 states. [2021-10-13 22:40:26,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9939 to 4360. [2021-10-13 22:40:26,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4360 states, 4358 states have (on average 2.731987150068839) internal successors, (11906), 4359 states have internal predecessors, (11906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:26,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4360 states to 4360 states and 11906 transitions. [2021-10-13 22:40:26,797 INFO L78 Accepts]: Start accepts. Automaton has 4360 states and 11906 transitions. Word has length 96 [2021-10-13 22:40:26,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:26,797 INFO L470 AbstractCegarLoop]: Abstraction has 4360 states and 11906 transitions. [2021-10-13 22:40:26,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:26,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4360 states and 11906 transitions. [2021-10-13 22:40:26,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:26,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:26,801 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:26,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-10-13 22:40:26,802 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:26,802 INFO L82 PathProgramCache]: Analyzing trace with hash 395816873, now seen corresponding path program 169 times [2021-10-13 22:40:26,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:26,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68908476] [2021-10-13 22:40:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:26,802 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:26,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:27,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:27,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68908476] [2021-10-13 22:40:27,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68908476] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:27,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:27,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:27,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240487476] [2021-10-13 22:40:27,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:27,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:27,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:27,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:27,386 INFO L87 Difference]: Start difference. First operand 4360 states and 11906 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:30,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:30,991 INFO L93 Difference]: Finished difference Result 11015 states and 28832 transitions. [2021-10-13 22:40:30,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:40:30,992 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:31,003 INFO L225 Difference]: With dead ends: 11015 [2021-10-13 22:40:31,004 INFO L226 Difference]: Without dead ends: 11015 [2021-10-13 22:40:31,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 3210.2ms TimeCoverageRelationStatistics Valid=777, Invalid=1875, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:40:31,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11015 states. [2021-10-13 22:40:31,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11015 to 4324. [2021-10-13 22:40:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.7297547431744564) internal successors, (11798), 4323 states have internal predecessors, (11798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:31,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11798 transitions. [2021-10-13 22:40:31,079 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11798 transitions. Word has length 96 [2021-10-13 22:40:31,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:31,080 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 11798 transitions. [2021-10-13 22:40:31,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:31,080 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11798 transitions. [2021-10-13 22:40:31,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:31,083 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:31,084 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:31,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-10-13 22:40:31,084 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:31,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:31,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1066146447, now seen corresponding path program 170 times [2021-10-13 22:40:31,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:31,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788773529] [2021-10-13 22:40:31,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:31,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:31,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:31,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:31,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788773529] [2021-10-13 22:40:31,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788773529] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:31,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:31,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:31,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421375750] [2021-10-13 22:40:31,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:31,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:31,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:31,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:31,633 INFO L87 Difference]: Start difference. First operand 4324 states and 11798 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:34,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:34,297 INFO L93 Difference]: Finished difference Result 9868 states and 25714 transitions. [2021-10-13 22:40:34,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:34,298 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:34,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:34,308 INFO L225 Difference]: With dead ends: 9868 [2021-10-13 22:40:34,308 INFO L226 Difference]: Without dead ends: 9868 [2021-10-13 22:40:34,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2308.4ms TimeCoverageRelationStatistics Valid=576, Invalid=1586, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:34,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9868 states. [2021-10-13 22:40:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9868 to 4326. [2021-10-13 22:40:34,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 4324 states have (on average 2.729648473635523) internal successors, (11803), 4325 states have internal predecessors, (11803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:34,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 11803 transitions. [2021-10-13 22:40:34,379 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 11803 transitions. Word has length 96 [2021-10-13 22:40:34,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:34,379 INFO L470 AbstractCegarLoop]: Abstraction has 4326 states and 11803 transitions. [2021-10-13 22:40:34,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:34,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 11803 transitions. [2021-10-13 22:40:34,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:34,383 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:34,383 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] [2021-10-13 22:40:34,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-10-13 22:40:34,383 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:34,383 INFO L82 PathProgramCache]: Analyzing trace with hash -862652803, now seen corresponding path program 171 times [2021-10-13 22:40:34,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:34,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190563920] [2021-10-13 22:40:34,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:34,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:34,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:34,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:34,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190563920] [2021-10-13 22:40:34,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190563920] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:34,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:34,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:34,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997144124] [2021-10-13 22:40:34,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:34,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:34,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:34,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:34,974 INFO L87 Difference]: Start difference. First operand 4326 states and 11803 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:37,652 INFO L93 Difference]: Finished difference Result 9746 states and 25462 transitions. [2021-10-13 22:40:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:37,652 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:37,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:37,661 INFO L225 Difference]: With dead ends: 9746 [2021-10-13 22:40:37,662 INFO L226 Difference]: Without dead ends: 9746 [2021-10-13 22:40:37,662 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2352.2ms TimeCoverageRelationStatistics Valid=577, Invalid=1585, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:37,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9746 states. [2021-10-13 22:40:37,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9746 to 4324. [2021-10-13 22:40:37,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.7297547431744564) internal successors, (11798), 4323 states have internal predecessors, (11798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:37,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11798 transitions. [2021-10-13 22:40:37,736 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11798 transitions. Word has length 96 [2021-10-13 22:40:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:37,736 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 11798 transitions. [2021-10-13 22:40:37,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11798 transitions. [2021-10-13 22:40:37,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:37,741 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:37,741 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:37,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-10-13 22:40:37,741 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:37,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:37,742 INFO L82 PathProgramCache]: Analyzing trace with hash -592334083, now seen corresponding path program 172 times [2021-10-13 22:40:37,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:37,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916781954] [2021-10-13 22:40:37,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:37,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:38,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:38,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:38,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916781954] [2021-10-13 22:40:38,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916781954] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:38,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:38,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:38,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109099534] [2021-10-13 22:40:38,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:38,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:38,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:38,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:38,297 INFO L87 Difference]: Start difference. First operand 4324 states and 11798 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:41,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:41,887 INFO L93 Difference]: Finished difference Result 11976 states and 31281 transitions. [2021-10-13 22:40:41,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:40:41,887 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:41,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:41,902 INFO L225 Difference]: With dead ends: 11976 [2021-10-13 22:40:41,902 INFO L226 Difference]: Without dead ends: 11976 [2021-10-13 22:40:41,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 3167.7ms TimeCoverageRelationStatistics Valid=778, Invalid=1874, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:40:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11976 states. [2021-10-13 22:40:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11976 to 4336. [2021-10-13 22:40:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.7305029995385324) internal successors, (11834), 4335 states have internal predecessors, (11834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11834 transitions. [2021-10-13 22:40:42,008 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11834 transitions. Word has length 96 [2021-10-13 22:40:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:42,008 INFO L470 AbstractCegarLoop]: Abstraction has 4336 states and 11834 transitions. [2021-10-13 22:40:42,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:42,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11834 transitions. [2021-10-13 22:40:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:42,012 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:42,012 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] [2021-10-13 22:40:42,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-10-13 22:40:42,012 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:42,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:42,013 INFO L82 PathProgramCache]: Analyzing trace with hash 225156411, now seen corresponding path program 173 times [2021-10-13 22:40:42,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:42,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404952273] [2021-10-13 22:40:42,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:42,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:42,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:42,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404952273] [2021-10-13 22:40:42,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404952273] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:42,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:42,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:42,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863742567] [2021-10-13 22:40:42,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:42,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:42,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:42,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:42,556 INFO L87 Difference]: Start difference. First operand 4336 states and 11834 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:45,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:45,331 INFO L93 Difference]: Finished difference Result 10817 states and 28295 transitions. [2021-10-13 22:40:45,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:45,332 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:45,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:45,343 INFO L225 Difference]: With dead ends: 10817 [2021-10-13 22:40:45,343 INFO L226 Difference]: Without dead ends: 10817 [2021-10-13 22:40:45,343 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2376.2ms TimeCoverageRelationStatistics Valid=592, Invalid=1570, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:45,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10817 states. [2021-10-13 22:40:45,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 4312. [2021-10-13 22:40:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 4310 states have (on average 2.729002320185615) internal successors, (11762), 4311 states have internal predecessors, (11762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 11762 transitions. [2021-10-13 22:40:45,416 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 11762 transitions. Word has length 96 [2021-10-13 22:40:45,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:45,416 INFO L470 AbstractCegarLoop]: Abstraction has 4312 states and 11762 transitions. [2021-10-13 22:40:45,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:45,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 11762 transitions. [2021-10-13 22:40:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:45,420 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:45,420 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:45,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-10-13 22:40:45,420 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:45,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:45,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1612534455, now seen corresponding path program 174 times [2021-10-13 22:40:45,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:45,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330936326] [2021-10-13 22:40:45,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:45,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:45,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:45,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:45,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330936326] [2021-10-13 22:40:45,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330936326] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:45,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:45,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:45,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009802976] [2021-10-13 22:40:45,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:45,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:45,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:45,988 INFO L87 Difference]: Start difference. First operand 4312 states and 11762 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:48,498 INFO L93 Difference]: Finished difference Result 9925 states and 25843 transitions. [2021-10-13 22:40:48,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:48,498 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:48,510 INFO L225 Difference]: With dead ends: 9925 [2021-10-13 22:40:48,510 INFO L226 Difference]: Without dead ends: 9925 [2021-10-13 22:40:48,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 2190.4ms TimeCoverageRelationStatistics Valid=561, Invalid=1601, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:48,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9925 states. [2021-10-13 22:40:48,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9925 to 4306. [2021-10-13 22:40:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 4304 states have (on average 2.72932156133829) internal successors, (11747), 4305 states have internal predecessors, (11747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:48,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 11747 transitions. [2021-10-13 22:40:48,585 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 11747 transitions. Word has length 96 [2021-10-13 22:40:48,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:48,585 INFO L470 AbstractCegarLoop]: Abstraction has 4306 states and 11747 transitions. [2021-10-13 22:40:48,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:48,585 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 11747 transitions. [2021-10-13 22:40:48,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:48,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:48,605 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:48,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-10-13 22:40:48,605 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:48,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:48,605 INFO L82 PathProgramCache]: Analyzing trace with hash 753633591, now seen corresponding path program 175 times [2021-10-13 22:40:48,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:48,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655186050] [2021-10-13 22:40:48,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:48,605 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:48,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:49,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:49,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:49,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655186050] [2021-10-13 22:40:49,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655186050] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:49,155 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:49,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:49,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775669902] [2021-10-13 22:40:49,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:49,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:49,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:49,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:49,155 INFO L87 Difference]: Start difference. First operand 4306 states and 11747 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:51,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:51,766 INFO L93 Difference]: Finished difference Result 10072 states and 26154 transitions. [2021-10-13 22:40:51,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:40:51,766 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:51,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:51,776 INFO L225 Difference]: With dead ends: 10072 [2021-10-13 22:40:51,776 INFO L226 Difference]: Without dead ends: 10072 [2021-10-13 22:40:51,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 2226.5ms TimeCoverageRelationStatistics Valid=562, Invalid=1600, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:40:51,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10072 states. [2021-10-13 22:40:51,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10072 to 4304. [2021-10-13 22:40:51,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4304 states, 4302 states have (on average 2.7294281729428174) internal successors, (11742), 4303 states have internal predecessors, (11742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 11742 transitions. [2021-10-13 22:40:51,839 INFO L78 Accepts]: Start accepts. Automaton has 4304 states and 11742 transitions. Word has length 96 [2021-10-13 22:40:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:51,839 INFO L470 AbstractCegarLoop]: Abstraction has 4304 states and 11742 transitions. [2021-10-13 22:40:51,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:51,839 INFO L276 IsEmpty]: Start isEmpty. Operand 4304 states and 11742 transitions. [2021-10-13 22:40:51,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:51,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:51,843 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:51,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-10-13 22:40:51,843 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:51,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1932754871, now seen corresponding path program 176 times [2021-10-13 22:40:51,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:51,844 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478060223] [2021-10-13 22:40:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:51,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:52,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:52,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478060223] [2021-10-13 22:40:52,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478060223] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:52,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:52,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:52,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871595971] [2021-10-13 22:40:52,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:52,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:52,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:52,381 INFO L87 Difference]: Start difference. First operand 4304 states and 11742 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:55,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:55,046 INFO L93 Difference]: Finished difference Result 9833 states and 25657 transitions. [2021-10-13 22:40:55,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:40:55,046 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:55,058 INFO L225 Difference]: With dead ends: 9833 [2021-10-13 22:40:55,058 INFO L226 Difference]: Without dead ends: 9833 [2021-10-13 22:40:55,059 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 2282.9ms TimeCoverageRelationStatistics Valid=595, Invalid=1661, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:40:55,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9833 states. [2021-10-13 22:40:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9833 to 4300. [2021-10-13 22:40:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4300 states, 4298 states have (on average 2.729641693811075) internal successors, (11732), 4299 states have internal predecessors, (11732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4300 states to 4300 states and 11732 transitions. [2021-10-13 22:40:55,147 INFO L78 Accepts]: Start accepts. Automaton has 4300 states and 11732 transitions. Word has length 96 [2021-10-13 22:40:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:55,147 INFO L470 AbstractCegarLoop]: Abstraction has 4300 states and 11732 transitions. [2021-10-13 22:40:55,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 4300 states and 11732 transitions. [2021-10-13 22:40:55,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:55,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:55,152 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] [2021-10-13 22:40:55,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-10-13 22:40:55,152 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:55,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:55,152 INFO L82 PathProgramCache]: Analyzing trace with hash -737012635, now seen corresponding path program 177 times [2021-10-13 22:40:55,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:55,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779709560] [2021-10-13 22:40:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:55,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:55,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:40:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:40:55,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:40:55,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779709560] [2021-10-13 22:40:55,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779709560] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:40:55,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:40:55,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:40:55,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528133875] [2021-10-13 22:40:55,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:40:55,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:40:55,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:40:55,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:40:55,726 INFO L87 Difference]: Start difference. First operand 4300 states and 11732 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:59,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:40:59,594 INFO L93 Difference]: Finished difference Result 11728 states and 30568 transitions. [2021-10-13 22:40:59,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:40:59,594 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:40:59,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:40:59,607 INFO L225 Difference]: With dead ends: 11728 [2021-10-13 22:40:59,607 INFO L226 Difference]: Without dead ends: 11728 [2021-10-13 22:40:59,608 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 3389.4ms TimeCoverageRelationStatistics Valid=834, Invalid=2028, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:40:59,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11728 states. [2021-10-13 22:40:59,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11728 to 4336. [2021-10-13 22:40:59,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4336 states, 4334 states have (on average 2.731887401938163) internal successors, (11840), 4335 states have internal predecessors, (11840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 11840 transitions. [2021-10-13 22:40:59,682 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 11840 transitions. Word has length 96 [2021-10-13 22:40:59,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:40:59,682 INFO L470 AbstractCegarLoop]: Abstraction has 4336 states and 11840 transitions. [2021-10-13 22:40:59,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:40:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 11840 transitions. [2021-10-13 22:40:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:40:59,686 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:40:59,686 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:40:59,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-10-13 22:40:59,687 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:40:59,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:40:59,687 INFO L82 PathProgramCache]: Analyzing trace with hash 80477859, now seen corresponding path program 178 times [2021-10-13 22:40:59,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:40:59,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358585272] [2021-10-13 22:40:59,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:40:59,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:40:59,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:00,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:00,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358585272] [2021-10-13 22:41:00,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358585272] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:00,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:00,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:00,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375190805] [2021-10-13 22:41:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:00,257 INFO L87 Difference]: Start difference. First operand 4336 states and 11840 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:03,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:03,993 INFO L93 Difference]: Finished difference Result 11953 states and 30972 transitions. [2021-10-13 22:41:03,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-13 22:41:03,993 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:03,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:04,006 INFO L225 Difference]: With dead ends: 11953 [2021-10-13 22:41:04,006 INFO L226 Difference]: Without dead ends: 11953 [2021-10-13 22:41:04,006 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 3229.1ms TimeCoverageRelationStatistics Valid=818, Invalid=2044, Unknown=0, NotChecked=0, Total=2862 [2021-10-13 22:41:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11953 states. [2021-10-13 22:41:04,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11953 to 4324. [2021-10-13 22:41:04,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4322 states have (on average 2.7311429893567793) internal successors, (11804), 4323 states have internal predecessors, (11804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:04,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 11804 transitions. [2021-10-13 22:41:04,081 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 11804 transitions. Word has length 96 [2021-10-13 22:41:04,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:04,081 INFO L470 AbstractCegarLoop]: Abstraction has 4324 states and 11804 transitions. [2021-10-13 22:41:04,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 11804 transitions. [2021-10-13 22:41:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:04,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:04,085 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:04,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-10-13 22:41:04,086 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:04,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:04,086 INFO L82 PathProgramCache]: Analyzing trace with hash -698667863, now seen corresponding path program 179 times [2021-10-13 22:41:04,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:04,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984204585] [2021-10-13 22:41:04,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:04,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:04,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:04,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984204585] [2021-10-13 22:41:04,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984204585] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:04,645 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:04,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:04,645 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669798765] [2021-10-13 22:41:04,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:04,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:04,646 INFO L87 Difference]: Start difference. First operand 4324 states and 11804 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:07,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:07,453 INFO L93 Difference]: Finished difference Result 10468 states and 27304 transitions. [2021-10-13 22:41:07,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:41:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:07,464 INFO L225 Difference]: With dead ends: 10468 [2021-10-13 22:41:07,464 INFO L226 Difference]: Without dead ends: 10468 [2021-10-13 22:41:07,464 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 2425.1ms TimeCoverageRelationStatistics Valid=610, Invalid=1646, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:41:07,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10468 states. [2021-10-13 22:41:07,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10468 to 4264. [2021-10-13 22:41:07,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4264 states, 4262 states have (on average 2.7273580478648523) internal successors, (11624), 4263 states have internal predecessors, (11624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4264 states to 4264 states and 11624 transitions. [2021-10-13 22:41:07,526 INFO L78 Accepts]: Start accepts. Automaton has 4264 states and 11624 transitions. Word has length 96 [2021-10-13 22:41:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:07,526 INFO L470 AbstractCegarLoop]: Abstraction has 4264 states and 11624 transitions. [2021-10-13 22:41:07,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4264 states and 11624 transitions. [2021-10-13 22:41:07,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:07,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:07,530 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:07,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-10-13 22:41:07,530 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:07,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:07,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1374356467, now seen corresponding path program 180 times [2021-10-13 22:41:07,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:07,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025464468] [2021-10-13 22:41:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:07,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:08,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:08,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:08,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025464468] [2021-10-13 22:41:08,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025464468] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:08,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:08,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:08,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676924520] [2021-10-13 22:41:08,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:08,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:08,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:08,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:08,073 INFO L87 Difference]: Start difference. First operand 4264 states and 11624 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:10,785 INFO L93 Difference]: Finished difference Result 8483 states and 22017 transitions. [2021-10-13 22:41:10,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-13 22:41:10,785 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:10,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:10,795 INFO L225 Difference]: With dead ends: 8483 [2021-10-13 22:41:10,795 INFO L226 Difference]: Without dead ends: 8483 [2021-10-13 22:41:10,796 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 2260.9ms TimeCoverageRelationStatistics Valid=624, Invalid=1826, Unknown=0, NotChecked=0, Total=2450 [2021-10-13 22:41:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8483 states. [2021-10-13 22:41:10,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8483 to 4232. [2021-10-13 22:41:10,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4232 states, 4230 states have (on average 2.726241134751773) internal successors, (11532), 4231 states have internal predecessors, (11532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4232 states to 4232 states and 11532 transitions. [2021-10-13 22:41:10,873 INFO L78 Accepts]: Start accepts. Automaton has 4232 states and 11532 transitions. Word has length 96 [2021-10-13 22:41:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:10,873 INFO L470 AbstractCegarLoop]: Abstraction has 4232 states and 11532 transitions. [2021-10-13 22:41:10,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:10,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4232 states and 11532 transitions. [2021-10-13 22:41:10,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:10,877 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:10,877 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:10,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-10-13 22:41:10,878 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:10,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:10,878 INFO L82 PathProgramCache]: Analyzing trace with hash -535542411, now seen corresponding path program 181 times [2021-10-13 22:41:10,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:10,878 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51357624] [2021-10-13 22:41:10,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:10,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:11,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:11,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:11,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51357624] [2021-10-13 22:41:11,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51357624] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:11,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:11,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:11,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074434695] [2021-10-13 22:41:11,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:11,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:11,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:11,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:11,422 INFO L87 Difference]: Start difference. First operand 4232 states and 11532 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:13,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:13,937 INFO L93 Difference]: Finished difference Result 8502 states and 22030 transitions. [2021-10-13 22:41:13,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:41:13,938 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:13,947 INFO L225 Difference]: With dead ends: 8502 [2021-10-13 22:41:13,947 INFO L226 Difference]: Without dead ends: 8502 [2021-10-13 22:41:13,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 2189.4ms TimeCoverageRelationStatistics Valid=594, Invalid=1758, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:41:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8502 states. [2021-10-13 22:41:14,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 4234. [2021-10-13 22:41:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4234 states, 4232 states have (on average 2.726134215500945) internal successors, (11537), 4233 states have internal predecessors, (11537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4234 states to 4234 states and 11537 transitions. [2021-10-13 22:41:14,012 INFO L78 Accepts]: Start accepts. Automaton has 4234 states and 11537 transitions. Word has length 96 [2021-10-13 22:41:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:14,012 INFO L470 AbstractCegarLoop]: Abstraction has 4234 states and 11537 transitions. [2021-10-13 22:41:14,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:14,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4234 states and 11537 transitions. [2021-10-13 22:41:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:14,017 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:14,017 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:14,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2021-10-13 22:41:14,017 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:14,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:14,017 INFO L82 PathProgramCache]: Analyzing trace with hash -382815677, now seen corresponding path program 182 times [2021-10-13 22:41:14,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:14,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835443564] [2021-10-13 22:41:14,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:14,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:14,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:14,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:14,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835443564] [2021-10-13 22:41:14,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835443564] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:14,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:14,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:14,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434825226] [2021-10-13 22:41:14,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:14,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:14,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:14,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:14,576 INFO L87 Difference]: Start difference. First operand 4234 states and 11537 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:16,887 INFO L93 Difference]: Finished difference Result 8293 states and 21587 transitions. [2021-10-13 22:41:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:41:16,887 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:16,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:16,896 INFO L225 Difference]: With dead ends: 8293 [2021-10-13 22:41:16,897 INFO L226 Difference]: Without dead ends: 8293 [2021-10-13 22:41:16,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1988.6ms TimeCoverageRelationStatistics Valid=531, Invalid=1631, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:41:16,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8293 states. [2021-10-13 22:41:16,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8293 to 4240. [2021-10-13 22:41:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4240 states, 4238 states have (on average 2.725814063237376) internal successors, (11552), 4239 states have internal predecessors, (11552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4240 states to 4240 states and 11552 transitions. [2021-10-13 22:41:16,960 INFO L78 Accepts]: Start accepts. Automaton has 4240 states and 11552 transitions. Word has length 96 [2021-10-13 22:41:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:16,960 INFO L470 AbstractCegarLoop]: Abstraction has 4240 states and 11552 transitions. [2021-10-13 22:41:16,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 4240 states and 11552 transitions. [2021-10-13 22:41:16,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:16,965 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:16,965 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] [2021-10-13 22:41:16,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2021-10-13 22:41:16,965 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:16,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:16,965 INFO L82 PathProgramCache]: Analyzing trace with hash 769227415, now seen corresponding path program 183 times [2021-10-13 22:41:16,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:16,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723344743] [2021-10-13 22:41:16,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:16,965 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:17,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:17,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723344743] [2021-10-13 22:41:17,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723344743] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:17,528 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:17,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:17,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793740453] [2021-10-13 22:41:17,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:17,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:17,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:17,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:17,529 INFO L87 Difference]: Start difference. First operand 4240 states and 11552 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:19,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:19,809 INFO L93 Difference]: Finished difference Result 8440 states and 21898 transitions. [2021-10-13 22:41:19,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:41:19,809 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:19,818 INFO L225 Difference]: With dead ends: 8440 [2021-10-13 22:41:19,818 INFO L226 Difference]: Without dead ends: 8440 [2021-10-13 22:41:19,818 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 1965.4ms TimeCoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:41:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-10-13 22:41:19,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 4238. [2021-10-13 22:41:19,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4238 states, 4236 states have (on average 2.7259206798866855) internal successors, (11547), 4237 states have internal predecessors, (11547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4238 states to 4238 states and 11547 transitions. [2021-10-13 22:41:19,880 INFO L78 Accepts]: Start accepts. Automaton has 4238 states and 11547 transitions. Word has length 96 [2021-10-13 22:41:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:19,880 INFO L470 AbstractCegarLoop]: Abstraction has 4238 states and 11547 transitions. [2021-10-13 22:41:19,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:19,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4238 states and 11547 transitions. [2021-10-13 22:41:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:19,884 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:19,884 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:19,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2021-10-13 22:41:19,884 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:19,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1791814145, now seen corresponding path program 184 times [2021-10-13 22:41:19,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:19,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488904334] [2021-10-13 22:41:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:19,885 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:20,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:20,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:20,450 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488904334] [2021-10-13 22:41:20,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488904334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:20,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:20,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:20,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616834443] [2021-10-13 22:41:20,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:20,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:20,451 INFO L87 Difference]: Start difference. First operand 4238 states and 11547 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:22,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:22,968 INFO L93 Difference]: Finished difference Result 8362 states and 21740 transitions. [2021-10-13 22:41:22,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:41:22,968 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:22,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:22,977 INFO L225 Difference]: With dead ends: 8362 [2021-10-13 22:41:22,977 INFO L226 Difference]: Without dead ends: 8362 [2021-10-13 22:41:22,978 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 2118.6ms TimeCoverageRelationStatistics Valid=565, Invalid=1691, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:41:22,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8362 states. [2021-10-13 22:41:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8362 to 4218. [2021-10-13 22:41:23,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4218 states, 4216 states have (on average 2.7255692599620494) internal successors, (11491), 4217 states have internal predecessors, (11491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4218 states to 4218 states and 11491 transitions. [2021-10-13 22:41:23,034 INFO L78 Accepts]: Start accepts. Automaton has 4218 states and 11491 transitions. Word has length 96 [2021-10-13 22:41:23,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:23,034 INFO L470 AbstractCegarLoop]: Abstraction has 4218 states and 11491 transitions. [2021-10-13 22:41:23,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4218 states and 11491 transitions. [2021-10-13 22:41:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:23,038 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:23,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:23,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2021-10-13 22:41:23,038 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:23,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1293595241, now seen corresponding path program 185 times [2021-10-13 22:41:23,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:23,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845922761] [2021-10-13 22:41:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:23,039 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:23,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:23,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845922761] [2021-10-13 22:41:23,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845922761] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:23,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:23,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:23,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356169849] [2021-10-13 22:41:23,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:23,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:23,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:23,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:23,612 INFO L87 Difference]: Start difference. First operand 4218 states and 11491 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:26,338 INFO L93 Difference]: Finished difference Result 11452 states and 29899 transitions. [2021-10-13 22:41:26,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:41:26,338 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:26,351 INFO L225 Difference]: With dead ends: 11452 [2021-10-13 22:41:26,351 INFO L226 Difference]: Without dead ends: 11452 [2021-10-13 22:41:26,351 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 2359.8ms TimeCoverageRelationStatistics Valid=624, Invalid=1728, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:41:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11452 states. [2021-10-13 22:41:26,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11452 to 4290. [2021-10-13 22:41:26,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.73017723880597) internal successors, (11707), 4289 states have internal predecessors, (11707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:26,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11707 transitions. [2021-10-13 22:41:26,430 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11707 transitions. Word has length 96 [2021-10-13 22:41:26,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:26,430 INFO L470 AbstractCegarLoop]: Abstraction has 4290 states and 11707 transitions. [2021-10-13 22:41:26,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:26,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11707 transitions. [2021-10-13 22:41:26,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:26,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:26,434 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:26,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2021-10-13 22:41:26,434 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash -140136665, now seen corresponding path program 186 times [2021-10-13 22:41:26,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:26,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337427414] [2021-10-13 22:41:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:26,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:26,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:26,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:26,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:26,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337427414] [2021-10-13 22:41:26,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337427414] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:26,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:26,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:26,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846188392] [2021-10-13 22:41:26,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:26,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:26,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:26,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=527, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:26,983 INFO L87 Difference]: Start difference. First operand 4290 states and 11707 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:30,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:30,769 INFO L93 Difference]: Finished difference Result 12912 states and 33762 transitions. [2021-10-13 22:41:30,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:41:30,769 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:30,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:30,784 INFO L225 Difference]: With dead ends: 12912 [2021-10-13 22:41:30,784 INFO L226 Difference]: Without dead ends: 12912 [2021-10-13 22:41:30,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 3300.0ms TimeCoverageRelationStatistics Valid=869, Invalid=2101, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:41:30,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12912 states. [2021-10-13 22:41:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12912 to 4314. [2021-10-13 22:41:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4314 states, 4312 states have (on average 2.7316790352504636) internal successors, (11779), 4313 states have internal predecessors, (11779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4314 states to 4314 states and 11779 transitions. [2021-10-13 22:41:30,859 INFO L78 Accepts]: Start accepts. Automaton has 4314 states and 11779 transitions. Word has length 96 [2021-10-13 22:41:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:30,860 INFO L470 AbstractCegarLoop]: Abstraction has 4314 states and 11779 transitions. [2021-10-13 22:41:30,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 4314 states and 11779 transitions. [2021-10-13 22:41:30,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:30,864 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:30,864 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:30,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2021-10-13 22:41:30,864 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:30,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:30,864 INFO L82 PathProgramCache]: Analyzing trace with hash 176019419, now seen corresponding path program 187 times [2021-10-13 22:41:30,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:30,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026944817] [2021-10-13 22:41:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:30,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:30,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:31,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:31,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:31,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026944817] [2021-10-13 22:41:31,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026944817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:31,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:31,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:31,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974684612] [2021-10-13 22:41:31,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:31,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:31,466 INFO L87 Difference]: Start difference. First operand 4314 states and 11779 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:35,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:35,624 INFO L93 Difference]: Finished difference Result 12522 states and 32739 transitions. [2021-10-13 22:41:35,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:41:35,624 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:35,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:35,637 INFO L225 Difference]: With dead ends: 12522 [2021-10-13 22:41:35,637 INFO L226 Difference]: Without dead ends: 12522 [2021-10-13 22:41:35,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3557.7ms TimeCoverageRelationStatistics Valid=889, Invalid=2191, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:41:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12522 states. [2021-10-13 22:41:35,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12522 to 4302. [2021-10-13 22:41:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4302 states, 4300 states have (on average 2.7309302325581397) internal successors, (11743), 4301 states have internal predecessors, (11743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:35,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4302 states to 4302 states and 11743 transitions. [2021-10-13 22:41:35,711 INFO L78 Accepts]: Start accepts. Automaton has 4302 states and 11743 transitions. Word has length 96 [2021-10-13 22:41:35,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:35,711 INFO L470 AbstractCegarLoop]: Abstraction has 4302 states and 11743 transitions. [2021-10-13 22:41:35,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:35,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4302 states and 11743 transitions. [2021-10-13 22:41:35,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:35,715 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:35,715 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] [2021-10-13 22:41:35,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2021-10-13 22:41:35,716 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:35,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1403410807, now seen corresponding path program 188 times [2021-10-13 22:41:35,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:35,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155197543] [2021-10-13 22:41:35,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:35,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:36,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:36,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:36,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155197543] [2021-10-13 22:41:36,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155197543] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:36,300 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:36,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:36,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748298183] [2021-10-13 22:41:36,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:36,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:36,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:36,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:36,301 INFO L87 Difference]: Start difference. First operand 4302 states and 11743 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:40,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:40,237 INFO L93 Difference]: Finished difference Result 13115 states and 34111 transitions. [2021-10-13 22:41:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 22:41:40,237 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:40,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:40,251 INFO L225 Difference]: With dead ends: 13115 [2021-10-13 22:41:40,251 INFO L226 Difference]: Without dead ends: 13115 [2021-10-13 22:41:40,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 3393.1ms TimeCoverageRelationStatistics Valid=872, Invalid=2208, Unknown=0, NotChecked=0, Total=3080 [2021-10-13 22:41:40,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13115 states. [2021-10-13 22:41:40,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13115 to 4290. [2021-10-13 22:41:40,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.73017723880597) internal successors, (11707), 4289 states have internal predecessors, (11707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11707 transitions. [2021-10-13 22:41:40,326 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11707 transitions. Word has length 96 [2021-10-13 22:41:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:40,326 INFO L470 AbstractCegarLoop]: Abstraction has 4290 states and 11707 transitions. [2021-10-13 22:41:40,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:40,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11707 transitions. [2021-10-13 22:41:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:40,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:40,330 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:40,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2021-10-13 22:41:40,331 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash 624265085, now seen corresponding path program 189 times [2021-10-13 22:41:40,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:40,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947314718] [2021-10-13 22:41:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:40,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:40,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:40,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:40,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947314718] [2021-10-13 22:41:40,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947314718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:40,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:40,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:40,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533867659] [2021-10-13 22:41:40,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:40,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:40,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:40,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:40,912 INFO L87 Difference]: Start difference. First operand 4290 states and 11707 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:44,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:44,626 INFO L93 Difference]: Finished difference Result 13146 states and 34184 transitions. [2021-10-13 22:41:44,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-13 22:41:44,627 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:44,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:44,640 INFO L225 Difference]: With dead ends: 13146 [2021-10-13 22:41:44,640 INFO L226 Difference]: Without dead ends: 13146 [2021-10-13 22:41:44,640 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 3153.2ms TimeCoverageRelationStatistics Valid=824, Invalid=2146, Unknown=0, NotChecked=0, Total=2970 [2021-10-13 22:41:44,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13146 states. [2021-10-13 22:41:44,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13146 to 4254. [2021-10-13 22:41:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 4252 states have (on average 2.727892756349953) internal successors, (11599), 4253 states have internal predecessors, (11599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 11599 transitions. [2021-10-13 22:41:44,731 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 11599 transitions. Word has length 96 [2021-10-13 22:41:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:44,731 INFO L470 AbstractCegarLoop]: Abstraction has 4254 states and 11599 transitions. [2021-10-13 22:41:44,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:44,731 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 11599 transitions. [2021-10-13 22:41:44,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:44,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:44,735 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:44,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2021-10-13 22:41:44,735 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:44,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:44,735 INFO L82 PathProgramCache]: Analyzing trace with hash -830300965, now seen corresponding path program 190 times [2021-10-13 22:41:44,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:44,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383828674] [2021-10-13 22:41:44,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:44,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:45,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:45,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383828674] [2021-10-13 22:41:45,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383828674] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:45,309 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:45,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:45,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875892820] [2021-10-13 22:41:45,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:45,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:45,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:45,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:45,309 INFO L87 Difference]: Start difference. First operand 4254 states and 11599 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:48,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:48,083 INFO L93 Difference]: Finished difference Result 11699 states and 30539 transitions. [2021-10-13 22:41:48,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-10-13 22:41:48,083 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:48,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:48,097 INFO L225 Difference]: With dead ends: 11699 [2021-10-13 22:41:48,097 INFO L226 Difference]: Without dead ends: 11699 [2021-10-13 22:41:48,097 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2350.1ms TimeCoverageRelationStatistics Valid=609, Invalid=1743, Unknown=0, NotChecked=0, Total=2352 [2021-10-13 22:41:48,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11699 states. [2021-10-13 22:41:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11699 to 4256. [2021-10-13 22:41:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4256 states, 4254 states have (on average 2.7277856135401977) internal successors, (11604), 4255 states have internal predecessors, (11604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4256 states to 4256 states and 11604 transitions. [2021-10-13 22:41:48,199 INFO L78 Accepts]: Start accepts. Automaton has 4256 states and 11604 transitions. Word has length 96 [2021-10-13 22:41:48,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:48,199 INFO L470 AbstractCegarLoop]: Abstraction has 4256 states and 11604 transitions. [2021-10-13 22:41:48,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:48,199 INFO L276 IsEmpty]: Start isEmpty. Operand 4256 states and 11604 transitions. [2021-10-13 22:41:48,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:48,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:48,204 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:48,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2021-10-13 22:41:48,204 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:48,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:48,204 INFO L82 PathProgramCache]: Analyzing trace with hash -677574231, now seen corresponding path program 191 times [2021-10-13 22:41:48,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:48,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764366287] [2021-10-13 22:41:48,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:48,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:48,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:48,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764366287] [2021-10-13 22:41:48,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764366287] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:48,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:48,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:48,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462396176] [2021-10-13 22:41:48,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:48,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:48,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:48,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:48,756 INFO L87 Difference]: Start difference. First operand 4256 states and 11604 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:51,173 INFO L93 Difference]: Finished difference Result 11705 states and 30561 transitions. [2021-10-13 22:41:51,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:41:51,173 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:51,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:51,188 INFO L225 Difference]: With dead ends: 11705 [2021-10-13 22:41:51,188 INFO L226 Difference]: Without dead ends: 11705 [2021-10-13 22:41:51,189 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2105.6ms TimeCoverageRelationStatistics Valid=546, Invalid=1616, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:41:51,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11705 states. [2021-10-13 22:41:51,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11705 to 4262. [2021-10-13 22:41:51,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4262 states, 4260 states have (on average 2.7274647887323944) internal successors, (11619), 4261 states have internal predecessors, (11619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4262 states to 4262 states and 11619 transitions. [2021-10-13 22:41:51,287 INFO L78 Accepts]: Start accepts. Automaton has 4262 states and 11619 transitions. Word has length 96 [2021-10-13 22:41:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:51,287 INFO L470 AbstractCegarLoop]: Abstraction has 4262 states and 11619 transitions. [2021-10-13 22:41:51,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 4262 states and 11619 transitions. [2021-10-13 22:41:51,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:51,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:51,292 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:51,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2021-10-13 22:41:51,292 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:51,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:51,292 INFO L82 PathProgramCache]: Analyzing trace with hash 474468861, now seen corresponding path program 192 times [2021-10-13 22:41:51,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:51,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627263759] [2021-10-13 22:41:51,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:51,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:51,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:51,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627263759] [2021-10-13 22:41:51,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627263759] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:51,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:51,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:51,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397249295] [2021-10-13 22:41:51,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:51,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:51,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:51,858 INFO L87 Difference]: Start difference. First operand 4262 states and 11619 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:54,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:54,360 INFO L93 Difference]: Finished difference Result 11852 states and 30872 transitions. [2021-10-13 22:41:54,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:41:54,360 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:54,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:54,372 INFO L225 Difference]: With dead ends: 11852 [2021-10-13 22:41:54,372 INFO L226 Difference]: Without dead ends: 11852 [2021-10-13 22:41:54,373 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 2080.4ms TimeCoverageRelationStatistics Valid=547, Invalid=1615, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:41:54,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11852 states. [2021-10-13 22:41:54,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11852 to 4260. [2021-10-13 22:41:54,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 4258 states have (on average 2.72757162987318) internal successors, (11614), 4259 states have internal predecessors, (11614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 11614 transitions. [2021-10-13 22:41:54,457 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 11614 transitions. Word has length 96 [2021-10-13 22:41:54,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:54,457 INFO L470 AbstractCegarLoop]: Abstraction has 4260 states and 11614 transitions. [2021-10-13 22:41:54,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:54,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 11614 transitions. [2021-10-13 22:41:54,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:54,461 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:54,461 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:54,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2021-10-13 22:41:54,462 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:54,462 INFO L82 PathProgramCache]: Analyzing trace with hash -2086572699, now seen corresponding path program 193 times [2021-10-13 22:41:54,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:54,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064575973] [2021-10-13 22:41:54,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:54,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:55,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:55,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064575973] [2021-10-13 22:41:55,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064575973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:55,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:55,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:55,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002308408] [2021-10-13 22:41:55,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:55,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:55,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:55,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:55,017 INFO L87 Difference]: Start difference. First operand 4260 states and 11614 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:57,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:41:57,658 INFO L93 Difference]: Finished difference Result 11774 states and 30714 transitions. [2021-10-13 22:41:57,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 22:41:57,658 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:41:57,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:41:57,671 INFO L225 Difference]: With dead ends: 11774 [2021-10-13 22:41:57,671 INFO L226 Difference]: Without dead ends: 11774 [2021-10-13 22:41:57,672 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2241.0ms TimeCoverageRelationStatistics Valid=580, Invalid=1676, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 22:41:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11774 states. [2021-10-13 22:41:57,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11774 to 4254. [2021-10-13 22:41:57,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 4252 states have (on average 2.727892756349953) internal successors, (11599), 4253 states have internal predecessors, (11599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:57,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 11599 transitions. [2021-10-13 22:41:57,759 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 11599 transitions. Word has length 96 [2021-10-13 22:41:57,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:41:57,759 INFO L470 AbstractCegarLoop]: Abstraction has 4254 states and 11599 transitions. [2021-10-13 22:41:57,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:41:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 11599 transitions. [2021-10-13 22:41:57,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:41:57,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:41:57,763 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:41:57,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2021-10-13 22:41:57,764 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:41:57,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:41:57,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1667106199, now seen corresponding path program 194 times [2021-10-13 22:41:57,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:41:57,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050346864] [2021-10-13 22:41:57,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:41:57,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:41:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:41:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:41:58,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:41:58,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050346864] [2021-10-13 22:41:58,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050346864] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:41:58,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:41:58,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:41:58,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19876095] [2021-10-13 22:41:58,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:41:58,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:41:58,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:41:58,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=530, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:41:58,322 INFO L87 Difference]: Start difference. First operand 4254 states and 11599 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:01,278 INFO L93 Difference]: Finished difference Result 13428 states and 35173 transitions. [2021-10-13 22:42:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:42:01,278 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:42:01,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:01,296 INFO L225 Difference]: With dead ends: 13428 [2021-10-13 22:42:01,296 INFO L226 Difference]: Without dead ends: 13428 [2021-10-13 22:42:01,296 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 2497.7ms TimeCoverageRelationStatistics Valid=591, Invalid=1571, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:42:01,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13428 states. [2021-10-13 22:42:01,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13428 to 4326. [2021-10-13 22:42:01,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4326 states, 4324 states have (on average 2.732423681776133) internal successors, (11815), 4325 states have internal predecessors, (11815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:01,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4326 states to 4326 states and 11815 transitions. [2021-10-13 22:42:01,399 INFO L78 Accepts]: Start accepts. Automaton has 4326 states and 11815 transitions. Word has length 96 [2021-10-13 22:42:01,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:01,400 INFO L470 AbstractCegarLoop]: Abstraction has 4326 states and 11815 transitions. [2021-10-13 22:42:01,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 4326 states and 11815 transitions. [2021-10-13 22:42:01,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:42:01,404 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:01,404 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:01,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2021-10-13 22:42:01,404 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:42:01,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:01,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1529933061, now seen corresponding path program 195 times [2021-10-13 22:42:01,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:01,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908391918] [2021-10-13 22:42:01,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:01,405 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:01,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:01,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:01,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908391918] [2021-10-13 22:42:01,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908391918] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:01,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:01,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:42:01,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841687521] [2021-10-13 22:42:01,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:42:01,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:42:01,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:42:01,970 INFO L87 Difference]: Start difference. First operand 4326 states and 11815 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:05,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:05,749 INFO L93 Difference]: Finished difference Result 14504 states and 38016 transitions. [2021-10-13 22:42:05,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-13 22:42:05,749 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:42:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:05,768 INFO L225 Difference]: With dead ends: 14504 [2021-10-13 22:42:05,768 INFO L226 Difference]: Without dead ends: 14504 [2021-10-13 22:42:05,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 3247.6ms TimeCoverageRelationStatistics Valid=777, Invalid=1875, Unknown=0, NotChecked=0, Total=2652 [2021-10-13 22:42:05,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14504 states. [2021-10-13 22:42:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14504 to 4290. [2021-10-13 22:42:05,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4290 states, 4288 states have (on average 2.73017723880597) internal successors, (11707), 4289 states have internal predecessors, (11707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4290 states to 4290 states and 11707 transitions. [2021-10-13 22:42:05,870 INFO L78 Accepts]: Start accepts. Automaton has 4290 states and 11707 transitions. Word has length 96 [2021-10-13 22:42:05,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:05,870 INFO L470 AbstractCegarLoop]: Abstraction has 4290 states and 11707 transitions. [2021-10-13 22:42:05,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:05,870 INFO L276 IsEmpty]: Start isEmpty. Operand 4290 states and 11707 transitions. [2021-10-13 22:42:05,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:42:05,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:05,875 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:05,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2021-10-13 22:42:05,875 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:42:05,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:05,875 INFO L82 PathProgramCache]: Analyzing trace with hash -2094704661, now seen corresponding path program 196 times [2021-10-13 22:42:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:05,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077725463] [2021-10-13 22:42:05,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:05,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 22:42:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 22:42:06,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 22:42:06,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077725463] [2021-10-13 22:42:06,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077725463] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 22:42:06,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 22:42:06,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-10-13 22:42:06,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453738665] [2021-10-13 22:42:06,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 22:42:06,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 22:42:06,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 22:42:06,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2021-10-13 22:42:06,465 INFO L87 Difference]: Start difference. First operand 4290 states and 11707 transitions. Second operand has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:09,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 22:42:09,326 INFO L93 Difference]: Finished difference Result 13357 states and 34898 transitions. [2021-10-13 22:42:09,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-13 22:42:09,327 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-10-13 22:42:09,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 22:42:09,344 INFO L225 Difference]: With dead ends: 13357 [2021-10-13 22:42:09,344 INFO L226 Difference]: Without dead ends: 13357 [2021-10-13 22:42:09,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2357.3ms TimeCoverageRelationStatistics Valid=576, Invalid=1586, Unknown=0, NotChecked=0, Total=2162 [2021-10-13 22:42:09,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13357 states. [2021-10-13 22:42:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13357 to 4292. [2021-10-13 22:42:09,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4292 states, 4290 states have (on average 2.7300699300699303) internal successors, (11712), 4291 states have internal predecessors, (11712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4292 states to 4292 states and 11712 transitions. [2021-10-13 22:42:09,445 INFO L78 Accepts]: Start accepts. Automaton has 4292 states and 11712 transitions. Word has length 96 [2021-10-13 22:42:09,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 22:42:09,445 INFO L470 AbstractCegarLoop]: Abstraction has 4292 states and 11712 transitions. [2021-10-13 22:42:09,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.84) internal successors, (96), 25 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 22:42:09,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4292 states and 11712 transitions. [2021-10-13 22:42:09,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-13 22:42:09,449 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 22:42:09,449 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 22:42:09,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2021-10-13 22:42:09,449 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 22:42:09,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 22:42:09,450 INFO L82 PathProgramCache]: Analyzing trace with hash 271463385, now seen corresponding path program 197 times [2021-10-13 22:42:09,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 22:42:09,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316474621] [2021-10-13 22:42:09,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 22:42:09,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 22:42:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-10-13 22:42:09,734 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-13 22:42:09,735 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:09,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2021-10-13 22:42:09,735 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 97 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.. [2021-10-13 22:42:09,736 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:09,737 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:09,737 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 22:42:09,737 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 22:42:09,737 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 22:42:09,740 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 22:42:09,740 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 22:42:09,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:42:09 BasicIcfg [2021-10-13 22:42:09,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 22:42:09,742 INFO L168 Benchmark]: Toolchain (without parser) took 704551.00 ms. Allocated memory was 188.7 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 135.2 MB in the beginning and 665.7 MB in the end (delta: -530.4 MB). Peak memory consumption was 495.4 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,742 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 188.7 MB. Free memory was 155.1 MB in the beginning and 155.0 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-13 22:42:09,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.39 ms. Allocated memory was 188.7 MB in the beginning and 267.4 MB in the end (delta: 78.6 MB). Free memory was 135.0 MB in the beginning and 201.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,742 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-13 22:42:09,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.25 ms. Allocated memory is still 267.4 MB. Free memory was 201.2 MB in the beginning and 198.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,746 INFO L168 Benchmark]: Boogie Preprocessor took 23.49 ms. Allocated memory is still 267.4 MB. Free memory was 198.1 MB in the beginning and 195.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,746 INFO L168 Benchmark]: RCFGBuilder took 446.26 ms. Allocated memory is still 267.4 MB. Free memory was 195.5 MB in the beginning and 175.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,746 INFO L168 Benchmark]: TraceAbstraction took 703174.83 ms. Allocated memory was 267.4 MB in the beginning and 1.2 GB in the end (delta: 946.9 MB). Free memory was 174.5 MB in the beginning and 665.7 MB in the end (delta: -491.1 MB). Peak memory consumption was 455.7 MB. Max. memory is 8.0 GB. [2021-10-13 22:42:09,747 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 188.7 MB. Free memory was 155.1 MB in the beginning and 155.0 MB in the end (delta: 67.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 848.39 ms. Allocated memory was 188.7 MB in the beginning and 267.4 MB in the end (delta: 78.6 MB). Free memory was 135.0 MB in the beginning and 201.2 MB in the end (delta: -66.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.25 ms. Allocated memory is still 267.4 MB. Free memory was 201.2 MB in the beginning and 198.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 23.49 ms. Allocated memory is still 267.4 MB. Free memory was 198.1 MB in the beginning and 195.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 446.26 ms. Allocated memory is still 267.4 MB. Free memory was 195.5 MB in the beginning and 175.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 703174.83 ms. Allocated memory was 267.4 MB in the beginning and 1.2 GB in the end (delta: 946.9 MB). Free memory was 174.5 MB in the beginning and 665.7 MB in the end (delta: -491.1 MB). Peak memory consumption was 455.7 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 97 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 97 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 97 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 97 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: 1722]: 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 97 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: 1723]: 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 97 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, 151 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 703068.7ms, OverallIterations: 200, TraceHistogramMax: 1, EmptinessCheckTime: 788.3ms, AutomataDifference: 577841.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 152.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 60352 SDtfs, 199477 SDslu, 587996 SDs, 0 SdLazy, 247778 SolverSat, 15139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101339.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10193 GetRequests, 595 SyntacticMatches, 197 SemanticMatches, 9401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56447 ImplicationChecksByTransitivity, 496876.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6058occurred in iteration=2, InterpolantAutomatonStates: 5909, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 12651.1ms AutomataMinimizationTime, 199 MinimizatonAttempts, 910161 StatesRemovedByMinimization, 198 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 316.2ms SsaConstructionTime, 2051.1ms SatisfiabilityAnalysisTime, 106811.5ms InterpolantComputationTime, 18984 NumberOfCodeBlocks, 18984 NumberOfCodeBlocksAsserted, 199 NumberOfCheckSat, 18785 ConstructedInterpolants, 0 QuantifiedInterpolants, 293990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 199 InterpolantComputations, 199 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