/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:52:07,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:52:07,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:52:07,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:52:07,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:52:07,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:52:07,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:52:07,233 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 [2021-03-10 17:52:07,270 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:52:07,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:52:07,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:52:07,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:52:07,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:52:07,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:52:07,274 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:52:07,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:52:07,274 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:52:07,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:52:07,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:52:07,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:52:07,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:52:07,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:52:07,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:52:07,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:52:07,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:52:07,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:52:07,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:52:07,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:52:07,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:52:07,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:52:07,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:52:07,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:52:07,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:52:07,630 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:52:07,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-10 17:52:07,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64006c6fa/2b1b38ede2cb4233ac6774a9ef3e8047/FLAG227ea53c2 [2021-03-10 17:52:08,240 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:52:08,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i [2021-03-10 17:52:08,260 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64006c6fa/2b1b38ede2cb4233ac6774a9ef3e8047/FLAG227ea53c2 [2021-03-10 17:52:08,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/64006c6fa/2b1b38ede2cb4233ac6774a9ef3e8047 [2021-03-10 17:52:08,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:52:08,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:52:08,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:52:08,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:52:08,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:52:08,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:52:08" (1/1) ... [2021-03-10 17:52:08,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2996b97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:08, skipping insertion in model container [2021-03-10 17:52:08,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:52:08" (1/1) ... [2021-03-10 17:52:08,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:52:08,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:52:09,117 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-10 17:52:09,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:52:09,161 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:52:09,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_1-container_of-global.i[76084,76097] [2021-03-10 17:52:09,200 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:52:09,433 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:52:09,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09 WrapperNode [2021-03-10 17:52:09,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:52:09,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:52:09,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:52:09,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:52:09,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:52:09,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:52:09,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:52:09,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:52:09,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... [2021-03-10 17:52:09,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:52:09,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:52:09,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:52:09,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:52:09,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:52:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:52:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:52:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-10 17:52:09,640 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:52:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:52:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:52:09,642 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:52:10,237 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:52:10,237 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-10 17:52:10,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:52:10 BoogieIcfgContainer [2021-03-10 17:52:10,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:52:10,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:52:10,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:52:10,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:52:10,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:52:08" (1/3) ... [2021-03-10 17:52:10,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ce9027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:52:10, skipping insertion in model container [2021-03-10 17:52:10,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:09" (2/3) ... [2021-03-10 17:52:10,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ce9027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:52:10, skipping insertion in model container [2021-03-10 17:52:10,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:52:10" (3/3) ... [2021-03-10 17:52:10,249 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_1-container_of-global.i [2021-03-10 17:52:10,254 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:52:10,254 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:52:10,258 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-10 17:52:10,259 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:52:10,297 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,298 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,299 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,301 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,302 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,303 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,303 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,303 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,304 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,305 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,306 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,307 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,308 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,309 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,310 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,311 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,312 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,313 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,314 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,315 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,317 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,317 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,318 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,322 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,323 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,323 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,324 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,324 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,326 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,327 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,330 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,331 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,331 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,331 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,331 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:10,340 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-10 17:52:10,355 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-10 17:52:10,381 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:52:10,382 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:52:10,382 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:52:10,382 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:52:10,382 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:52:10,382 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:52:10,382 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:52:10,382 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:52:10,397 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 160 places, 164 transitions, 350 flow [2021-03-10 17:52:10,774 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:10,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:10,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 17:52:10,805 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:10,807 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:10,808 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:10,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:10,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1078115023, now seen corresponding path program 1 times [2021-03-10 17:52:10,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:10,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779912182] [2021-03-10 17:52:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:11,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779912182] [2021-03-10 17:52:11,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:11,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:11,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293111230] [2021-03-10 17:52:11,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:11,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:11,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:11,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:11,314 INFO L87 Difference]: Start difference. First operand has 7942 states, 7931 states have (on average 2.8384819064430715) internal successors, (22512), 7941 states have internal predecessors, (22512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:11,606 INFO L93 Difference]: Finished difference Result 7547 states and 20990 transitions. [2021-03-10 17:52:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:52:11,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-03-10 17:52:11,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:11,657 INFO L225 Difference]: With dead ends: 7547 [2021-03-10 17:52:11,657 INFO L226 Difference]: Without dead ends: 6158 [2021-03-10 17:52:11,659 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 78.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:52:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2021-03-10 17:52:11,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 6157. [2021-03-10 17:52:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6157 states, 6150 states have (on average 2.772682926829268) internal successors, (17052), 6156 states have internal predecessors, (17052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:11,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6157 states to 6157 states and 17052 transitions. [2021-03-10 17:52:11,981 INFO L78 Accepts]: Start accepts. Automaton has 6157 states and 17052 transitions. Word has length 36 [2021-03-10 17:52:11,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:11,981 INFO L480 AbstractCegarLoop]: Abstraction has 6157 states and 17052 transitions. [2021-03-10 17:52:11,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:11,982 INFO L276 IsEmpty]: Start isEmpty. Operand 6157 states and 17052 transitions. [2021-03-10 17:52:11,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 17:52:11,983 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:11,984 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:11,984 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:52:11,984 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1074499604, now seen corresponding path program 1 times [2021-03-10 17:52:11,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:11,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988575690] [2021-03-10 17:52:11,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:12,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988575690] [2021-03-10 17:52:12,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:12,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:12,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831311231] [2021-03-10 17:52:12,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:12,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:12,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:12,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:12,116 INFO L87 Difference]: Start difference. First operand 6157 states and 17052 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:12,291 INFO L93 Difference]: Finished difference Result 6159 states and 17054 transitions. [2021-03-10 17:52:12,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:52:12,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-03-10 17:52:12,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:12,319 INFO L225 Difference]: With dead ends: 6159 [2021-03-10 17:52:12,319 INFO L226 Difference]: Without dead ends: 6159 [2021-03-10 17:52:12,320 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 58.8ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:52:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6159 states. [2021-03-10 17:52:12,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6159 to 6155. [2021-03-10 17:52:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6155 states, 6149 states have (on average 2.7728085867620753) internal successors, (17050), 6154 states have internal predecessors, (17050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6155 states to 6155 states and 17050 transitions. [2021-03-10 17:52:12,579 INFO L78 Accepts]: Start accepts. Automaton has 6155 states and 17050 transitions. Word has length 42 [2021-03-10 17:52:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:12,580 INFO L480 AbstractCegarLoop]: Abstraction has 6155 states and 17050 transitions. [2021-03-10 17:52:12,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,581 INFO L276 IsEmpty]: Start isEmpty. Operand 6155 states and 17050 transitions. [2021-03-10 17:52:12,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 17:52:12,588 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:12,589 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:12,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:52:12,592 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:12,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:12,596 INFO L82 PathProgramCache]: Analyzing trace with hash 2139493913, now seen corresponding path program 1 times [2021-03-10 17:52:12,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:12,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251994058] [2021-03-10 17:52:12,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:12,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:12,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251994058] [2021-03-10 17:52:12,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:12,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:12,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496414329] [2021-03-10 17:52:12,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:12,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:12,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:12,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:12,817 INFO L87 Difference]: Start difference. First operand 6155 states and 17050 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:13,122 INFO L93 Difference]: Finished difference Result 9142 states and 25280 transitions. [2021-03-10 17:52:13,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:52:13,123 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-03-10 17:52:13,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,171 INFO L225 Difference]: With dead ends: 9142 [2021-03-10 17:52:13,171 INFO L226 Difference]: Without dead ends: 9142 [2021-03-10 17:52:13,172 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 105.2ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9142 states. [2021-03-10 17:52:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9142 to 6937. [2021-03-10 17:52:13,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6932 states have (on average 2.774379688401616) internal successors, (19232), 6936 states have internal predecessors, (19232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 19232 transitions. [2021-03-10 17:52:13,405 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 19232 transitions. Word has length 60 [2021-03-10 17:52:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:13,407 INFO L480 AbstractCegarLoop]: Abstraction has 6937 states and 19232 transitions. [2021-03-10 17:52:13,407 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 19232 transitions. [2021-03-10 17:52:13,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-03-10 17:52:13,410 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:13,410 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:13,410 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:52:13,411 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:13,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:13,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1121519457, now seen corresponding path program 1 times [2021-03-10 17:52:13,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:13,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258811203] [2021-03-10 17:52:13,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:13,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258811203] [2021-03-10 17:52:13,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:13,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:13,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406144200] [2021-03-10 17:52:13,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:13,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:13,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:13,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:13,541 INFO L87 Difference]: Start difference. First operand 6937 states and 19232 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:13,839 INFO L93 Difference]: Finished difference Result 9924 states and 27315 transitions. [2021-03-10 17:52:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:52:13,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-03-10 17:52:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,858 INFO L225 Difference]: With dead ends: 9924 [2021-03-10 17:52:13,859 INFO L226 Difference]: Without dead ends: 8307 [2021-03-10 17:52:13,859 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 105.4ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:52:13,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8307 states. [2021-03-10 17:52:14,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8307 to 8013. [2021-03-10 17:52:14,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 8009 states have (on average 2.7781246098139594) internal successors, (22250), 8012 states have internal predecessors, (22250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 22250 transitions. [2021-03-10 17:52:14,089 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 22250 transitions. Word has length 66 [2021-03-10 17:52:14,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:14,091 INFO L480 AbstractCegarLoop]: Abstraction has 8013 states and 22250 transitions. [2021-03-10 17:52:14,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,091 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 22250 transitions. [2021-03-10 17:52:14,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-03-10 17:52:14,106 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:14,106 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:14,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:52:14,106 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:14,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:14,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1028415548, now seen corresponding path program 1 times [2021-03-10 17:52:14,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:14,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514165750] [2021-03-10 17:52:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:14,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514165750] [2021-03-10 17:52:14,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:14,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:52:14,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394194680] [2021-03-10 17:52:14,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:52:14,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:14,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:52:14,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:52:14,275 INFO L87 Difference]: Start difference. First operand 8013 states and 22250 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:14,322 INFO L93 Difference]: Finished difference Result 2799 states and 7505 transitions. [2021-03-10 17:52:14,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:52:14,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-03-10 17:52:14,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:14,328 INFO L225 Difference]: With dead ends: 2799 [2021-03-10 17:52:14,328 INFO L226 Difference]: Without dead ends: 2799 [2021-03-10 17:52:14,328 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:52:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-03-10 17:52:14,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-03-10 17:52:14,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 2797 states have (on average 2.6832320343224882) internal successors, (7505), 2798 states have internal predecessors, (7505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 7505 transitions. [2021-03-10 17:52:14,395 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 7505 transitions. Word has length 74 [2021-03-10 17:52:14,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:14,396 INFO L480 AbstractCegarLoop]: Abstraction has 2799 states and 7505 transitions. [2021-03-10 17:52:14,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,396 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 7505 transitions. [2021-03-10 17:52:14,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:14,404 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:14,405 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:14,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:52:14,405 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:14,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:14,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2062557132, now seen corresponding path program 1 times [2021-03-10 17:52:14,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:14,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610240344] [2021-03-10 17:52:14,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:14,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:14,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610240344] [2021-03-10 17:52:14,937 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:14,937 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:14,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664491339] [2021-03-10 17:52:14,937 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:14,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:14,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:14,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:14,938 INFO L87 Difference]: Start difference. First operand 2799 states and 7505 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:15,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:15,741 INFO L93 Difference]: Finished difference Result 3805 states and 9655 transitions. [2021-03-10 17:52:15,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:15,742 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:15,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:15,749 INFO L225 Difference]: With dead ends: 3805 [2021-03-10 17:52:15,749 INFO L226 Difference]: Without dead ends: 3805 [2021-03-10 17:52:15,753 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 653.0ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3805 states. [2021-03-10 17:52:15,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3805 to 3071. [2021-03-10 17:52:15,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3071 states, 3069 states have (on average 2.63603779732812) internal successors, (8090), 3070 states have internal predecessors, (8090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:15,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3071 states to 3071 states and 8090 transitions. [2021-03-10 17:52:15,859 INFO L78 Accepts]: Start accepts. Automaton has 3071 states and 8090 transitions. Word has length 107 [2021-03-10 17:52:15,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:15,859 INFO L480 AbstractCegarLoop]: Abstraction has 3071 states and 8090 transitions. [2021-03-10 17:52:15,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:15,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3071 states and 8090 transitions. [2021-03-10 17:52:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:15,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:15,866 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:15,866 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:52:15,866 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:15,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash 951252770, now seen corresponding path program 2 times [2021-03-10 17:52:15,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:15,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503430012] [2021-03-10 17:52:15,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:16,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503430012] [2021-03-10 17:52:16,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:16,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:16,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448147719] [2021-03-10 17:52:16,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:16,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:16,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:16,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:16,270 INFO L87 Difference]: Start difference. First operand 3071 states and 8090 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:17,083 INFO L93 Difference]: Finished difference Result 3915 states and 10059 transitions. [2021-03-10 17:52:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:17,084 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:17,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:17,091 INFO L225 Difference]: With dead ends: 3915 [2021-03-10 17:52:17,091 INFO L226 Difference]: Without dead ends: 3915 [2021-03-10 17:52:17,092 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 570.2ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-03-10 17:52:17,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2021-03-10 17:52:17,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3456. [2021-03-10 17:52:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3454 states have (on average 2.638390272148234) internal successors, (9113), 3455 states have internal predecessors, (9113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 9113 transitions. [2021-03-10 17:52:17,175 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 9113 transitions. Word has length 107 [2021-03-10 17:52:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:17,175 INFO L480 AbstractCegarLoop]: Abstraction has 3456 states and 9113 transitions. [2021-03-10 17:52:17,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 9113 transitions. [2021-03-10 17:52:17,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:17,183 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:17,183 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:17,183 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:52:17,183 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:17,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:17,184 INFO L82 PathProgramCache]: Analyzing trace with hash 110457364, now seen corresponding path program 3 times [2021-03-10 17:52:17,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:17,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765315524] [2021-03-10 17:52:17,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:17,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:17,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:17,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765315524] [2021-03-10 17:52:17,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:17,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:17,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040572273] [2021-03-10 17:52:17,599 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:17,599 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:17,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:17,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:17,600 INFO L87 Difference]: Start difference. First operand 3456 states and 9113 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:18,432 INFO L93 Difference]: Finished difference Result 4304 states and 10848 transitions. [2021-03-10 17:52:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:18,432 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:18,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:18,439 INFO L225 Difference]: With dead ends: 4304 [2021-03-10 17:52:18,440 INFO L226 Difference]: Without dead ends: 4304 [2021-03-10 17:52:18,440 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 583.0ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4304 states. [2021-03-10 17:52:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 3456. [2021-03-10 17:52:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3456 states, 3454 states have (on average 2.638390272148234) internal successors, (9113), 3455 states have internal predecessors, (9113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3456 states to 3456 states and 9113 transitions. [2021-03-10 17:52:18,518 INFO L78 Accepts]: Start accepts. Automaton has 3456 states and 9113 transitions. Word has length 107 [2021-03-10 17:52:18,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:18,518 INFO L480 AbstractCegarLoop]: Abstraction has 3456 states and 9113 transitions. [2021-03-10 17:52:18,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 3456 states and 9113 transitions. [2021-03-10 17:52:18,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:18,525 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:18,526 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:18,526 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:52:18,526 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:18,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:18,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1968084280, now seen corresponding path program 4 times [2021-03-10 17:52:18,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:18,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702782649] [2021-03-10 17:52:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:18,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:18,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702782649] [2021-03-10 17:52:18,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:18,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:18,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711498183] [2021-03-10 17:52:18,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:18,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:18,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:18,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:18,982 INFO L87 Difference]: Start difference. First operand 3456 states and 9113 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:20,259 INFO L93 Difference]: Finished difference Result 6323 states and 16193 transitions. [2021-03-10 17:52:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:20,268 INFO L225 Difference]: With dead ends: 6323 [2021-03-10 17:52:20,268 INFO L226 Difference]: Without dead ends: 6323 [2021-03-10 17:52:20,269 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1075.4ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6323 states. [2021-03-10 17:52:20,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6323 to 3646. [2021-03-10 17:52:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3644 states have (on average 2.6325466520307352) internal successors, (9593), 3645 states have internal predecessors, (9593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 9593 transitions. [2021-03-10 17:52:20,352 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 9593 transitions. Word has length 107 [2021-03-10 17:52:20,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:20,353 INFO L480 AbstractCegarLoop]: Abstraction has 3646 states and 9593 transitions. [2021-03-10 17:52:20,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 9593 transitions. [2021-03-10 17:52:20,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:20,360 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:20,360 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:20,360 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:52:20,360 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:20,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1492499368, now seen corresponding path program 5 times [2021-03-10 17:52:20,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:20,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122495339] [2021-03-10 17:52:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:20,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:20,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122495339] [2021-03-10 17:52:20,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:20,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:20,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794743902] [2021-03-10 17:52:20,746 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:20,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:20,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:20,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:20,747 INFO L87 Difference]: Start difference. First operand 3646 states and 9593 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:21,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:21,914 INFO L93 Difference]: Finished difference Result 6180 states and 15900 transitions. [2021-03-10 17:52:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:21,914 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:21,921 INFO L225 Difference]: With dead ends: 6180 [2021-03-10 17:52:21,921 INFO L226 Difference]: Without dead ends: 6180 [2021-03-10 17:52:21,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 994.3ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:21,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6180 states. [2021-03-10 17:52:22,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6180 to 4196. [2021-03-10 17:52:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 4194 states have (on average 2.6676204101096803) internal successors, (11188), 4195 states have internal predecessors, (11188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 11188 transitions. [2021-03-10 17:52:22,016 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 11188 transitions. Word has length 107 [2021-03-10 17:52:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:22,016 INFO L480 AbstractCegarLoop]: Abstraction has 4196 states and 11188 transitions. [2021-03-10 17:52:22,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 11188 transitions. [2021-03-10 17:52:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:22,024 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:22,025 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:22,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:52:22,025 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash -429111936, now seen corresponding path program 6 times [2021-03-10 17:52:22,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:22,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128081680] [2021-03-10 17:52:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:22,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:22,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128081680] [2021-03-10 17:52:22,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:22,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:22,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784432455] [2021-03-10 17:52:22,444 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:22,444 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:22,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:22,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:22,445 INFO L87 Difference]: Start difference. First operand 4196 states and 11188 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:23,909 INFO L93 Difference]: Finished difference Result 5935 states and 15191 transitions. [2021-03-10 17:52:23,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:23,910 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:23,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:23,915 INFO L225 Difference]: With dead ends: 5935 [2021-03-10 17:52:23,915 INFO L226 Difference]: Without dead ends: 5935 [2021-03-10 17:52:23,916 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1098.8ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:23,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5935 states. [2021-03-10 17:52:23,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5935 to 4196. [2021-03-10 17:52:24,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 4194 states have (on average 2.6676204101096803) internal successors, (11188), 4195 states have internal predecessors, (11188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:24,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 11188 transitions. [2021-03-10 17:52:24,009 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 11188 transitions. Word has length 107 [2021-03-10 17:52:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:24,010 INFO L480 AbstractCegarLoop]: Abstraction has 4196 states and 11188 transitions. [2021-03-10 17:52:24,010 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 11188 transitions. [2021-03-10 17:52:24,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:24,043 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:24,043 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:24,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:52:24,044 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:24,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:24,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1466982276, now seen corresponding path program 7 times [2021-03-10 17:52:24,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:24,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355981101] [2021-03-10 17:52:24,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:24,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:24,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355981101] [2021-03-10 17:52:24,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:24,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:24,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136623996] [2021-03-10 17:52:24,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:24,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:24,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:24,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:24,374 INFO L87 Difference]: Start difference. First operand 4196 states and 11188 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:25,020 INFO L93 Difference]: Finished difference Result 4650 states and 12123 transitions. [2021-03-10 17:52:25,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:52:25,021 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:25,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:25,025 INFO L225 Difference]: With dead ends: 4650 [2021-03-10 17:52:25,026 INFO L226 Difference]: Without dead ends: 4650 [2021-03-10 17:52:25,026 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 502.3ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:25,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4650 states. [2021-03-10 17:52:25,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4650 to 4064. [2021-03-10 17:52:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4064 states, 4062 states have (on average 2.6774987690792713) internal successors, (10876), 4063 states have internal predecessors, (10876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4064 states to 4064 states and 10876 transitions. [2021-03-10 17:52:25,104 INFO L78 Accepts]: Start accepts. Automaton has 4064 states and 10876 transitions. Word has length 107 [2021-03-10 17:52:25,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:25,104 INFO L480 AbstractCegarLoop]: Abstraction has 4064 states and 10876 transitions. [2021-03-10 17:52:25,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4064 states and 10876 transitions. [2021-03-10 17:52:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:25,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:25,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:25,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:52:25,112 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash -2099370806, now seen corresponding path program 8 times [2021-03-10 17:52:25,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:25,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32802299] [2021-03-10 17:52:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:25,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32802299] [2021-03-10 17:52:25,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:25,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:25,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436758380] [2021-03-10 17:52:25,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:25,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:25,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:25,521 INFO L87 Difference]: Start difference. First operand 4064 states and 10876 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:26,558 INFO L93 Difference]: Finished difference Result 5107 states and 13052 transitions. [2021-03-10 17:52:26,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:26,558 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:26,563 INFO L225 Difference]: With dead ends: 5107 [2021-03-10 17:52:26,563 INFO L226 Difference]: Without dead ends: 5107 [2021-03-10 17:52:26,564 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 824.9ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:26,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2021-03-10 17:52:26,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 4094. [2021-03-10 17:52:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 4092 states have (on average 2.676197458455523) internal successors, (10951), 4093 states have internal predecessors, (10951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 10951 transitions. [2021-03-10 17:52:26,647 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 10951 transitions. Word has length 107 [2021-03-10 17:52:26,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:26,647 INFO L480 AbstractCegarLoop]: Abstraction has 4094 states and 10951 transitions. [2021-03-10 17:52:26,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 10951 transitions. [2021-03-10 17:52:26,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:26,654 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:26,654 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:26,654 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-10 17:52:26,654 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:26,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:26,654 INFO L82 PathProgramCache]: Analyzing trace with hash -309405528, now seen corresponding path program 9 times [2021-03-10 17:52:26,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:26,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692488931] [2021-03-10 17:52:26,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:27,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:27,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692488931] [2021-03-10 17:52:27,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:27,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:27,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506938562] [2021-03-10 17:52:27,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:27,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:27,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:27,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:27,095 INFO L87 Difference]: Start difference. First operand 4094 states and 10951 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:28,465 INFO L93 Difference]: Finished difference Result 8311 states and 21333 transitions. [2021-03-10 17:52:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:28,465 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:28,472 INFO L225 Difference]: With dead ends: 8311 [2021-03-10 17:52:28,473 INFO L226 Difference]: Without dead ends: 8311 [2021-03-10 17:52:28,473 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1085.2ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:28,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8311 states. [2021-03-10 17:52:28,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8311 to 4160. [2021-03-10 17:52:28,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4160 states, 4158 states have (on average 2.6813371813371814) internal successors, (11149), 4159 states have internal predecessors, (11149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4160 states to 4160 states and 11149 transitions. [2021-03-10 17:52:28,580 INFO L78 Accepts]: Start accepts. Automaton has 4160 states and 11149 transitions. Word has length 107 [2021-03-10 17:52:28,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:28,581 INFO L480 AbstractCegarLoop]: Abstraction has 4160 states and 11149 transitions. [2021-03-10 17:52:28,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,581 INFO L276 IsEmpty]: Start isEmpty. Operand 4160 states and 11149 transitions. [2021-03-10 17:52:28,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:28,587 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:28,588 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:28,588 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-10 17:52:28,588 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:28,588 INFO L82 PathProgramCache]: Analyzing trace with hash 166179384, now seen corresponding path program 10 times [2021-03-10 17:52:28,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:28,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17108287] [2021-03-10 17:52:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:29,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17108287] [2021-03-10 17:52:29,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:29,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:29,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839725258] [2021-03-10 17:52:29,009 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:29,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:29,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:29,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:29,010 INFO L87 Difference]: Start difference. First operand 4160 states and 11149 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:30,486 INFO L93 Difference]: Finished difference Result 9838 states and 25545 transitions. [2021-03-10 17:52:30,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:30,486 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:30,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:30,495 INFO L225 Difference]: With dead ends: 9838 [2021-03-10 17:52:30,495 INFO L226 Difference]: Without dead ends: 9838 [2021-03-10 17:52:30,496 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1197.3ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:30,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9838 states. [2021-03-10 17:52:30,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9838 to 4325. [2021-03-10 17:52:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4325 states, 4323 states have (on average 2.693499884339579) internal successors, (11644), 4324 states have internal predecessors, (11644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4325 states to 4325 states and 11644 transitions. [2021-03-10 17:52:30,606 INFO L78 Accepts]: Start accepts. Automaton has 4325 states and 11644 transitions. Word has length 107 [2021-03-10 17:52:30,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:30,606 INFO L480 AbstractCegarLoop]: Abstraction has 4325 states and 11644 transitions. [2021-03-10 17:52:30,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4325 states and 11644 transitions. [2021-03-10 17:52:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:30,613 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:30,613 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:30,613 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-10 17:52:30,614 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:30,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1229566816, now seen corresponding path program 11 times [2021-03-10 17:52:30,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:30,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252928939] [2021-03-10 17:52:30,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:31,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:31,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252928939] [2021-03-10 17:52:31,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:31,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:31,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976386075] [2021-03-10 17:52:31,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:31,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:31,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:31,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:31,078 INFO L87 Difference]: Start difference. First operand 4325 states and 11644 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:32,564 INFO L93 Difference]: Finished difference Result 9623 states and 24911 transitions. [2021-03-10 17:52:32,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:32,564 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:32,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:32,575 INFO L225 Difference]: With dead ends: 9623 [2021-03-10 17:52:32,575 INFO L226 Difference]: Without dead ends: 9623 [2021-03-10 17:52:32,576 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 1223.4ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:32,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9623 states. [2021-03-10 17:52:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9623 to 4105. [2021-03-10 17:52:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4105 states, 4103 states have (on average 2.6770655617840604) internal successors, (10984), 4104 states have internal predecessors, (10984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 10984 transitions. [2021-03-10 17:52:32,677 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 10984 transitions. Word has length 107 [2021-03-10 17:52:32,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:32,677 INFO L480 AbstractCegarLoop]: Abstraction has 4105 states and 10984 transitions. [2021-03-10 17:52:32,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 10984 transitions. [2021-03-10 17:52:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:32,684 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:32,684 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:32,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-10 17:52:32,684 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:32,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:32,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1720804680, now seen corresponding path program 12 times [2021-03-10 17:52:32,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:32,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271361227] [2021-03-10 17:52:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:33,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271361227] [2021-03-10 17:52:33,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:33,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:33,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060670371] [2021-03-10 17:52:33,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:33,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:33,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:33,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:33,095 INFO L87 Difference]: Start difference. First operand 4105 states and 10984 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:34,327 INFO L93 Difference]: Finished difference Result 7805 states and 19884 transitions. [2021-03-10 17:52:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:34,328 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:34,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:34,335 INFO L225 Difference]: With dead ends: 7805 [2021-03-10 17:52:34,335 INFO L226 Difference]: Without dead ends: 7805 [2021-03-10 17:52:34,335 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1017.2ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:34,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7805 states. [2021-03-10 17:52:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7805 to 4107. [2021-03-10 17:52:34,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4107 states, 4105 states have (on average 2.676979293544458) internal successors, (10989), 4106 states have internal predecessors, (10989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 10989 transitions. [2021-03-10 17:52:34,434 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 10989 transitions. Word has length 107 [2021-03-10 17:52:34,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:34,435 INFO L480 AbstractCegarLoop]: Abstraction has 4107 states and 10989 transitions. [2021-03-10 17:52:34,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 10989 transitions. [2021-03-10 17:52:34,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:34,441 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:34,441 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:34,441 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-10 17:52:34,441 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:34,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:34,442 INFO L82 PathProgramCache]: Analyzing trace with hash 681305068, now seen corresponding path program 13 times [2021-03-10 17:52:34,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:34,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401469043] [2021-03-10 17:52:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:34,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:34,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:34,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401469043] [2021-03-10 17:52:34,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:34,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:34,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493202768] [2021-03-10 17:52:34,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:34,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:34,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:34,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:34,749 INFO L87 Difference]: Start difference. First operand 4107 states and 10989 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:35,360 INFO L93 Difference]: Finished difference Result 5633 states and 14193 transitions. [2021-03-10 17:52:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:35,361 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:35,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:35,365 INFO L225 Difference]: With dead ends: 5633 [2021-03-10 17:52:35,366 INFO L226 Difference]: Without dead ends: 5633 [2021-03-10 17:52:35,366 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 511.7ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:35,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5633 states. [2021-03-10 17:52:35,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5633 to 4194. [2021-03-10 17:52:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4194 states, 4192 states have (on average 2.672232824427481) internal successors, (11202), 4193 states have internal predecessors, (11202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4194 states to 4194 states and 11202 transitions. [2021-03-10 17:52:35,436 INFO L78 Accepts]: Start accepts. Automaton has 4194 states and 11202 transitions. Word has length 107 [2021-03-10 17:52:35,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:35,436 INFO L480 AbstractCegarLoop]: Abstraction has 4194 states and 11202 transitions. [2021-03-10 17:52:35,436 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 4194 states and 11202 transitions. [2021-03-10 17:52:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:35,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:35,443 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:35,443 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 17:52:35,444 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:35,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:35,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1814496900, now seen corresponding path program 14 times [2021-03-10 17:52:35,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:35,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484326059] [2021-03-10 17:52:35,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:35,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:35,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484326059] [2021-03-10 17:52:35,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:35,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:35,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040463983] [2021-03-10 17:52:35,896 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:35,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:35,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:35,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:35,897 INFO L87 Difference]: Start difference. First operand 4194 states and 11202 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:37,240 INFO L93 Difference]: Finished difference Result 7955 states and 20288 transitions. [2021-03-10 17:52:37,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:37,240 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:37,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:37,247 INFO L225 Difference]: With dead ends: 7955 [2021-03-10 17:52:37,248 INFO L226 Difference]: Without dead ends: 7955 [2021-03-10 17:52:37,248 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1071.4ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:37,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2021-03-10 17:52:37,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 4204. [2021-03-10 17:52:37,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4204 states, 4202 states have (on average 2.6718229414564494) internal successors, (11227), 4203 states have internal predecessors, (11227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4204 states to 4204 states and 11227 transitions. [2021-03-10 17:52:37,324 INFO L78 Accepts]: Start accepts. Automaton has 4204 states and 11227 transitions. Word has length 107 [2021-03-10 17:52:37,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:37,324 INFO L480 AbstractCegarLoop]: Abstraction has 4204 states and 11227 transitions. [2021-03-10 17:52:37,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,324 INFO L276 IsEmpty]: Start isEmpty. Operand 4204 states and 11227 transitions. [2021-03-10 17:52:37,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:37,331 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:37,331 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:37,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-10 17:52:37,331 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:37,332 INFO L82 PathProgramCache]: Analyzing trace with hash -895779294, now seen corresponding path program 15 times [2021-03-10 17:52:37,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:37,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855034369] [2021-03-10 17:52:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:37,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855034369] [2021-03-10 17:52:37,637 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:37,637 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:37,637 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971995377] [2021-03-10 17:52:37,638 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:37,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:37,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:37,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:37,639 INFO L87 Difference]: Start difference. First operand 4204 states and 11227 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:38,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:38,522 INFO L93 Difference]: Finished difference Result 6149 states and 15706 transitions. [2021-03-10 17:52:38,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:38,522 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:38,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:38,529 INFO L225 Difference]: With dead ends: 6149 [2021-03-10 17:52:38,529 INFO L226 Difference]: Without dead ends: 6149 [2021-03-10 17:52:38,530 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 625.7ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6149 states. [2021-03-10 17:52:38,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6149 to 4039. [2021-03-10 17:52:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4039 states, 4037 states have (on average 2.666584097101808) internal successors, (10765), 4038 states have internal predecessors, (10765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:38,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 10765 transitions. [2021-03-10 17:52:38,605 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 10765 transitions. Word has length 107 [2021-03-10 17:52:38,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:38,605 INFO L480 AbstractCegarLoop]: Abstraction has 4039 states and 10765 transitions. [2021-03-10 17:52:38,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:38,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 10765 transitions. [2021-03-10 17:52:38,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:38,610 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:38,610 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:38,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-10 17:52:38,610 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:38,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:38,611 INFO L82 PathProgramCache]: Analyzing trace with hash -410756114, now seen corresponding path program 16 times [2021-03-10 17:52:38,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:38,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644319870] [2021-03-10 17:52:38,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:39,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644319870] [2021-03-10 17:52:39,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:39,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:39,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104861503] [2021-03-10 17:52:39,044 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:39,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:39,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:39,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:39,045 INFO L87 Difference]: Start difference. First operand 4039 states and 10765 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:40,453 INFO L93 Difference]: Finished difference Result 7480 states and 19212 transitions. [2021-03-10 17:52:40,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:40,454 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:40,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:40,460 INFO L225 Difference]: With dead ends: 7480 [2021-03-10 17:52:40,461 INFO L226 Difference]: Without dead ends: 7480 [2021-03-10 17:52:40,461 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1171.6ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:40,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7480 states. [2021-03-10 17:52:40,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7480 to 4094. [2021-03-10 17:52:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 4092 states have (on average 2.6710654936461387) internal successors, (10930), 4093 states have internal predecessors, (10930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 10930 transitions. [2021-03-10 17:52:40,519 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 10930 transitions. Word has length 107 [2021-03-10 17:52:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:40,520 INFO L480 AbstractCegarLoop]: Abstraction has 4094 states and 10930 transitions. [2021-03-10 17:52:40,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,520 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 10930 transitions. [2021-03-10 17:52:40,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:40,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:40,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:40,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-10 17:52:40,525 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:40,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:40,525 INFO L82 PathProgramCache]: Analyzing trace with hash -989470322, now seen corresponding path program 17 times [2021-03-10 17:52:40,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:40,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991679370] [2021-03-10 17:52:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:40,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:40,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991679370] [2021-03-10 17:52:40,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:40,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:40,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671888424] [2021-03-10 17:52:40,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:40,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:40,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:40,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:40,936 INFO L87 Difference]: Start difference. First operand 4094 states and 10930 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:42,437 INFO L93 Difference]: Finished difference Result 8391 states and 21656 transitions. [2021-03-10 17:52:42,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:42,438 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:42,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:42,445 INFO L225 Difference]: With dead ends: 8391 [2021-03-10 17:52:42,445 INFO L226 Difference]: Without dead ends: 8391 [2021-03-10 17:52:42,446 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1196.5ms TimeCoverageRelationStatistics Valid=290, Invalid=832, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:42,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2021-03-10 17:52:42,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 4094. [2021-03-10 17:52:42,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4094 states, 4092 states have (on average 2.6710654936461387) internal successors, (10930), 4093 states have internal predecessors, (10930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4094 states to 4094 states and 10930 transitions. [2021-03-10 17:52:42,511 INFO L78 Accepts]: Start accepts. Automaton has 4094 states and 10930 transitions. Word has length 107 [2021-03-10 17:52:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:42,511 INFO L480 AbstractCegarLoop]: Abstraction has 4094 states and 10930 transitions. [2021-03-10 17:52:42,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 4094 states and 10930 transitions. [2021-03-10 17:52:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:42,515 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:42,515 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:42,515 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-10 17:52:42,515 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:42,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:42,516 INFO L82 PathProgramCache]: Analyzing trace with hash -879935386, now seen corresponding path program 18 times [2021-03-10 17:52:42,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:42,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485365795] [2021-03-10 17:52:42,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:42,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:42,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485365795] [2021-03-10 17:52:42,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:42,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:42,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812391229] [2021-03-10 17:52:42,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:42,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:42,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:42,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:42,913 INFO L87 Difference]: Start difference. First operand 4094 states and 10930 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:43,929 INFO L93 Difference]: Finished difference Result 5668 states and 14236 transitions. [2021-03-10 17:52:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:43,929 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:43,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:43,935 INFO L225 Difference]: With dead ends: 5668 [2021-03-10 17:52:43,935 INFO L226 Difference]: Without dead ends: 5668 [2021-03-10 17:52:43,935 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 830.8ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:43,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5668 states. [2021-03-10 17:52:44,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5668 to 4076. [2021-03-10 17:52:44,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 4074 states have (on average 2.6718213058419242) internal successors, (10885), 4075 states have internal predecessors, (10885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 10885 transitions. [2021-03-10 17:52:44,013 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 10885 transitions. Word has length 107 [2021-03-10 17:52:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:44,013 INFO L480 AbstractCegarLoop]: Abstraction has 4076 states and 10885 transitions. [2021-03-10 17:52:44,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:44,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 10885 transitions. [2021-03-10 17:52:44,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:44,018 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:44,018 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:44,018 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-10 17:52:44,018 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:44,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:44,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1669803864, now seen corresponding path program 19 times [2021-03-10 17:52:44,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:44,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890838073] [2021-03-10 17:52:44,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:44,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:44,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890838073] [2021-03-10 17:52:44,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:44,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:44,393 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513252889] [2021-03-10 17:52:44,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:44,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:44,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:44,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:44,394 INFO L87 Difference]: Start difference. First operand 4076 states and 10885 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:45,357 INFO L93 Difference]: Finished difference Result 5865 states and 14632 transitions. [2021-03-10 17:52:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:45,357 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:45,362 INFO L225 Difference]: With dead ends: 5865 [2021-03-10 17:52:45,362 INFO L226 Difference]: Without dead ends: 5865 [2021-03-10 17:52:45,362 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 807.0ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:45,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2021-03-10 17:52:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 4078. [2021-03-10 17:52:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4078 states, 4076 states have (on average 2.671736997055937) internal successors, (10890), 4077 states have internal predecessors, (10890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4078 states to 4078 states and 10890 transitions. [2021-03-10 17:52:45,414 INFO L78 Accepts]: Start accepts. Automaton has 4078 states and 10890 transitions. Word has length 107 [2021-03-10 17:52:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:45,414 INFO L480 AbstractCegarLoop]: Abstraction has 4078 states and 10890 transitions. [2021-03-10 17:52:45,414 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4078 states and 10890 transitions. [2021-03-10 17:52:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:45,418 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:45,418 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:45,418 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-10 17:52:45,418 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:45,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:45,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1576111644, now seen corresponding path program 20 times [2021-03-10 17:52:45,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:45,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834671001] [2021-03-10 17:52:45,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:45,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834671001] [2021-03-10 17:52:45,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:45,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:45,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858828959] [2021-03-10 17:52:45,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:45,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:45,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:45,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:45,846 INFO L87 Difference]: Start difference. First operand 4078 states and 10890 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:46,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:46,989 INFO L93 Difference]: Finished difference Result 5370 states and 13583 transitions. [2021-03-10 17:52:46,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:46,990 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:46,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:46,994 INFO L225 Difference]: With dead ends: 5370 [2021-03-10 17:52:46,994 INFO L226 Difference]: Without dead ends: 5370 [2021-03-10 17:52:46,995 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1010.9ms TimeCoverageRelationStatistics Valid=277, Invalid=913, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:47,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5370 states. [2021-03-10 17:52:47,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5370 to 4076. [2021-03-10 17:52:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 4074 states have (on average 2.6718213058419242) internal successors, (10885), 4075 states have internal predecessors, (10885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:47,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 10885 transitions. [2021-03-10 17:52:47,049 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 10885 transitions. Word has length 107 [2021-03-10 17:52:47,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:47,050 INFO L480 AbstractCegarLoop]: Abstraction has 4076 states and 10885 transitions. [2021-03-10 17:52:47,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:47,050 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 10885 transitions. [2021-03-10 17:52:47,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:47,053 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:47,053 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:47,053 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-10 17:52:47,053 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:47,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:47,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1829724932, now seen corresponding path program 21 times [2021-03-10 17:52:47,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:47,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239384178] [2021-03-10 17:52:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:47,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:47,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239384178] [2021-03-10 17:52:47,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:47,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:47,419 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154488126] [2021-03-10 17:52:47,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:47,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:47,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:47,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:47,420 INFO L87 Difference]: Start difference. First operand 4076 states and 10885 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:48,802 INFO L93 Difference]: Finished difference Result 6594 states and 16766 transitions. [2021-03-10 17:52:48,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:48,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:48,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:48,808 INFO L225 Difference]: With dead ends: 6594 [2021-03-10 17:52:48,808 INFO L226 Difference]: Without dead ends: 6594 [2021-03-10 17:52:48,808 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1123.4ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:48,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6594 states. [2021-03-10 17:52:48,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6594 to 4076. [2021-03-10 17:52:48,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4076 states, 4074 states have (on average 2.6718213058419242) internal successors, (10885), 4075 states have internal predecessors, (10885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4076 states to 4076 states and 10885 transitions. [2021-03-10 17:52:48,861 INFO L78 Accepts]: Start accepts. Automaton has 4076 states and 10885 transitions. Word has length 107 [2021-03-10 17:52:48,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:48,862 INFO L480 AbstractCegarLoop]: Abstraction has 4076 states and 10885 transitions. [2021-03-10 17:52:48,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4076 states and 10885 transitions. [2021-03-10 17:52:48,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:48,865 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:48,865 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:48,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-10 17:52:48,867 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:48,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:48,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1989657452, now seen corresponding path program 22 times [2021-03-10 17:52:48,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:48,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966170845] [2021-03-10 17:52:48,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:49,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:49,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966170845] [2021-03-10 17:52:49,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:49,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:49,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855920175] [2021-03-10 17:52:49,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:49,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:49,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:49,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:49,258 INFO L87 Difference]: Start difference. First operand 4076 states and 10885 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:50,525 INFO L93 Difference]: Finished difference Result 8231 states and 21295 transitions. [2021-03-10 17:52:50,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:50,525 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:50,532 INFO L225 Difference]: With dead ends: 8231 [2021-03-10 17:52:50,532 INFO L226 Difference]: Without dead ends: 8231 [2021-03-10 17:52:50,533 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1116.6ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:50,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8231 states. [2021-03-10 17:52:50,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8231 to 4241. [2021-03-10 17:52:50,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4241 states, 4239 states have (on average 2.6845954234489264) internal successors, (11380), 4240 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4241 states to 4241 states and 11380 transitions. [2021-03-10 17:52:50,600 INFO L78 Accepts]: Start accepts. Automaton has 4241 states and 11380 transitions. Word has length 107 [2021-03-10 17:52:50,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:50,600 INFO L480 AbstractCegarLoop]: Abstraction has 4241 states and 11380 transitions. [2021-03-10 17:52:50,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,601 INFO L276 IsEmpty]: Start isEmpty. Operand 4241 states and 11380 transitions. [2021-03-10 17:52:50,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:50,604 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:50,604 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:50,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-10 17:52:50,605 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:50,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:50,605 INFO L82 PathProgramCache]: Analyzing trace with hash -926270020, now seen corresponding path program 23 times [2021-03-10 17:52:50,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:50,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821543691] [2021-03-10 17:52:50,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:51,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:51,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821543691] [2021-03-10 17:52:51,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:51,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:51,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135785102] [2021-03-10 17:52:51,007 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:51,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:51,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:51,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:51,008 INFO L87 Difference]: Start difference. First operand 4241 states and 11380 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:52,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:52,323 INFO L93 Difference]: Finished difference Result 7831 states and 20188 transitions. [2021-03-10 17:52:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:52,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:52,330 INFO L225 Difference]: With dead ends: 7831 [2021-03-10 17:52:52,330 INFO L226 Difference]: Without dead ends: 7831 [2021-03-10 17:52:52,331 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1135.7ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:52,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7831 states. [2021-03-10 17:52:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 4021. [2021-03-10 17:52:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 4019 states have (on average 2.6673301816372232) internal successors, (10720), 4020 states have internal predecessors, (10720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:52,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 10720 transitions. [2021-03-10 17:52:52,389 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 10720 transitions. Word has length 107 [2021-03-10 17:52:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:52,389 INFO L480 AbstractCegarLoop]: Abstraction has 4021 states and 10720 transitions. [2021-03-10 17:52:52,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 10720 transitions. [2021-03-10 17:52:52,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:52,394 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:52,394 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:52,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-10 17:52:52,395 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:52,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:52,395 INFO L82 PathProgramCache]: Analyzing trace with hash -435032156, now seen corresponding path program 24 times [2021-03-10 17:52:52,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:52,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280731745] [2021-03-10 17:52:52,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:52,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:52,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280731745] [2021-03-10 17:52:52,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:52,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:52,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599461094] [2021-03-10 17:52:52,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:52,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:52,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:52,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:52,769 INFO L87 Difference]: Start difference. First operand 4021 states and 10720 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:53,945 INFO L93 Difference]: Finished difference Result 7303 states and 18510 transitions. [2021-03-10 17:52:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:53,951 INFO L225 Difference]: With dead ends: 7303 [2021-03-10 17:52:53,951 INFO L226 Difference]: Without dead ends: 7303 [2021-03-10 17:52:53,952 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 990.0ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:53,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7303 states. [2021-03-10 17:52:54,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7303 to 4015. [2021-03-10 17:52:54,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4015 states, 4013 states have (on average 2.667580363817593) internal successors, (10705), 4014 states have internal predecessors, (10705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4015 states to 4015 states and 10705 transitions. [2021-03-10 17:52:54,033 INFO L78 Accepts]: Start accepts. Automaton has 4015 states and 10705 transitions. Word has length 107 [2021-03-10 17:52:54,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:54,033 INFO L480 AbstractCegarLoop]: Abstraction has 4015 states and 10705 transitions. [2021-03-10 17:52:54,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4015 states and 10705 transitions. [2021-03-10 17:52:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:54,037 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:54,037 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:54,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-10 17:52:54,038 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:54,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:54,038 INFO L82 PathProgramCache]: Analyzing trace with hash -341339936, now seen corresponding path program 25 times [2021-03-10 17:52:54,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:54,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824932481] [2021-03-10 17:52:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:54,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824932481] [2021-03-10 17:52:54,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:54,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:54,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492990375] [2021-03-10 17:52:54,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:54,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:54,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:54,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:54,402 INFO L87 Difference]: Start difference. First operand 4015 states and 10705 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:55,617 INFO L93 Difference]: Finished difference Result 7138 states and 18176 transitions. [2021-03-10 17:52:55,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:55,618 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:55,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:55,624 INFO L225 Difference]: With dead ends: 7138 [2021-03-10 17:52:55,624 INFO L226 Difference]: Without dead ends: 7138 [2021-03-10 17:52:55,624 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 1013.4ms TimeCoverageRelationStatistics Valid=289, Invalid=901, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:55,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7138 states. [2021-03-10 17:52:55,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7138 to 4013. [2021-03-10 17:52:55,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4013 states, 4011 states have (on average 2.667663924208427) internal successors, (10700), 4012 states have internal predecessors, (10700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4013 states to 4013 states and 10700 transitions. [2021-03-10 17:52:55,679 INFO L78 Accepts]: Start accepts. Automaton has 4013 states and 10700 transitions. Word has length 107 [2021-03-10 17:52:55,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:55,679 INFO L480 AbstractCegarLoop]: Abstraction has 4013 states and 10700 transitions. [2021-03-10 17:52:55,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:55,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4013 states and 10700 transitions. [2021-03-10 17:52:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:55,683 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:55,683 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:55,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-10 17:52:55,683 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:55,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1728374346, now seen corresponding path program 26 times [2021-03-10 17:52:55,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:55,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715099803] [2021-03-10 17:52:55,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:56,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715099803] [2021-03-10 17:52:56,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:56,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:56,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943465193] [2021-03-10 17:52:56,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:56,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:56,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:56,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:56,098 INFO L87 Difference]: Start difference. First operand 4013 states and 10700 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:57,480 INFO L93 Difference]: Finished difference Result 9241 states and 23785 transitions. [2021-03-10 17:52:57,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:57,481 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:57,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:57,488 INFO L225 Difference]: With dead ends: 9241 [2021-03-10 17:52:57,488 INFO L226 Difference]: Without dead ends: 9241 [2021-03-10 17:52:57,489 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 1117.7ms TimeCoverageRelationStatistics Valid=300, Invalid=890, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:57,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9241 states. [2021-03-10 17:52:57,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9241 to 4068. [2021-03-10 17:52:57,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4068 states, 4066 states have (on average 2.6721593703885884) internal successors, (10865), 4067 states have internal predecessors, (10865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4068 states to 4068 states and 10865 transitions. [2021-03-10 17:52:57,554 INFO L78 Accepts]: Start accepts. Automaton has 4068 states and 10865 transitions. Word has length 107 [2021-03-10 17:52:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:57,554 INFO L480 AbstractCegarLoop]: Abstraction has 4068 states and 10865 transitions. [2021-03-10 17:52:57,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4068 states and 10865 transitions. [2021-03-10 17:52:57,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:57,559 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:57,559 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:57,559 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-10 17:52:57,559 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:57,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:57,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1149660138, now seen corresponding path program 27 times [2021-03-10 17:52:57,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:57,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559135524] [2021-03-10 17:52:57,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:57,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:57,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:57,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559135524] [2021-03-10 17:52:57,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:57,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:52:57,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028965645] [2021-03-10 17:52:57,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:52:57,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:57,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:52:57,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:52:57,975 INFO L87 Difference]: Start difference. First operand 4068 states and 10865 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:59,346 INFO L93 Difference]: Finished difference Result 10122 states and 26154 transitions. [2021-03-10 17:52:59,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:59,346 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:52:59,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:59,355 INFO L225 Difference]: With dead ends: 10122 [2021-03-10 17:52:59,355 INFO L226 Difference]: Without dead ends: 10122 [2021-03-10 17:52:59,356 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1137.5ms TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10122 states. [2021-03-10 17:52:59,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10122 to 4002. [2021-03-10 17:52:59,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4002 states, 4000 states have (on average 2.66675) internal successors, (10667), 4001 states have internal predecessors, (10667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:59,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4002 states to 4002 states and 10667 transitions. [2021-03-10 17:52:59,435 INFO L78 Accepts]: Start accepts. Automaton has 4002 states and 10667 transitions. Word has length 107 [2021-03-10 17:52:59,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:59,435 INFO L480 AbstractCegarLoop]: Abstraction has 4002 states and 10667 transitions. [2021-03-10 17:52:59,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4002 states and 10667 transitions. [2021-03-10 17:52:59,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:52:59,438 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:59,439 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:59,439 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-10 17:52:59,439 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1460213572, now seen corresponding path program 28 times [2021-03-10 17:52:59,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:59,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461960481] [2021-03-10 17:52:59,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:59,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:59,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461960481] [2021-03-10 17:52:59,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:59,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:59,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855909572] [2021-03-10 17:52:59,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:59,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:59,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:59,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:59,783 INFO L87 Difference]: Start difference. First operand 4002 states and 10667 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:00,872 INFO L93 Difference]: Finished difference Result 5595 states and 14025 transitions. [2021-03-10 17:53:00,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:00,873 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:00,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:00,878 INFO L225 Difference]: With dead ends: 5595 [2021-03-10 17:53:00,878 INFO L226 Difference]: Without dead ends: 5595 [2021-03-10 17:53:00,878 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 938.1ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:00,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5595 states. [2021-03-10 17:53:00,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5595 to 4010. [2021-03-10 17:53:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4010 states, 4008 states have (on average 2.666417165668663) internal successors, (10687), 4009 states have internal predecessors, (10687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 10687 transitions. [2021-03-10 17:53:00,931 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 10687 transitions. Word has length 107 [2021-03-10 17:53:00,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:00,932 INFO L480 AbstractCegarLoop]: Abstraction has 4010 states and 10687 transitions. [2021-03-10 17:53:00,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 10687 transitions. [2021-03-10 17:53:00,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:00,935 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:00,935 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:00,936 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-10 17:53:00,936 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:00,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:00,936 INFO L82 PathProgramCache]: Analyzing trace with hash 420713960, now seen corresponding path program 29 times [2021-03-10 17:53:00,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:00,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160983276] [2021-03-10 17:53:00,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:01,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:01,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160983276] [2021-03-10 17:53:01,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:01,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:53:01,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117435451] [2021-03-10 17:53:01,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:53:01,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:01,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:53:01,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:53:01,244 INFO L87 Difference]: Start difference. First operand 4010 states and 10687 transitions. Second operand has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:01,886 INFO L93 Difference]: Finished difference Result 4858 states and 12438 transitions. [2021-03-10 17:53:01,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:53:01,887 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:01,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:01,891 INFO L225 Difference]: With dead ends: 4858 [2021-03-10 17:53:01,891 INFO L226 Difference]: Without dead ends: 4858 [2021-03-10 17:53:01,891 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 505.2ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:53:01,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2021-03-10 17:53:01,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 3910. [2021-03-10 17:53:01,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3910 states, 3908 states have (on average 2.675281473899693) internal successors, (10455), 3909 states have internal predecessors, (10455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 10455 transitions. [2021-03-10 17:53:01,942 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 10455 transitions. Word has length 107 [2021-03-10 17:53:01,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:01,942 INFO L480 AbstractCegarLoop]: Abstraction has 3910 states and 10455 transitions. [2021-03-10 17:53:01,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.133333333333334) internal successors, (107), 15 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,942 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 10455 transitions. [2021-03-10 17:53:01,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:01,946 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:01,946 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:01,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-10 17:53:01,946 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:01,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:01,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1553905792, now seen corresponding path program 30 times [2021-03-10 17:53:01,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:01,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004971243] [2021-03-10 17:53:01,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:02,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:02,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004971243] [2021-03-10 17:53:02,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:02,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:02,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262883139] [2021-03-10 17:53:02,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:02,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:02,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:02,374 INFO L87 Difference]: Start difference. First operand 3910 states and 10455 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:03,513 INFO L93 Difference]: Finished difference Result 5925 states and 14740 transitions. [2021-03-10 17:53:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:03,513 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:03,519 INFO L225 Difference]: With dead ends: 5925 [2021-03-10 17:53:03,520 INFO L226 Difference]: Without dead ends: 5925 [2021-03-10 17:53:03,520 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 914.1ms TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:03,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5925 states. [2021-03-10 17:53:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5925 to 3908. [2021-03-10 17:53:03,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 3906 states have (on average 2.6753712237583205) internal successors, (10450), 3907 states have internal predecessors, (10450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 10450 transitions. [2021-03-10 17:53:03,594 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 10450 transitions. Word has length 107 [2021-03-10 17:53:03,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:03,594 INFO L480 AbstractCegarLoop]: Abstraction has 3908 states and 10450 transitions. [2021-03-10 17:53:03,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 10450 transitions. [2021-03-10 17:53:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:03,598 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:03,599 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:03,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-10 17:53:03,600 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:03,600 INFO L82 PathProgramCache]: Analyzing trace with hash 698591916, now seen corresponding path program 31 times [2021-03-10 17:53:03,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:03,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741511989] [2021-03-10 17:53:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:03,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:03,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741511989] [2021-03-10 17:53:03,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:03,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:03,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452919873] [2021-03-10 17:53:03,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:03,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:03,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:03,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:03,996 INFO L87 Difference]: Start difference. First operand 3908 states and 10450 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:05,055 INFO L93 Difference]: Finished difference Result 5503 states and 13860 transitions. [2021-03-10 17:53:05,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:05,055 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:05,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:05,059 INFO L225 Difference]: With dead ends: 5503 [2021-03-10 17:53:05,059 INFO L226 Difference]: Without dead ends: 5503 [2021-03-10 17:53:05,060 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 820.4ms TimeCoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:05,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2021-03-10 17:53:05,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 3938. [2021-03-10 17:53:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3936 states have (on average 2.6740345528455283) internal successors, (10525), 3937 states have internal predecessors, (10525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 10525 transitions. [2021-03-10 17:53:05,110 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 10525 transitions. Word has length 107 [2021-03-10 17:53:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:05,110 INFO L480 AbstractCegarLoop]: Abstraction has 3938 states and 10525 transitions. [2021-03-10 17:53:05,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 10525 transitions. [2021-03-10 17:53:05,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:05,113 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:05,114 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:05,114 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-10 17:53:05,114 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:05,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1025034944, now seen corresponding path program 32 times [2021-03-10 17:53:05,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:05,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127706243] [2021-03-10 17:53:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:05,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127706243] [2021-03-10 17:53:05,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:05,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:05,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193094317] [2021-03-10 17:53:05,470 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:05,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:05,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:05,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:05,471 INFO L87 Difference]: Start difference. First operand 3938 states and 10525 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:06,830 INFO L93 Difference]: Finished difference Result 6374 states and 16207 transitions. [2021-03-10 17:53:06,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:06,830 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:06,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:06,836 INFO L225 Difference]: With dead ends: 6374 [2021-03-10 17:53:06,836 INFO L226 Difference]: Without dead ends: 6374 [2021-03-10 17:53:06,836 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 1058.4ms TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6374 states. [2021-03-10 17:53:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6374 to 3938. [2021-03-10 17:53:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3938 states, 3936 states have (on average 2.6740345528455283) internal successors, (10525), 3937 states have internal predecessors, (10525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3938 states to 3938 states and 10525 transitions. [2021-03-10 17:53:06,889 INFO L78 Accepts]: Start accepts. Automaton has 3938 states and 10525 transitions. Word has length 107 [2021-03-10 17:53:06,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:06,889 INFO L480 AbstractCegarLoop]: Abstraction has 3938 states and 10525 transitions. [2021-03-10 17:53:06,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:06,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3938 states and 10525 transitions. [2021-03-10 17:53:06,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:06,894 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:06,894 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:06,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-10 17:53:06,894 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:06,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:06,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1603749152, now seen corresponding path program 33 times [2021-03-10 17:53:06,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:06,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170191241] [2021-03-10 17:53:06,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:07,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:07,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170191241] [2021-03-10 17:53:07,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:07,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:07,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438073021] [2021-03-10 17:53:07,285 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:07,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:07,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:07,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:07,286 INFO L87 Difference]: Start difference. First operand 3938 states and 10525 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:08,803 INFO L93 Difference]: Finished difference Result 5888 states and 15186 transitions. [2021-03-10 17:53:08,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:08,804 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:08,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:08,808 INFO L225 Difference]: With dead ends: 5888 [2021-03-10 17:53:08,808 INFO L226 Difference]: Without dead ends: 5888 [2021-03-10 17:53:08,809 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1159.6ms TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:08,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5888 states. [2021-03-10 17:53:08,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5888 to 3113. [2021-03-10 17:53:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3111 states have (on average 2.637094181935069) internal successors, (8204), 3112 states have internal predecessors, (8204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 8204 transitions. [2021-03-10 17:53:08,850 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 8204 transitions. Word has length 107 [2021-03-10 17:53:08,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:08,850 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 8204 transitions. [2021-03-10 17:53:08,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 8204 transitions. [2021-03-10 17:53:08,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:08,853 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:08,853 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:08,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-10 17:53:08,853 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:08,853 INFO L82 PathProgramCache]: Analyzing trace with hash 435225218, now seen corresponding path program 34 times [2021-03-10 17:53:08,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:08,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935407172] [2021-03-10 17:53:08,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:09,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:09,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935407172] [2021-03-10 17:53:09,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:09,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:09,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18410369] [2021-03-10 17:53:09,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:09,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:09,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:09,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:09,267 INFO L87 Difference]: Start difference. First operand 3113 states and 8204 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:10,529 INFO L93 Difference]: Finished difference Result 4044 states and 10171 transitions. [2021-03-10 17:53:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:10,530 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:10,533 INFO L225 Difference]: With dead ends: 4044 [2021-03-10 17:53:10,533 INFO L226 Difference]: Without dead ends: 4044 [2021-03-10 17:53:10,534 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1048.1ms TimeCoverageRelationStatistics Valid=290, Invalid=900, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:10,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4044 states. [2021-03-10 17:53:10,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4044 to 3113. [2021-03-10 17:53:10,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3113 states, 3111 states have (on average 2.637094181935069) internal successors, (8204), 3112 states have internal predecessors, (8204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3113 states to 3113 states and 8204 transitions. [2021-03-10 17:53:10,570 INFO L78 Accepts]: Start accepts. Automaton has 3113 states and 8204 transitions. Word has length 107 [2021-03-10 17:53:10,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:10,570 INFO L480 AbstractCegarLoop]: Abstraction has 3113 states and 8204 transitions. [2021-03-10 17:53:10,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3113 states and 8204 transitions. [2021-03-10 17:53:10,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:10,572 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:10,573 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:10,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-10 17:53:10,573 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:10,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:10,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1151087784, now seen corresponding path program 35 times [2021-03-10 17:53:10,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:10,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197620101] [2021-03-10 17:53:10,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:10,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:10,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197620101] [2021-03-10 17:53:10,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:10,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:10,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941116197] [2021-03-10 17:53:10,911 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:10,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:10,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:10,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:10,912 INFO L87 Difference]: Start difference. First operand 3113 states and 8204 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:11,969 INFO L93 Difference]: Finished difference Result 4028 states and 10147 transitions. [2021-03-10 17:53:11,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:11,969 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:11,972 INFO L225 Difference]: With dead ends: 4028 [2021-03-10 17:53:11,973 INFO L226 Difference]: Without dead ends: 4028 [2021-03-10 17:53:11,973 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 750.9ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:11,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4028 states. [2021-03-10 17:53:12,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4028 to 3083. [2021-03-10 17:53:12,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3081 states have (on average 2.638429081467056) internal successors, (8129), 3082 states have internal predecessors, (8129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 8129 transitions. [2021-03-10 17:53:12,006 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 8129 transitions. Word has length 107 [2021-03-10 17:53:12,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:12,006 INFO L480 AbstractCegarLoop]: Abstraction has 3083 states and 8129 transitions. [2021-03-10 17:53:12,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 8129 transitions. [2021-03-10 17:53:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:12,009 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:12,009 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:12,009 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-10 17:53:12,009 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:12,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:12,010 INFO L82 PathProgramCache]: Analyzing trace with hash 361219306, now seen corresponding path program 36 times [2021-03-10 17:53:12,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:12,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601042050] [2021-03-10 17:53:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:12,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:12,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:12,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601042050] [2021-03-10 17:53:12,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:12,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:12,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361857228] [2021-03-10 17:53:12,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:12,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:12,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:12,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:12,372 INFO L87 Difference]: Start difference. First operand 3083 states and 8129 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:13,347 INFO L93 Difference]: Finished difference Result 4855 states and 11916 transitions. [2021-03-10 17:53:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:13,347 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:13,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:13,352 INFO L225 Difference]: With dead ends: 4855 [2021-03-10 17:53:13,352 INFO L226 Difference]: Without dead ends: 4855 [2021-03-10 17:53:13,353 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 765.3ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:13,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4855 states. [2021-03-10 17:53:13,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4855 to 3085. [2021-03-10 17:53:13,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3085 states, 3083 states have (on average 2.6383392799221537) internal successors, (8134), 3084 states have internal predecessors, (8134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3085 states to 3085 states and 8134 transitions. [2021-03-10 17:53:13,402 INFO L78 Accepts]: Start accepts. Automaton has 3085 states and 8134 transitions. Word has length 107 [2021-03-10 17:53:13,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:13,402 INFO L480 AbstractCegarLoop]: Abstraction has 3085 states and 8134 transitions. [2021-03-10 17:53:13,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,403 INFO L276 IsEmpty]: Start isEmpty. Operand 3085 states and 8134 transitions. [2021-03-10 17:53:13,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:13,405 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:13,405 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:13,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-10 17:53:13,405 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:13,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:13,406 INFO L82 PathProgramCache]: Analyzing trace with hash 454911526, now seen corresponding path program 37 times [2021-03-10 17:53:13,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:13,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800113016] [2021-03-10 17:53:13,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:13,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800113016] [2021-03-10 17:53:13,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:13,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:13,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566453219] [2021-03-10 17:53:13,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:13,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:13,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:13,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:13,749 INFO L87 Difference]: Start difference. First operand 3085 states and 8134 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:14,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:14,786 INFO L93 Difference]: Finished difference Result 4360 states and 10867 transitions. [2021-03-10 17:53:14,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:14,786 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:14,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:14,790 INFO L225 Difference]: With dead ends: 4360 [2021-03-10 17:53:14,790 INFO L226 Difference]: Without dead ends: 4360 [2021-03-10 17:53:14,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 790.0ms TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2021-03-10 17:53:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 3077. [2021-03-10 17:53:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3077 states, 3075 states have (on average 2.63869918699187) internal successors, (8114), 3076 states have internal predecessors, (8114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3077 states to 3077 states and 8114 transitions. [2021-03-10 17:53:14,826 INFO L78 Accepts]: Start accepts. Automaton has 3077 states and 8114 transitions. Word has length 107 [2021-03-10 17:53:14,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:14,826 INFO L480 AbstractCegarLoop]: Abstraction has 3077 states and 8114 transitions. [2021-03-10 17:53:14,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3077 states and 8114 transitions. [2021-03-10 17:53:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:14,828 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:14,828 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:14,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-10 17:53:14,828 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:14,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash -569436188, now seen corresponding path program 38 times [2021-03-10 17:53:14,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:14,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234042438] [2021-03-10 17:53:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:14,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:15,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234042438] [2021-03-10 17:53:15,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:15,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:15,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762182540] [2021-03-10 17:53:15,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:15,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:15,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:15,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:15,191 INFO L87 Difference]: Start difference. First operand 3077 states and 8114 transitions. Second operand has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:16,149 INFO L93 Difference]: Finished difference Result 4252 states and 10597 transitions. [2021-03-10 17:53:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:16,149 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:16,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:16,153 INFO L225 Difference]: With dead ends: 4252 [2021-03-10 17:53:16,153 INFO L226 Difference]: Without dead ends: 4252 [2021-03-10 17:53:16,154 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 761.9ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:16,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4252 states. [2021-03-10 17:53:16,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4252 to 3067. [2021-03-10 17:53:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 3065 states have (on average 2.639151712887439) internal successors, (8089), 3066 states have internal predecessors, (8089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 8089 transitions. [2021-03-10 17:53:16,189 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 8089 transitions. Word has length 107 [2021-03-10 17:53:16,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:16,190 INFO L480 AbstractCegarLoop]: Abstraction has 3067 states and 8089 transitions. [2021-03-10 17:53:16,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.944444444444445) internal successors, (107), 18 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 8089 transitions. [2021-03-10 17:53:16,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:16,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:16,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:16,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-10 17:53:16,193 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:16,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:16,193 INFO L82 PathProgramCache]: Analyzing trace with hash -475743968, now seen corresponding path program 39 times [2021-03-10 17:53:16,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:16,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484388859] [2021-03-10 17:53:16,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:16,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484388859] [2021-03-10 17:53:16,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:16,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:16,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056541778] [2021-03-10 17:53:16,600 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:16,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:16,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:16,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:16,600 INFO L87 Difference]: Start difference. First operand 3067 states and 8089 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:17,750 INFO L93 Difference]: Finished difference Result 4582 states and 11312 transitions. [2021-03-10 17:53:17,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:17,750 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:17,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:17,754 INFO L225 Difference]: With dead ends: 4582 [2021-03-10 17:53:17,754 INFO L226 Difference]: Without dead ends: 4582 [2021-03-10 17:53:17,754 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 851.3ms TimeCoverageRelationStatistics Valid=267, Invalid=923, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4582 states. [2021-03-10 17:53:17,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4582 to 3065. [2021-03-10 17:53:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 3063 states have (on average 2.6392425726412014) internal successors, (8084), 3064 states have internal predecessors, (8084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 8084 transitions. [2021-03-10 17:53:17,789 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 8084 transitions. Word has length 107 [2021-03-10 17:53:17,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:17,790 INFO L480 AbstractCegarLoop]: Abstraction has 3065 states and 8084 transitions. [2021-03-10 17:53:17,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 8084 transitions. [2021-03-10 17:53:17,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-03-10 17:53:17,792 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:17,792 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:17,792 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-10 17:53:17,792 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:17,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:17,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1331057844, now seen corresponding path program 40 times [2021-03-10 17:53:17,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:17,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127564641] [2021-03-10 17:53:17,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:18,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:18,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127564641] [2021-03-10 17:53:18,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:18,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-03-10 17:53:18,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840146438] [2021-03-10 17:53:18,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-03-10 17:53:18,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:18,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-03-10 17:53:18,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-03-10 17:53:18,201 INFO L87 Difference]: Start difference. First operand 3065 states and 8084 transitions. Second operand has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:19,270 INFO L93 Difference]: Finished difference Result 3748 states and 9536 transitions. [2021-03-10 17:53:19,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:19,270 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2021-03-10 17:53:19,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:19,274 INFO L225 Difference]: With dead ends: 3748 [2021-03-10 17:53:19,274 INFO L226 Difference]: Without dead ends: 3748 [2021-03-10 17:53:19,274 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 846.4ms TimeCoverageRelationStatistics Valid=268, Invalid=922, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:19,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2021-03-10 17:53:19,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 2797. [2021-03-10 17:53:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2796 states have (on average 2.6834763948497855) internal successors, (7503), 2796 states have internal predecessors, (7503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 7503 transitions. [2021-03-10 17:53:19,305 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 7503 transitions. Word has length 107 [2021-03-10 17:53:19,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:19,305 INFO L480 AbstractCegarLoop]: Abstraction has 2797 states and 7503 transitions. [2021-03-10 17:53:19,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 5.631578947368421) internal successors, (107), 19 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 7503 transitions. [2021-03-10 17:53:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:19,308 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:19,308 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:19,308 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-10 17:53:19,308 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:19,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:19,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1742132568, now seen corresponding path program 1 times [2021-03-10 17:53:19,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:19,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850717212] [2021-03-10 17:53:19,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:20,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850717212] [2021-03-10 17:53:20,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:20,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:20,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414400053] [2021-03-10 17:53:20,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:20,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:20,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:20,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:20,243 INFO L87 Difference]: Start difference. First operand 2797 states and 7503 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:23,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:23,705 INFO L93 Difference]: Finished difference Result 4426 states and 11615 transitions. [2021-03-10 17:53:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:53:23,706 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:23,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:23,709 INFO L225 Difference]: With dead ends: 4426 [2021-03-10 17:53:23,709 INFO L226 Difference]: Without dead ends: 4220 [2021-03-10 17:53:23,710 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 3010.5ms TimeCoverageRelationStatistics Valid=605, Invalid=3055, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:53:23,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2021-03-10 17:53:23,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 2907. [2021-03-10 17:53:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 2.6899518238128013) internal successors, (7817), 2906 states have internal predecessors, (7817), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 7817 transitions. [2021-03-10 17:53:23,750 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 7817 transitions. Word has length 113 [2021-03-10 17:53:23,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:23,750 INFO L480 AbstractCegarLoop]: Abstraction has 2907 states and 7817 transitions. [2021-03-10 17:53:23,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:23,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 7817 transitions. [2021-03-10 17:53:23,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:23,757 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:23,757 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:23,757 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-10 17:53:23,757 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:23,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:23,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1832145966, now seen corresponding path program 2 times [2021-03-10 17:53:23,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:23,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7264350] [2021-03-10 17:53:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:24,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7264350] [2021-03-10 17:53:24,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:24,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:24,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731170850] [2021-03-10 17:53:24,756 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:24,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:24,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:24,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:24,757 INFO L87 Difference]: Start difference. First operand 2907 states and 7817 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:28,031 INFO L93 Difference]: Finished difference Result 4837 states and 12828 transitions. [2021-03-10 17:53:28,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:53:28,031 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:28,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:28,035 INFO L225 Difference]: With dead ends: 4837 [2021-03-10 17:53:28,035 INFO L226 Difference]: Without dead ends: 4446 [2021-03-10 17:53:28,036 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 3114.6ms TimeCoverageRelationStatistics Valid=633, Invalid=3027, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:53:28,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4446 states. [2021-03-10 17:53:28,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4446 to 3182. [2021-03-10 17:53:28,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 3181 states have (on average 2.6821754165356806) internal successors, (8532), 3181 states have internal predecessors, (8532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 8532 transitions. [2021-03-10 17:53:28,078 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 8532 transitions. Word has length 113 [2021-03-10 17:53:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:28,078 INFO L480 AbstractCegarLoop]: Abstraction has 3182 states and 8532 transitions. [2021-03-10 17:53:28,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 8532 transitions. [2021-03-10 17:53:28,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:28,081 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:28,081 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:28,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-10 17:53:28,081 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:28,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:28,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1254395966, now seen corresponding path program 3 times [2021-03-10 17:53:28,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:28,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993313740] [2021-03-10 17:53:28,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:29,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:29,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993313740] [2021-03-10 17:53:29,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:29,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:29,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225150068] [2021-03-10 17:53:29,015 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:29,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:29,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:29,016 INFO L87 Difference]: Start difference. First operand 3182 states and 8532 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:29,724 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2021-03-10 17:53:32,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:32,580 INFO L93 Difference]: Finished difference Result 4577 states and 12091 transitions. [2021-03-10 17:53:32,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-10 17:53:32,580 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:32,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:32,584 INFO L225 Difference]: With dead ends: 4577 [2021-03-10 17:53:32,584 INFO L226 Difference]: Without dead ends: 4391 [2021-03-10 17:53:32,585 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 729 ImplicationChecksByTransitivity, 3182.8ms TimeCoverageRelationStatistics Valid=659, Invalid=3247, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 17:53:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4391 states. [2021-03-10 17:53:32,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4391 to 3127. [2021-03-10 17:53:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 3126 states have (on average 2.6801023672424824) internal successors, (8378), 3126 states have internal predecessors, (8378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:32,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 8378 transitions. [2021-03-10 17:53:32,624 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 8378 transitions. Word has length 113 [2021-03-10 17:53:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:32,625 INFO L480 AbstractCegarLoop]: Abstraction has 3127 states and 8378 transitions. [2021-03-10 17:53:32,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 8378 transitions. [2021-03-10 17:53:32,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:32,627 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:32,627 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:32,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-10 17:53:32,627 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:32,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:32,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1609362668, now seen corresponding path program 4 times [2021-03-10 17:53:32,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:32,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702355795] [2021-03-10 17:53:32,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:33,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:33,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702355795] [2021-03-10 17:53:33,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:33,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:33,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977508763] [2021-03-10 17:53:33,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:33,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:33,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:33,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:33,657 INFO L87 Difference]: Start difference. First operand 3127 states and 8378 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:36,735 INFO L93 Difference]: Finished difference Result 4493 states and 11889 transitions. [2021-03-10 17:53:36,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:53:36,735 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:36,740 INFO L225 Difference]: With dead ends: 4493 [2021-03-10 17:53:36,740 INFO L226 Difference]: Without dead ends: 4027 [2021-03-10 17:53:36,740 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 2967.1ms TimeCoverageRelationStatistics Valid=556, Invalid=2750, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 17:53:36,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2021-03-10 17:53:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 2852. [2021-03-10 17:53:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 2.6857243072606103) internal successors, (7657), 2851 states have internal predecessors, (7657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:36,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 7657 transitions. [2021-03-10 17:53:36,776 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 7657 transitions. Word has length 113 [2021-03-10 17:53:36,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:36,776 INFO L480 AbstractCegarLoop]: Abstraction has 2852 states and 7657 transitions. [2021-03-10 17:53:36,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:36,776 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 7657 transitions. [2021-03-10 17:53:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:36,778 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:36,778 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:36,779 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-10 17:53:36,779 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:36,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:36,780 INFO L82 PathProgramCache]: Analyzing trace with hash 2114273016, now seen corresponding path program 5 times [2021-03-10 17:53:36,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:36,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440973797] [2021-03-10 17:53:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:37,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:37,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440973797] [2021-03-10 17:53:37,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:37,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:37,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497523608] [2021-03-10 17:53:37,808 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:37,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:37,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:37,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:37,809 INFO L87 Difference]: Start difference. First operand 2852 states and 7657 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:41,071 INFO L93 Difference]: Finished difference Result 3793 states and 9959 transitions. [2021-03-10 17:53:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:53:41,072 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:41,075 INFO L225 Difference]: With dead ends: 3793 [2021-03-10 17:53:41,076 INFO L226 Difference]: Without dead ends: 3587 [2021-03-10 17:53:41,076 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3111.9ms TimeCoverageRelationStatistics Valid=647, Invalid=3013, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:53:41,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3587 states. [2021-03-10 17:53:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3587 to 2854. [2021-03-10 17:53:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2854 states, 2853 states have (on average 2.684893094987732) internal successors, (7660), 2853 states have internal predecessors, (7660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:41,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2854 states to 2854 states and 7660 transitions. [2021-03-10 17:53:41,110 INFO L78 Accepts]: Start accepts. Automaton has 2854 states and 7660 transitions. Word has length 113 [2021-03-10 17:53:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:41,110 INFO L480 AbstractCegarLoop]: Abstraction has 2854 states and 7660 transitions. [2021-03-10 17:53:41,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2854 states and 7660 transitions. [2021-03-10 17:53:41,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:41,128 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:41,128 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:41,128 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-10 17:53:41,128 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:41,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1109767862, now seen corresponding path program 6 times [2021-03-10 17:53:41,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:41,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516109392] [2021-03-10 17:53:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:41,476 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516109392] [2021-03-10 17:53:41,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:41,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:53:41,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144912021] [2021-03-10 17:53:41,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:53:41,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:41,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:53:41,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:53:41,477 INFO L87 Difference]: Start difference. First operand 2854 states and 7660 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:42,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:42,108 INFO L93 Difference]: Finished difference Result 3287 states and 8729 transitions. [2021-03-10 17:53:42,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:53:42,109 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:42,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:42,112 INFO L225 Difference]: With dead ends: 3287 [2021-03-10 17:53:42,112 INFO L226 Difference]: Without dead ends: 3287 [2021-03-10 17:53:42,112 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 576.3ms TimeCoverageRelationStatistics Valid=202, Invalid=668, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:53:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2021-03-10 17:53:42,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3023. [2021-03-10 17:53:42,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3023 states, 3022 states have (on average 2.6681005956320316) internal successors, (8063), 3022 states have internal predecessors, (8063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:42,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 8063 transitions. [2021-03-10 17:53:42,149 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 8063 transitions. Word has length 113 [2021-03-10 17:53:42,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:42,149 INFO L480 AbstractCegarLoop]: Abstraction has 3023 states and 8063 transitions. [2021-03-10 17:53:42,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:42,150 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 8063 transitions. [2021-03-10 17:53:42,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:42,152 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:42,152 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:42,152 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-10 17:53:42,152 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:42,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:42,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1063590446, now seen corresponding path program 7 times [2021-03-10 17:53:42,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:42,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856764571] [2021-03-10 17:53:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:43,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:43,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856764571] [2021-03-10 17:53:43,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:43,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:43,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866021626] [2021-03-10 17:53:43,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:43,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:43,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:43,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:43,049 INFO L87 Difference]: Start difference. First operand 3023 states and 8063 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:44,642 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:53:46,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:46,398 INFO L93 Difference]: Finished difference Result 3915 states and 10209 transitions. [2021-03-10 17:53:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-10 17:53:46,398 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:46,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:46,401 INFO L225 Difference]: With dead ends: 3915 [2021-03-10 17:53:46,401 INFO L226 Difference]: Without dead ends: 3716 [2021-03-10 17:53:46,401 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 3060.7ms TimeCoverageRelationStatistics Valid=685, Invalid=3097, Unknown=0, NotChecked=0, Total=3782 [2021-03-10 17:53:46,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2021-03-10 17:53:46,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3029. [2021-03-10 17:53:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 3028 states have (on average 2.6654557463672393) internal successors, (8071), 3028 states have internal predecessors, (8071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 8071 transitions. [2021-03-10 17:53:46,435 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 8071 transitions. Word has length 113 [2021-03-10 17:53:46,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:46,435 INFO L480 AbstractCegarLoop]: Abstraction has 3029 states and 8071 transitions. [2021-03-10 17:53:46,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:46,435 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 8071 transitions. [2021-03-10 17:53:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:46,438 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:46,438 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:46,438 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-10 17:53:46,438 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:46,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:46,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1756151334, now seen corresponding path program 8 times [2021-03-10 17:53:46,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:46,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175880382] [2021-03-10 17:53:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:47,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175880382] [2021-03-10 17:53:47,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:47,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:47,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522281199] [2021-03-10 17:53:47,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:47,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:47,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:47,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=682, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:47,324 INFO L87 Difference]: Start difference. First operand 3029 states and 8071 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:48,598 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:53:50,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:50,664 INFO L93 Difference]: Finished difference Result 4985 states and 13106 transitions. [2021-03-10 17:53:50,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:53:50,665 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:50,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:50,669 INFO L225 Difference]: With dead ends: 4985 [2021-03-10 17:53:50,669 INFO L226 Difference]: Without dead ends: 4594 [2021-03-10 17:53:50,669 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 636 ImplicationChecksByTransitivity, 3146.7ms TimeCoverageRelationStatistics Valid=669, Invalid=2991, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:53:50,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4594 states. [2021-03-10 17:53:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4594 to 3381. [2021-03-10 17:53:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 2.6579881656804734) internal successors, (8984), 3380 states have internal predecessors, (8984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 8984 transitions. [2021-03-10 17:53:50,711 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 8984 transitions. Word has length 113 [2021-03-10 17:53:50,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:50,711 INFO L480 AbstractCegarLoop]: Abstraction has 3381 states and 8984 transitions. [2021-03-10 17:53:50,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:50,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 8984 transitions. [2021-03-10 17:53:50,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:50,714 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:50,714 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:50,714 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-10 17:53:50,714 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:50,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:50,714 INFO L82 PathProgramCache]: Analyzing trace with hash 145866876, now seen corresponding path program 9 times [2021-03-10 17:53:50,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:50,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228906174] [2021-03-10 17:53:50,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:51,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228906174] [2021-03-10 17:53:51,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:51,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:51,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976310334] [2021-03-10 17:53:51,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:51,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:51,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:51,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:51,651 INFO L87 Difference]: Start difference. First operand 3381 states and 8984 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:52,547 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:53:52,918 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:53:55,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:55,145 INFO L93 Difference]: Finished difference Result 4725 states and 12369 transitions. [2021-03-10 17:53:55,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-10 17:53:55,145 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:55,149 INFO L225 Difference]: With dead ends: 4725 [2021-03-10 17:53:55,149 INFO L226 Difference]: Without dead ends: 4539 [2021-03-10 17:53:55,150 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 3241.7ms TimeCoverageRelationStatistics Valid=674, Invalid=3232, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 17:53:55,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2021-03-10 17:53:55,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 3326. [2021-03-10 17:53:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3326 states, 3325 states have (on average 2.655639097744361) internal successors, (8830), 3325 states have internal predecessors, (8830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:55,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3326 states to 3326 states and 8830 transitions. [2021-03-10 17:53:55,190 INFO L78 Accepts]: Start accepts. Automaton has 3326 states and 8830 transitions. Word has length 113 [2021-03-10 17:53:55,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:55,190 INFO L480 AbstractCegarLoop]: Abstraction has 3326 states and 8830 transitions. [2021-03-10 17:53:55,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:55,190 INFO L276 IsEmpty]: Start isEmpty. Operand 3326 states and 8830 transitions. [2021-03-10 17:53:55,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:55,193 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:55,193 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:55,193 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-10 17:53:55,193 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:55,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:55,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1588529964, now seen corresponding path program 10 times [2021-03-10 17:53:55,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:55,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107916885] [2021-03-10 17:53:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:56,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:56,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107916885] [2021-03-10 17:53:56,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:56,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:53:56,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944630317] [2021-03-10 17:53:56,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:53:56,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:56,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:53:56,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:53:56,023 INFO L87 Difference]: Start difference. First operand 3326 states and 8830 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:57,330 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:53:59,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:59,530 INFO L93 Difference]: Finished difference Result 4767 states and 12394 transitions. [2021-03-10 17:53:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:53:59,531 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:53:59,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:59,535 INFO L225 Difference]: With dead ends: 4767 [2021-03-10 17:53:59,535 INFO L226 Difference]: Without dead ends: 4330 [2021-03-10 17:53:59,535 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 2997.5ms TimeCoverageRelationStatistics Valid=610, Invalid=3050, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:53:59,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2021-03-10 17:53:59,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3084. [2021-03-10 17:53:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3084 states, 3083 states have (on average 2.6500162179695104) internal successors, (8170), 3083 states have internal predecessors, (8170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:59,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3084 states to 3084 states and 8170 transitions. [2021-03-10 17:53:59,574 INFO L78 Accepts]: Start accepts. Automaton has 3084 states and 8170 transitions. Word has length 113 [2021-03-10 17:53:59,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:59,574 INFO L480 AbstractCegarLoop]: Abstraction has 3084 states and 8170 transitions. [2021-03-10 17:53:59,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:59,574 INFO L276 IsEmpty]: Start isEmpty. Operand 3084 states and 8170 transitions. [2021-03-10 17:53:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:53:59,577 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:59,577 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:59,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-10 17:53:59,577 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:59,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:59,577 INFO L82 PathProgramCache]: Analyzing trace with hash 781256300, now seen corresponding path program 11 times [2021-03-10 17:53:59,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:59,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400946964] [2021-03-10 17:53:59,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:00,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:00,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400946964] [2021-03-10 17:54:00,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:00,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:00,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234899918] [2021-03-10 17:54:00,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:00,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:00,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:00,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:00,463 INFO L87 Difference]: Start difference. First operand 3084 states and 8170 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:01,714 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:54:02,178 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-03-10 17:54:03,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:03,873 INFO L93 Difference]: Finished difference Result 4110 states and 10695 transitions. [2021-03-10 17:54:03,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:54:03,873 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:03,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:03,877 INFO L225 Difference]: With dead ends: 4110 [2021-03-10 17:54:03,877 INFO L226 Difference]: Without dead ends: 3891 [2021-03-10 17:54:03,877 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 3058.9ms TimeCoverageRelationStatistics Valid=662, Invalid=2998, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:54:03,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3891 states. [2021-03-10 17:54:03,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3891 to 3062. [2021-03-10 17:54:03,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3062 states, 3061 states have (on average 2.655014701078079) internal successors, (8127), 3061 states have internal predecessors, (8127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3062 states to 3062 states and 8127 transitions. [2021-03-10 17:54:03,911 INFO L78 Accepts]: Start accepts. Automaton has 3062 states and 8127 transitions. Word has length 113 [2021-03-10 17:54:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:03,911 INFO L480 AbstractCegarLoop]: Abstraction has 3062 states and 8127 transitions. [2021-03-10 17:54:03,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3062 states and 8127 transitions. [2021-03-10 17:54:03,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:03,914 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:03,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:03,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-10 17:54:03,914 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:03,914 INFO L82 PathProgramCache]: Analyzing trace with hash 658014488, now seen corresponding path program 12 times [2021-03-10 17:54:03,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:03,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015892319] [2021-03-10 17:54:03,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:04,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015892319] [2021-03-10 17:54:04,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:04,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:04,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286020091] [2021-03-10 17:54:04,860 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:04,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:04,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:04,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:04,861 INFO L87 Difference]: Start difference. First operand 3062 states and 8127 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:06,543 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 17:54:08,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:08,117 INFO L93 Difference]: Finished difference Result 3778 states and 9764 transitions. [2021-03-10 17:54:08,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:54:08,118 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:08,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:08,120 INFO L225 Difference]: With dead ends: 3778 [2021-03-10 17:54:08,121 INFO L226 Difference]: Without dead ends: 3564 [2021-03-10 17:54:08,121 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 689 ImplicationChecksByTransitivity, 3083.1ms TimeCoverageRelationStatistics Valid=618, Invalid=2922, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:54:08,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-03-10 17:54:08,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3080. [2021-03-10 17:54:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 2.6528093536862616) internal successors, (8168), 3079 states have internal predecessors, (8168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 8168 transitions. [2021-03-10 17:54:08,154 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 8168 transitions. Word has length 113 [2021-03-10 17:54:08,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:08,154 INFO L480 AbstractCegarLoop]: Abstraction has 3080 states and 8168 transitions. [2021-03-10 17:54:08,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:08,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 8168 transitions. [2021-03-10 17:54:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:08,156 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:08,156 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:08,157 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-10 17:54:08,157 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:08,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:08,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1775118322, now seen corresponding path program 13 times [2021-03-10 17:54:08,157 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:08,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241486327] [2021-03-10 17:54:08,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:09,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241486327] [2021-03-10 17:54:09,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:09,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:09,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079882424] [2021-03-10 17:54:09,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:09,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:09,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:09,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:09,050 INFO L87 Difference]: Start difference. First operand 3080 states and 8168 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:10,629 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 17:54:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:12,434 INFO L93 Difference]: Finished difference Result 3749 states and 9701 transitions. [2021-03-10 17:54:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:54:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:12,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:12,437 INFO L225 Difference]: With dead ends: 3749 [2021-03-10 17:54:12,437 INFO L226 Difference]: Without dead ends: 3550 [2021-03-10 17:54:12,437 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3072.3ms TimeCoverageRelationStatistics Valid=655, Invalid=3005, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:54:12,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2021-03-10 17:54:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3076. [2021-03-10 17:54:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3076 states, 3075 states have (on average 2.653658536585366) internal successors, (8160), 3075 states have internal predecessors, (8160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:12,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3076 states to 3076 states and 8160 transitions. [2021-03-10 17:54:12,471 INFO L78 Accepts]: Start accepts. Automaton has 3076 states and 8160 transitions. Word has length 113 [2021-03-10 17:54:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:12,471 INFO L480 AbstractCegarLoop]: Abstraction has 3076 states and 8160 transitions. [2021-03-10 17:54:12,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3076 states and 8160 transitions. [2021-03-10 17:54:12,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:12,474 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:12,474 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:12,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-10 17:54:12,474 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:12,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:12,475 INFO L82 PathProgramCache]: Analyzing trace with hash -102656908, now seen corresponding path program 14 times [2021-03-10 17:54:12,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:12,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992348067] [2021-03-10 17:54:12,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:13,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992348067] [2021-03-10 17:54:13,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:13,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:13,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896977389] [2021-03-10 17:54:13,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:13,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:13,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:13,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:13,413 INFO L87 Difference]: Start difference. First operand 3076 states and 8160 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:14,888 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-03-10 17:54:15,103 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 17:54:16,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:16,752 INFO L93 Difference]: Finished difference Result 3749 states and 9700 transitions. [2021-03-10 17:54:16,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:54:16,753 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:16,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:16,756 INFO L225 Difference]: With dead ends: 3749 [2021-03-10 17:54:16,756 INFO L226 Difference]: Without dead ends: 3540 [2021-03-10 17:54:16,756 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 2903.3ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:54:16,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3540 states. [2021-03-10 17:54:16,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3540 to 3102. [2021-03-10 17:54:16,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 3101 states have (on average 2.6520477265398257) internal successors, (8224), 3101 states have internal predecessors, (8224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 8224 transitions. [2021-03-10 17:54:16,790 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 8224 transitions. Word has length 113 [2021-03-10 17:54:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:16,790 INFO L480 AbstractCegarLoop]: Abstraction has 3102 states and 8224 transitions. [2021-03-10 17:54:16,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 8224 transitions. [2021-03-10 17:54:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:16,793 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:16,793 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:16,793 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-10 17:54:16,793 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:16,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:16,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1655567084, now seen corresponding path program 15 times [2021-03-10 17:54:16,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:16,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109917941] [2021-03-10 17:54:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:17,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109917941] [2021-03-10 17:54:17,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:17,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:17,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668537359] [2021-03-10 17:54:17,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:17,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:17,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:17,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:17,625 INFO L87 Difference]: Start difference. First operand 3102 states and 8224 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:18,708 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:54:18,986 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:54:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:21,009 INFO L93 Difference]: Finished difference Result 4877 states and 12786 transitions. [2021-03-10 17:54:21,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:54:21,010 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:21,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:21,014 INFO L225 Difference]: With dead ends: 4877 [2021-03-10 17:54:21,014 INFO L226 Difference]: Without dead ends: 4486 [2021-03-10 17:54:21,014 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 641 ImplicationChecksByTransitivity, 2878.5ms TimeCoverageRelationStatistics Valid=622, Invalid=2918, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:54:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4486 states. [2021-03-10 17:54:21,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4486 to 3630. [2021-03-10 17:54:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3630 states, 3629 states have (on average 2.6632681179388262) internal successors, (9665), 3629 states have internal predecessors, (9665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3630 states to 3630 states and 9665 transitions. [2021-03-10 17:54:21,057 INFO L78 Accepts]: Start accepts. Automaton has 3630 states and 9665 transitions. Word has length 113 [2021-03-10 17:54:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:21,057 INFO L480 AbstractCegarLoop]: Abstraction has 3630 states and 9665 transitions. [2021-03-10 17:54:21,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:21,058 INFO L276 IsEmpty]: Start isEmpty. Operand 3630 states and 9665 transitions. [2021-03-10 17:54:21,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:21,060 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:21,060 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:21,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-10 17:54:21,061 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:21,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:21,061 INFO L82 PathProgramCache]: Analyzing trace with hash 45282626, now seen corresponding path program 16 times [2021-03-10 17:54:21,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:21,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615018560] [2021-03-10 17:54:21,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:21,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:21,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615018560] [2021-03-10 17:54:21,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:21,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:21,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563042794] [2021-03-10 17:54:21,899 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:21,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:21,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:21,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:21,899 INFO L87 Difference]: Start difference. First operand 3630 states and 9665 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:22,857 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:54:23,025 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:54:23,310 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:54:25,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:25,509 INFO L93 Difference]: Finished difference Result 4617 states and 12049 transitions. [2021-03-10 17:54:25,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-10 17:54:25,510 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:25,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:25,514 INFO L225 Difference]: With dead ends: 4617 [2021-03-10 17:54:25,514 INFO L226 Difference]: Without dead ends: 4431 [2021-03-10 17:54:25,514 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 3043.4ms TimeCoverageRelationStatistics Valid=643, Invalid=3139, Unknown=0, NotChecked=0, Total=3782 [2021-03-10 17:54:25,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2021-03-10 17:54:25,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 3575. [2021-03-10 17:54:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3575 states, 3574 states have (on average 2.661163961947398) internal successors, (9511), 3574 states have internal predecessors, (9511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:25,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3575 states to 3575 states and 9511 transitions. [2021-03-10 17:54:25,556 INFO L78 Accepts]: Start accepts. Automaton has 3575 states and 9511 transitions. Word has length 113 [2021-03-10 17:54:25,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:25,557 INFO L480 AbstractCegarLoop]: Abstraction has 3575 states and 9511 transitions. [2021-03-10 17:54:25,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:25,557 INFO L276 IsEmpty]: Start isEmpty. Operand 3575 states and 9511 transitions. [2021-03-10 17:54:25,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:25,560 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:25,560 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:25,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-10 17:54:25,560 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:25,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:25,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1487945714, now seen corresponding path program 17 times [2021-03-10 17:54:25,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:25,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243532017] [2021-03-10 17:54:25,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:26,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:26,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243532017] [2021-03-10 17:54:26,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:26,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:26,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425228974] [2021-03-10 17:54:26,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:26,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:26,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:26,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:26,438 INFO L87 Difference]: Start difference. First operand 3575 states and 9511 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:27,557 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:54:27,849 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:54:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:30,019 INFO L93 Difference]: Finished difference Result 4659 states and 12074 transitions. [2021-03-10 17:54:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:54:30,023 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:30,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:30,027 INFO L225 Difference]: With dead ends: 4659 [2021-03-10 17:54:30,027 INFO L226 Difference]: Without dead ends: 4222 [2021-03-10 17:54:30,028 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 2954.6ms TimeCoverageRelationStatistics Valid=583, Invalid=2957, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:54:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2021-03-10 17:54:30,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 3333. [2021-03-10 17:54:30,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3333 states, 3332 states have (on average 2.6563625450180073) internal successors, (8851), 3332 states have internal predecessors, (8851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:30,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 8851 transitions. [2021-03-10 17:54:30,069 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 8851 transitions. Word has length 113 [2021-03-10 17:54:30,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:30,069 INFO L480 AbstractCegarLoop]: Abstraction has 3333 states and 8851 transitions. [2021-03-10 17:54:30,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:30,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 8851 transitions. [2021-03-10 17:54:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:30,072 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:30,072 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:30,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-10 17:54:30,072 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:30,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:30,072 INFO L82 PathProgramCache]: Analyzing trace with hash 680672050, now seen corresponding path program 18 times [2021-03-10 17:54:30,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:30,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070462808] [2021-03-10 17:54:30,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:31,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070462808] [2021-03-10 17:54:31,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:31,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:31,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934317049] [2021-03-10 17:54:31,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:31,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:31,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:31,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:31,005 INFO L87 Difference]: Start difference. First operand 3333 states and 8851 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:32,127 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:54:32,429 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:54:32,876 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:54:34,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:34,565 INFO L93 Difference]: Finished difference Result 4014 states and 10403 transitions. [2021-03-10 17:54:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:54:34,566 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:34,568 INFO L225 Difference]: With dead ends: 4014 [2021-03-10 17:54:34,568 INFO L226 Difference]: Without dead ends: 3806 [2021-03-10 17:54:34,569 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 3006.1ms TimeCoverageRelationStatistics Valid=632, Invalid=2908, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:54:34,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2021-03-10 17:54:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3278. [2021-03-10 17:54:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3277 states have (on average 2.6673787000305156) internal successors, (8741), 3277 states have internal predecessors, (8741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 8741 transitions. [2021-03-10 17:54:34,604 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 8741 transitions. Word has length 113 [2021-03-10 17:54:34,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:34,604 INFO L480 AbstractCegarLoop]: Abstraction has 3278 states and 8741 transitions. [2021-03-10 17:54:34,604 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 8741 transitions. [2021-03-10 17:54:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:34,608 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:34,608 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:34,608 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-10 17:54:34,609 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:34,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:34,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1253017370, now seen corresponding path program 19 times [2021-03-10 17:54:34,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:34,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152441607] [2021-03-10 17:54:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:34,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:35,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152441607] [2021-03-10 17:54:35,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:35,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:54:35,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175892386] [2021-03-10 17:54:35,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:54:35,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:35,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:54:35,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:54:35,470 INFO L87 Difference]: Start difference. First operand 3278 states and 8741 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:36,497 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:54:36,864 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-03-10 17:54:37,040 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:54:38,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:38,626 INFO L93 Difference]: Finished difference Result 3821 states and 9909 transitions. [2021-03-10 17:54:38,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:54:38,626 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:38,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:38,629 INFO L225 Difference]: With dead ends: 3821 [2021-03-10 17:54:38,629 INFO L226 Difference]: Without dead ends: 3552 [2021-03-10 17:54:38,629 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 2885.9ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:54:38,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2021-03-10 17:54:38,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 3212. [2021-03-10 17:54:38,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 2.668327623793211) internal successors, (8568), 3211 states have internal predecessors, (8568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:38,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 8568 transitions. [2021-03-10 17:54:38,670 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 8568 transitions. Word has length 113 [2021-03-10 17:54:38,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:38,670 INFO L480 AbstractCegarLoop]: Abstraction has 3212 states and 8568 transitions. [2021-03-10 17:54:38,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:38,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 8568 transitions. [2021-03-10 17:54:38,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:38,673 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:38,673 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:38,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-10 17:54:38,673 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:38,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:38,674 INFO L82 PathProgramCache]: Analyzing trace with hash 742543280, now seen corresponding path program 20 times [2021-03-10 17:54:38,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:38,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894394763] [2021-03-10 17:54:38,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:39,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894394763] [2021-03-10 17:54:39,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:39,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:39,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034641399] [2021-03-10 17:54:39,466 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:39,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:39,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:39,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:39,466 INFO L87 Difference]: Start difference. First operand 3212 states and 8568 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:41,514 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-03-10 17:54:41,848 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-03-10 17:54:42,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:42,528 INFO L93 Difference]: Finished difference Result 4390 states and 11455 transitions. [2021-03-10 17:54:42,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:54:42,528 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:42,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:42,531 INFO L225 Difference]: With dead ends: 4390 [2021-03-10 17:54:42,531 INFO L226 Difference]: Without dead ends: 4230 [2021-03-10 17:54:42,532 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 2617.3ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:54:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4230 states. [2021-03-10 17:54:42,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4230 to 3267. [2021-03-10 17:54:42,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 3266 states have (on average 2.6690140845070425) internal successors, (8717), 3266 states have internal predecessors, (8717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:42,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 8717 transitions. [2021-03-10 17:54:42,568 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 8717 transitions. Word has length 113 [2021-03-10 17:54:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:42,568 INFO L480 AbstractCegarLoop]: Abstraction has 3267 states and 8717 transitions. [2021-03-10 17:54:42,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:42,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 8717 transitions. [2021-03-10 17:54:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:42,571 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:42,571 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:42,572 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-10 17:54:42,572 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:42,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:42,572 INFO L82 PathProgramCache]: Analyzing trace with hash 832556678, now seen corresponding path program 21 times [2021-03-10 17:54:42,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:42,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985850537] [2021-03-10 17:54:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:43,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:43,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985850537] [2021-03-10 17:54:43,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:43,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:43,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839842735] [2021-03-10 17:54:43,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:43,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:43,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:43,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:43,225 INFO L87 Difference]: Start difference. First operand 3267 states and 8717 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:46,079 INFO L93 Difference]: Finished difference Result 4489 states and 11710 transitions. [2021-03-10 17:54:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:54:46,079 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:46,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:46,082 INFO L225 Difference]: With dead ends: 4489 [2021-03-10 17:54:46,083 INFO L226 Difference]: Without dead ends: 4238 [2021-03-10 17:54:46,083 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 2513.3ms TimeCoverageRelationStatistics Valid=508, Invalid=2462, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:54:46,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2021-03-10 17:54:46,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3454. [2021-03-10 17:54:46,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 2.6550825369244135) internal successors, (9168), 3453 states have internal predecessors, (9168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 9168 transitions. [2021-03-10 17:54:46,121 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 9168 transitions. Word has length 113 [2021-03-10 17:54:46,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:46,121 INFO L480 AbstractCegarLoop]: Abstraction has 3454 states and 9168 transitions. [2021-03-10 17:54:46,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:46,121 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 9168 transitions. [2021-03-10 17:54:46,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:46,124 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:46,124 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:46,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-10 17:54:46,125 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:46,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:46,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2040982042, now seen corresponding path program 22 times [2021-03-10 17:54:46,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:46,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547078997] [2021-03-10 17:54:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:46,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547078997] [2021-03-10 17:54:46,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:46,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:46,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098798700] [2021-03-10 17:54:46,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:46,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:46,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:46,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:46,797 INFO L87 Difference]: Start difference. First operand 3454 states and 9168 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:48,762 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2021-03-10 17:54:49,000 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-03-10 17:54:49,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:49,825 INFO L93 Difference]: Finished difference Result 4335 states and 11293 transitions. [2021-03-10 17:54:49,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:54:49,825 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:49,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:49,828 INFO L225 Difference]: With dead ends: 4335 [2021-03-10 17:54:49,828 INFO L226 Difference]: Without dead ends: 4205 [2021-03-10 17:54:49,828 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 2644.4ms TimeCoverageRelationStatistics Valid=514, Invalid=2566, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 17:54:49,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states. [2021-03-10 17:54:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4205 to 3421. [2021-03-10 17:54:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3421 states, 3420 states have (on average 2.654970760233918) internal successors, (9080), 3420 states have internal predecessors, (9080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3421 states to 3421 states and 9080 transitions. [2021-03-10 17:54:49,865 INFO L78 Accepts]: Start accepts. Automaton has 3421 states and 9080 transitions. Word has length 113 [2021-03-10 17:54:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:49,866 INFO L480 AbstractCegarLoop]: Abstraction has 3421 states and 9080 transitions. [2021-03-10 17:54:49,866 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 3421 states and 9080 transitions. [2021-03-10 17:54:49,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:49,869 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:49,869 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:49,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-10 17:54:49,869 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:49,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:49,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1686015340, now seen corresponding path program 23 times [2021-03-10 17:54:49,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:49,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204211346] [2021-03-10 17:54:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:50,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:50,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204211346] [2021-03-10 17:54:50,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:50,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:50,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214873151] [2021-03-10 17:54:50,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:50,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:50,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:50,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:50,547 INFO L87 Difference]: Start difference. First operand 3421 states and 9080 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:52,589 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2021-03-10 17:54:52,724 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2021-03-10 17:54:52,928 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2021-03-10 17:54:53,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:53,591 INFO L93 Difference]: Finished difference Result 4283 states and 11175 transitions. [2021-03-10 17:54:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:54:53,591 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:53,594 INFO L225 Difference]: With dead ends: 4283 [2021-03-10 17:54:53,594 INFO L226 Difference]: Without dead ends: 3929 [2021-03-10 17:54:53,595 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 478 ImplicationChecksByTransitivity, 2572.0ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:54:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3929 states. [2021-03-10 17:54:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3929 to 3212. [2021-03-10 17:54:53,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3212 states, 3211 states have (on average 2.6511990034257242) internal successors, (8513), 3211 states have internal predecessors, (8513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:53,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3212 states to 3212 states and 8513 transitions. [2021-03-10 17:54:53,631 INFO L78 Accepts]: Start accepts. Automaton has 3212 states and 8513 transitions. Word has length 113 [2021-03-10 17:54:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:53,631 INFO L480 AbstractCegarLoop]: Abstraction has 3212 states and 8513 transitions. [2021-03-10 17:54:53,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3212 states and 8513 transitions. [2021-03-10 17:54:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:53,634 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:53,634 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:53,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-10 17:54:53,634 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:53,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:53,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1838781680, now seen corresponding path program 24 times [2021-03-10 17:54:53,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:53,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442133954] [2021-03-10 17:54:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:54,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:54,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442133954] [2021-03-10 17:54:54,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:54,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:54,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143947518] [2021-03-10 17:54:54,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:54,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:54,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:54,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:54,359 INFO L87 Difference]: Start difference. First operand 3212 states and 8513 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:56,312 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-10 17:54:56,449 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-10 17:54:56,674 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-03-10 17:54:57,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:54:57,593 INFO L93 Difference]: Finished difference Result 4300 states and 11056 transitions. [2021-03-10 17:54:57,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:54:57,594 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:54:57,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:54:57,597 INFO L225 Difference]: With dead ends: 4300 [2021-03-10 17:54:57,598 INFO L226 Difference]: Without dead ends: 3930 [2021-03-10 17:54:57,598 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 2825.0ms TimeCoverageRelationStatistics Valid=539, Invalid=2653, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:54:57,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2021-03-10 17:54:57,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3047. [2021-03-10 17:54:57,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3047 states, 3046 states have (on average 2.6503611293499674) internal successors, (8073), 3046 states have internal predecessors, (8073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:57,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 8073 transitions. [2021-03-10 17:54:57,641 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 8073 transitions. Word has length 113 [2021-03-10 17:54:57,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:54:57,641 INFO L480 AbstractCegarLoop]: Abstraction has 3047 states and 8073 transitions. [2021-03-10 17:54:57,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:54:57,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 8073 transitions. [2021-03-10 17:54:57,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:54:57,643 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:54:57,644 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:54:57,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-10 17:54:57,644 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:54:57,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:54:57,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1193900742, now seen corresponding path program 25 times [2021-03-10 17:54:57,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:54:57,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494883842] [2021-03-10 17:54:57,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:54:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:54:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:54:58,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494883842] [2021-03-10 17:54:58,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:54:58,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:54:58,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680741275] [2021-03-10 17:54:58,446 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:54:58,446 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:54:58,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:54:58,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:54:58,446 INFO L87 Difference]: Start difference. First operand 3047 states and 8073 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:00,538 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-10 17:55:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:01,526 INFO L93 Difference]: Finished difference Result 3727 states and 9701 transitions. [2021-03-10 17:55:01,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:55:01,526 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:01,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:01,529 INFO L225 Difference]: With dead ends: 3727 [2021-03-10 17:55:01,529 INFO L226 Difference]: Without dead ends: 3567 [2021-03-10 17:55:01,529 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2674.5ms TimeCoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:55:01,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3567 states. [2021-03-10 17:55:01,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3567 to 3080. [2021-03-10 17:55:01,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3080 states, 3079 states have (on average 2.648911984410523) internal successors, (8156), 3079 states have internal predecessors, (8156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3080 states to 3080 states and 8156 transitions. [2021-03-10 17:55:01,563 INFO L78 Accepts]: Start accepts. Automaton has 3080 states and 8156 transitions. Word has length 113 [2021-03-10 17:55:01,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:01,563 INFO L480 AbstractCegarLoop]: Abstraction has 3080 states and 8156 transitions. [2021-03-10 17:55:01,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3080 states and 8156 transitions. [2021-03-10 17:55:01,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:01,566 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:01,566 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:01,566 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-10 17:55:01,566 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:01,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1103887344, now seen corresponding path program 26 times [2021-03-10 17:55:01,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:01,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170483043] [2021-03-10 17:55:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:02,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:02,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170483043] [2021-03-10 17:55:02,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:02,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:02,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105342538] [2021-03-10 17:55:02,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:02,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:02,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:02,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:02,391 INFO L87 Difference]: Start difference. First operand 3080 states and 8156 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:05,213 INFO L93 Difference]: Finished difference Result 4052 states and 10526 transitions. [2021-03-10 17:55:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:55:05,213 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:05,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:05,217 INFO L225 Difference]: With dead ends: 4052 [2021-03-10 17:55:05,217 INFO L226 Difference]: Without dead ends: 3801 [2021-03-10 17:55:05,218 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 511 ImplicationChecksByTransitivity, 2674.6ms TimeCoverageRelationStatistics Valid=512, Invalid=2458, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:55:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2021-03-10 17:55:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3267. [2021-03-10 17:55:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3267 states, 3266 states have (on average 2.635333741579914) internal successors, (8607), 3266 states have internal predecessors, (8607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3267 states to 3267 states and 8607 transitions. [2021-03-10 17:55:05,264 INFO L78 Accepts]: Start accepts. Automaton has 3267 states and 8607 transitions. Word has length 113 [2021-03-10 17:55:05,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:05,264 INFO L480 AbstractCegarLoop]: Abstraction has 3267 states and 8607 transitions. [2021-03-10 17:55:05,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3267 states and 8607 transitions. [2021-03-10 17:55:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:05,267 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:05,267 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:05,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-10 17:55:05,267 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:05,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:05,267 INFO L82 PathProgramCache]: Analyzing trace with hash 104538020, now seen corresponding path program 27 times [2021-03-10 17:55:05,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:05,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976044458] [2021-03-10 17:55:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:05,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976044458] [2021-03-10 17:55:05,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:05,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:05,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932161308] [2021-03-10 17:55:05,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:05,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:05,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:05,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:05,990 INFO L87 Difference]: Start difference. First operand 3267 states and 8607 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:09,000 INFO L93 Difference]: Finished difference Result 3898 states and 10109 transitions. [2021-03-10 17:55:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:55:09,001 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:09,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:09,004 INFO L225 Difference]: With dead ends: 3898 [2021-03-10 17:55:09,005 INFO L226 Difference]: Without dead ends: 3768 [2021-03-10 17:55:09,005 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 532 ImplicationChecksByTransitivity, 2669.9ms TimeCoverageRelationStatistics Valid=516, Invalid=2564, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 17:55:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2021-03-10 17:55:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3234. [2021-03-10 17:55:09,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3234 states, 3233 states have (on average 2.6350139189607176) internal successors, (8519), 3233 states have internal predecessors, (8519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3234 states to 3234 states and 8519 transitions. [2021-03-10 17:55:09,044 INFO L78 Accepts]: Start accepts. Automaton has 3234 states and 8519 transitions. Word has length 113 [2021-03-10 17:55:09,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:09,044 INFO L480 AbstractCegarLoop]: Abstraction has 3234 states and 8519 transitions. [2021-03-10 17:55:09,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:09,044 INFO L276 IsEmpty]: Start isEmpty. Operand 3234 states and 8519 transitions. [2021-03-10 17:55:09,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:09,047 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:09,047 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:09,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-10 17:55:09,047 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:09,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:09,048 INFO L82 PathProgramCache]: Analyzing trace with hash -250428682, now seen corresponding path program 28 times [2021-03-10 17:55:09,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:09,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681271132] [2021-03-10 17:55:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:09,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:09,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681271132] [2021-03-10 17:55:09,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:09,788 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:09,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937288183] [2021-03-10 17:55:09,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:09,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:09,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:09,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:09,789 INFO L87 Difference]: Start difference. First operand 3234 states and 8519 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:11,857 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2021-03-10 17:55:12,161 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2021-03-10 17:55:12,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:12,809 INFO L93 Difference]: Finished difference Result 3846 states and 9991 transitions. [2021-03-10 17:55:12,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:55:12,809 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:12,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:12,813 INFO L225 Difference]: With dead ends: 3846 [2021-03-10 17:55:12,813 INFO L226 Difference]: Without dead ends: 3492 [2021-03-10 17:55:12,813 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 2691.2ms TimeCoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:55:12,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2021-03-10 17:55:12,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3025. [2021-03-10 17:55:12,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.644179894179894) internal successors, (7996), 3024 states have internal predecessors, (7996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:12,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7996 transitions. [2021-03-10 17:55:12,848 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7996 transitions. Word has length 113 [2021-03-10 17:55:12,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:12,848 INFO L480 AbstractCegarLoop]: Abstraction has 3025 states and 7996 transitions. [2021-03-10 17:55:12,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:12,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7996 transitions. [2021-03-10 17:55:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:12,850 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:12,851 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:12,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-10 17:55:12,851 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:12,851 INFO L82 PathProgramCache]: Analyzing trace with hash -821760294, now seen corresponding path program 29 times [2021-03-10 17:55:12,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:12,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756941600] [2021-03-10 17:55:12,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:12,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:13,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756941600] [2021-03-10 17:55:13,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:13,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:13,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263296178] [2021-03-10 17:55:13,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:13,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:13,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:13,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:13,576 INFO L87 Difference]: Start difference. First operand 3025 states and 7996 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:15,168 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-03-10 17:55:15,516 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-03-10 17:55:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:16,556 INFO L93 Difference]: Finished difference Result 3463 states and 8995 transitions. [2021-03-10 17:55:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:55:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:16,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:16,560 INFO L225 Difference]: With dead ends: 3463 [2021-03-10 17:55:16,560 INFO L226 Difference]: Without dead ends: 3303 [2021-03-10 17:55:16,560 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 2652.3ms TimeCoverageRelationStatistics Valid=495, Invalid=2367, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:55:16,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3303 states. [2021-03-10 17:55:16,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3303 to 3027. [2021-03-10 17:55:16,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3027 states, 3026 states have (on average 2.643423661599471) internal successors, (7999), 3026 states have internal predecessors, (7999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3027 states to 3027 states and 7999 transitions. [2021-03-10 17:55:16,594 INFO L78 Accepts]: Start accepts. Automaton has 3027 states and 7999 transitions. Word has length 113 [2021-03-10 17:55:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:16,594 INFO L480 AbstractCegarLoop]: Abstraction has 3027 states and 7999 transitions. [2021-03-10 17:55:16,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 7999 transitions. [2021-03-10 17:55:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:16,596 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:16,596 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:16,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-10 17:55:16,596 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:16,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:16,597 INFO L82 PathProgramCache]: Analyzing trace with hash 295343540, now seen corresponding path program 30 times [2021-03-10 17:55:16,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:16,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891904806] [2021-03-10 17:55:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:17,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891904806] [2021-03-10 17:55:17,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:17,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:17,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238157391] [2021-03-10 17:55:17,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:17,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:17,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:17,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:17,343 INFO L87 Difference]: Start difference. First operand 3027 states and 7999 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:18,507 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:55:19,044 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-03-10 17:55:19,198 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2021-03-10 17:55:19,355 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:55:20,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:20,383 INFO L93 Difference]: Finished difference Result 3391 states and 8842 transitions. [2021-03-10 17:55:20,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:55:20,384 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:20,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:20,387 INFO L225 Difference]: With dead ends: 3391 [2021-03-10 17:55:20,387 INFO L226 Difference]: Without dead ends: 3242 [2021-03-10 17:55:20,387 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2618.8ms TimeCoverageRelationStatistics Valid=487, Invalid=2269, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:55:20,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2021-03-10 17:55:20,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 3025. [2021-03-10 17:55:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3025 states, 3024 states have (on average 2.6438492063492065) internal successors, (7995), 3024 states have internal predecessors, (7995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3025 states to 3025 states and 7995 transitions. [2021-03-10 17:55:20,421 INFO L78 Accepts]: Start accepts. Automaton has 3025 states and 7995 transitions. Word has length 113 [2021-03-10 17:55:20,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:20,421 INFO L480 AbstractCegarLoop]: Abstraction has 3025 states and 7995 transitions. [2021-03-10 17:55:20,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3025 states and 7995 transitions. [2021-03-10 17:55:20,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:20,423 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:20,423 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:20,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-10 17:55:20,424 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:20,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:20,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1179881976, now seen corresponding path program 31 times [2021-03-10 17:55:20,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:20,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417580479] [2021-03-10 17:55:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:21,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417580479] [2021-03-10 17:55:21,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:21,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:21,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354509465] [2021-03-10 17:55:21,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:21,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:21,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:21,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:21,174 INFO L87 Difference]: Start difference. First operand 3025 states and 7995 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:22,479 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-03-10 17:55:22,702 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:24,184 INFO L93 Difference]: Finished difference Result 3760 states and 9769 transitions. [2021-03-10 17:55:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:55:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:24,188 INFO L225 Difference]: With dead ends: 3760 [2021-03-10 17:55:24,188 INFO L226 Difference]: Without dead ends: 3509 [2021-03-10 17:55:24,189 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2677.0ms TimeCoverageRelationStatistics Valid=522, Invalid=2448, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:55:24,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2021-03-10 17:55:24,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3190. [2021-03-10 17:55:24,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3190 states, 3189 states have (on average 2.634681718407024) internal successors, (8402), 3189 states have internal predecessors, (8402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:24,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3190 states to 3190 states and 8402 transitions. [2021-03-10 17:55:24,225 INFO L78 Accepts]: Start accepts. Automaton has 3190 states and 8402 transitions. Word has length 113 [2021-03-10 17:55:24,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:24,226 INFO L480 AbstractCegarLoop]: Abstraction has 3190 states and 8402 transitions. [2021-03-10 17:55:24,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 3190 states and 8402 transitions. [2021-03-10 17:55:24,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:24,228 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:24,229 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:24,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-10 17:55:24,229 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:24,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:24,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1504800862, now seen corresponding path program 32 times [2021-03-10 17:55:24,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:24,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655154491] [2021-03-10 17:55:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:25,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:25,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655154491] [2021-03-10 17:55:25,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:25,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:25,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551496013] [2021-03-10 17:55:25,158 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:25,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:25,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:25,158 INFO L87 Difference]: Start difference. First operand 3190 states and 8402 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:26,301 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:55:26,479 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-03-10 17:55:26,702 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:28,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:28,266 INFO L93 Difference]: Finished difference Result 3606 states and 9352 transitions. [2021-03-10 17:55:28,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:55:28,267 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:28,270 INFO L225 Difference]: With dead ends: 3606 [2021-03-10 17:55:28,270 INFO L226 Difference]: Without dead ends: 3476 [2021-03-10 17:55:28,271 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 2960.3ms TimeCoverageRelationStatistics Valid=524, Invalid=2556, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 17:55:28,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-03-10 17:55:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 3157. [2021-03-10 17:55:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3157 states, 3156 states have (on average 2.634347275031686) internal successors, (8314), 3156 states have internal predecessors, (8314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3157 states to 3157 states and 8314 transitions. [2021-03-10 17:55:28,307 INFO L78 Accepts]: Start accepts. Automaton has 3157 states and 8314 transitions. Word has length 113 [2021-03-10 17:55:28,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:28,307 INFO L480 AbstractCegarLoop]: Abstraction has 3157 states and 8314 transitions. [2021-03-10 17:55:28,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3157 states and 8314 transitions. [2021-03-10 17:55:28,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:28,310 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:28,310 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:28,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-10 17:55:28,310 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:28,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:28,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1347503346, now seen corresponding path program 33 times [2021-03-10 17:55:28,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:28,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727687268] [2021-03-10 17:55:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:29,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727687268] [2021-03-10 17:55:29,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:29,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:29,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878157363] [2021-03-10 17:55:29,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:29,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:29,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:29,086 INFO L87 Difference]: Start difference. First operand 3157 states and 8314 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:30,391 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-03-10 17:55:30,613 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:55:31,108 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-03-10 17:55:32,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:32,150 INFO L93 Difference]: Finished difference Result 3554 states and 9234 transitions. [2021-03-10 17:55:32,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:55:32,151 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:32,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:32,154 INFO L225 Difference]: With dead ends: 3554 [2021-03-10 17:55:32,154 INFO L226 Difference]: Without dead ends: 3255 [2021-03-10 17:55:32,154 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 2760.3ms TimeCoverageRelationStatistics Valid=495, Invalid=2367, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:55:32,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2021-03-10 17:55:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3003. [2021-03-10 17:55:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3003 states, 3002 states have (on average 2.6449033977348435) internal successors, (7940), 3002 states have internal predecessors, (7940), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:32,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3003 states to 3003 states and 7940 transitions. [2021-03-10 17:55:32,188 INFO L78 Accepts]: Start accepts. Automaton has 3003 states and 7940 transitions. Word has length 113 [2021-03-10 17:55:32,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:32,188 INFO L480 AbstractCegarLoop]: Abstraction has 3003 states and 7940 transitions. [2021-03-10 17:55:32,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3003 states and 7940 transitions. [2021-03-10 17:55:32,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:32,191 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:32,191 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:32,191 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-10 17:55:32,191 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:32,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:32,191 INFO L82 PathProgramCache]: Analyzing trace with hash 2140190286, now seen corresponding path program 34 times [2021-03-10 17:55:32,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:32,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064467223] [2021-03-10 17:55:32,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:33,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:33,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064467223] [2021-03-10 17:55:33,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:33,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:33,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772680201] [2021-03-10 17:55:33,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:33,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:33,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:33,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:33,052 INFO L87 Difference]: Start difference. First operand 3003 states and 7940 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:34,170 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:55:34,347 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-03-10 17:55:34,716 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:55:34,960 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-03-10 17:55:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:35,952 INFO L93 Difference]: Finished difference Result 3363 states and 8777 transitions. [2021-03-10 17:55:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:55:35,953 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:35,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:35,956 INFO L225 Difference]: With dead ends: 3363 [2021-03-10 17:55:35,956 INFO L226 Difference]: Without dead ends: 3194 [2021-03-10 17:55:35,956 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 438 ImplicationChecksByTransitivity, 2734.7ms TimeCoverageRelationStatistics Valid=487, Invalid=2269, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:55:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3194 states. [2021-03-10 17:55:35,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3194 to 2981. [2021-03-10 17:55:35,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2981 states, 2980 states have (on average 2.65) internal successors, (7897), 2980 states have internal predecessors, (7897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:35,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2981 states to 2981 states and 7897 transitions. [2021-03-10 17:55:35,989 INFO L78 Accepts]: Start accepts. Automaton has 2981 states and 7897 transitions. Word has length 113 [2021-03-10 17:55:35,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:35,989 INFO L480 AbstractCegarLoop]: Abstraction has 2981 states and 7897 transitions. [2021-03-10 17:55:35,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2981 states and 7897 transitions. [2021-03-10 17:55:35,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:35,992 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:35,992 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:35,992 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-10 17:55:35,992 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:35,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:35,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1107637616, now seen corresponding path program 35 times [2021-03-10 17:55:35,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:35,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761883289] [2021-03-10 17:55:35,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:36,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761883289] [2021-03-10 17:55:36,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:36,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:36,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559852466] [2021-03-10 17:55:36,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:36,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:36,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:36,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:36,703 INFO L87 Difference]: Start difference. First operand 2981 states and 7897 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:38,731 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-03-10 17:55:38,881 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:55:39,160 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-03-10 17:55:40,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:40,031 INFO L93 Difference]: Finished difference Result 3681 states and 9439 transitions. [2021-03-10 17:55:40,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:55:40,031 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:40,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:40,035 INFO L225 Difference]: With dead ends: 3681 [2021-03-10 17:55:40,035 INFO L226 Difference]: Without dead ends: 3476 [2021-03-10 17:55:40,035 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2868.6ms TimeCoverageRelationStatistics Valid=565, Invalid=2627, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:55:40,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3476 states. [2021-03-10 17:55:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3476 to 2987. [2021-03-10 17:55:40,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 2986 states have (on average 2.6476892163429335) internal successors, (7906), 2986 states have internal predecessors, (7906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 7906 transitions. [2021-03-10 17:55:40,072 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 7906 transitions. Word has length 113 [2021-03-10 17:55:40,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:40,073 INFO L480 AbstractCegarLoop]: Abstraction has 2987 states and 7906 transitions. [2021-03-10 17:55:40,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:40,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 7906 transitions. [2021-03-10 17:55:40,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:40,075 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:40,075 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:40,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-10 17:55:40,075 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:40,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:40,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1443557242, now seen corresponding path program 36 times [2021-03-10 17:55:40,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:40,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295288231] [2021-03-10 17:55:40,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:40,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:40,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295288231] [2021-03-10 17:55:40,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:40,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:40,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928211881] [2021-03-10 17:55:40,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:40,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:40,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:40,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:40,762 INFO L87 Difference]: Start difference. First operand 2987 states and 7906 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:42,282 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-03-10 17:55:42,716 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-03-10 17:55:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:43,711 INFO L93 Difference]: Finished difference Result 3479 states and 9027 transitions. [2021-03-10 17:55:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:55:43,711 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:43,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:43,714 INFO L225 Difference]: With dead ends: 3479 [2021-03-10 17:55:43,715 INFO L226 Difference]: Without dead ends: 3319 [2021-03-10 17:55:43,715 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2572.1ms TimeCoverageRelationStatistics Valid=475, Invalid=2281, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:55:43,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2021-03-10 17:55:43,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 2989. [2021-03-10 17:55:43,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2988 states have (on average 2.646921017402945) internal successors, (7909), 2988 states have internal predecessors, (7909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 7909 transitions. [2021-03-10 17:55:43,750 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 7909 transitions. Word has length 113 [2021-03-10 17:55:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:43,750 INFO L480 AbstractCegarLoop]: Abstraction has 2989 states and 7909 transitions. [2021-03-10 17:55:43,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:43,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 7909 transitions. [2021-03-10 17:55:43,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:43,752 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:43,752 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:43,752 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-10 17:55:43,752 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:43,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:43,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1734306220, now seen corresponding path program 37 times [2021-03-10 17:55:43,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:43,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884199097] [2021-03-10 17:55:43,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:44,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884199097] [2021-03-10 17:55:44,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:44,509 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:44,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119750342] [2021-03-10 17:55:44,509 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:44,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:44,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:44,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:44,510 INFO L87 Difference]: Start difference. First operand 2989 states and 7909 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:46,071 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61 [2021-03-10 17:55:46,232 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2021-03-10 17:55:46,475 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:55:47,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:47,421 INFO L93 Difference]: Finished difference Result 3405 states and 8871 transitions. [2021-03-10 17:55:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:55:47,422 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:47,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:47,425 INFO L225 Difference]: With dead ends: 3405 [2021-03-10 17:55:47,425 INFO L226 Difference]: Without dead ends: 3217 [2021-03-10 17:55:47,425 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 2588.2ms TimeCoverageRelationStatistics Valid=467, Invalid=2185, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:55:47,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2021-03-10 17:55:47,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 2948. [2021-03-10 17:55:47,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2948 states, 2947 states have (on average 2.6498133695283337) internal successors, (7809), 2947 states have internal predecessors, (7809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:47,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2948 states to 2948 states and 7809 transitions. [2021-03-10 17:55:47,458 INFO L78 Accepts]: Start accepts. Automaton has 2948 states and 7809 transitions. Word has length 113 [2021-03-10 17:55:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:47,458 INFO L480 AbstractCegarLoop]: Abstraction has 2948 states and 7809 transitions. [2021-03-10 17:55:47,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 2948 states and 7809 transitions. [2021-03-10 17:55:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:47,460 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:47,460 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:47,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-10 17:55:47,461 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:47,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:47,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1086703792, now seen corresponding path program 38 times [2021-03-10 17:55:47,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:47,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384287166] [2021-03-10 17:55:47,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:47,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:48,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384287166] [2021-03-10 17:55:48,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:48,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:48,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628575460] [2021-03-10 17:55:48,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:48,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:48,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:48,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:48,195 INFO L87 Difference]: Start difference. First operand 2948 states and 7809 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:50,071 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-03-10 17:55:50,217 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:55:50,554 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2021-03-10 17:55:51,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:51,468 INFO L93 Difference]: Finished difference Result 3507 states and 8954 transitions. [2021-03-10 17:55:51,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:55:51,469 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:51,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:51,472 INFO L225 Difference]: With dead ends: 3507 [2021-03-10 17:55:51,472 INFO L226 Difference]: Without dead ends: 3302 [2021-03-10 17:55:51,472 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 2830.1ms TimeCoverageRelationStatistics Valid=540, Invalid=2540, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 17:55:51,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3302 states. [2021-03-10 17:55:51,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3302 to 2978. [2021-03-10 17:55:51,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 2977 states have (on average 2.646288209606987) internal successors, (7878), 2977 states have internal predecessors, (7878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:51,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 7878 transitions. [2021-03-10 17:55:51,507 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 7878 transitions. Word has length 113 [2021-03-10 17:55:51,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:51,507 INFO L480 AbstractCegarLoop]: Abstraction has 2978 states and 7878 transitions. [2021-03-10 17:55:51,508 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 7878 transitions. [2021-03-10 17:55:51,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:51,510 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:51,510 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:51,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-10 17:55:51,510 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:51,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:51,510 INFO L82 PathProgramCache]: Analyzing trace with hash -750784166, now seen corresponding path program 39 times [2021-03-10 17:55:51,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:51,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072031922] [2021-03-10 17:55:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:52,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072031922] [2021-03-10 17:55:52,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:52,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:52,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279736470] [2021-03-10 17:55:52,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:52,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:52,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:52,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:52,260 INFO L87 Difference]: Start difference. First operand 2978 states and 7878 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:53,438 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:55:53,773 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:55:54,231 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 62 [2021-03-10 17:55:55,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:55,273 INFO L93 Difference]: Finished difference Result 3325 states and 8588 transitions. [2021-03-10 17:55:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:55:55,273 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:55,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:55,276 INFO L225 Difference]: With dead ends: 3325 [2021-03-10 17:55:55,276 INFO L226 Difference]: Without dead ends: 3165 [2021-03-10 17:55:55,277 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 2587.9ms TimeCoverageRelationStatistics Valid=453, Invalid=2199, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:55:55,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3165 states. [2021-03-10 17:55:55,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 2980. [2021-03-10 17:55:55,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2979 states have (on average 2.6455186304128904) internal successors, (7881), 2979 states have internal predecessors, (7881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 7881 transitions. [2021-03-10 17:55:55,310 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 7881 transitions. Word has length 113 [2021-03-10 17:55:55,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:55,310 INFO L480 AbstractCegarLoop]: Abstraction has 2980 states and 7881 transitions. [2021-03-10 17:55:55,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:55,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 7881 transitions. [2021-03-10 17:55:55,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:55,312 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:55,312 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:55,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-10 17:55:55,313 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:55,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:55,313 INFO L82 PathProgramCache]: Analyzing trace with hash 366319668, now seen corresponding path program 40 times [2021-03-10 17:55:55,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:55,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158896022] [2021-03-10 17:55:55,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:55,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:56,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158896022] [2021-03-10 17:55:56,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:56,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:56,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147279656] [2021-03-10 17:55:56,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:56,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:56,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:56,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:56,039 INFO L87 Difference]: Start difference. First operand 2980 states and 7881 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:57,577 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:55:57,750 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-03-10 17:55:57,993 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-03-10 17:55:58,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:55:58,939 INFO L93 Difference]: Finished difference Result 3251 states and 8432 transitions. [2021-03-10 17:55:58,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:55:58,939 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:55:58,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:55:58,942 INFO L225 Difference]: With dead ends: 3251 [2021-03-10 17:55:58,942 INFO L226 Difference]: Without dead ends: 3096 [2021-03-10 17:55:58,943 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 2554.4ms TimeCoverageRelationStatistics Valid=446, Invalid=2104, Unknown=0, NotChecked=0, Total=2550 [2021-03-10 17:55:58,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2021-03-10 17:55:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2972. [2021-03-10 17:55:58,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2971 states have (on average 2.6465836418714237) internal successors, (7863), 2971 states have internal predecessors, (7863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 7863 transitions. [2021-03-10 17:55:58,976 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 7863 transitions. Word has length 113 [2021-03-10 17:55:58,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:55:58,976 INFO L480 AbstractCegarLoop]: Abstraction has 2972 states and 7863 transitions. [2021-03-10 17:55:58,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:55:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 7863 transitions. [2021-03-10 17:55:58,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:55:58,979 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:55:58,979 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:55:58,979 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-10 17:55:58,979 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:55:58,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:55:58,980 INFO L82 PathProgramCache]: Analyzing trace with hash 269998838, now seen corresponding path program 41 times [2021-03-10 17:55:58,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:55:58,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913008776] [2021-03-10 17:55:58,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:55:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:55:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:55:59,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913008776] [2021-03-10 17:55:59,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:55:59,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:55:59,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303130534] [2021-03-10 17:55:59,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:55:59,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:55:59,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:55:59,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:55:59,745 INFO L87 Difference]: Start difference. First operand 2972 states and 7863 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:01,092 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-03-10 17:56:01,295 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:56:01,803 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2021-03-10 17:56:02,116 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2021-03-10 17:56:02,260 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2021-03-10 17:56:03,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:03,456 INFO L93 Difference]: Finished difference Result 3513 states and 8982 transitions. [2021-03-10 17:56:03,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:56:03,457 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:03,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:03,459 INFO L225 Difference]: With dead ends: 3513 [2021-03-10 17:56:03,459 INFO L226 Difference]: Without dead ends: 3299 [2021-03-10 17:56:03,460 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3131.1ms TimeCoverageRelationStatistics Valid=596, Invalid=2710, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 17:56:03,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3299 states. [2021-03-10 17:56:03,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3299 to 2990. [2021-03-10 17:56:03,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2989 states have (on average 2.644362663098026) internal successors, (7904), 2989 states have internal predecessors, (7904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:03,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 7904 transitions. [2021-03-10 17:56:03,493 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 7904 transitions. Word has length 113 [2021-03-10 17:56:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:03,493 INFO L480 AbstractCegarLoop]: Abstraction has 2990 states and 7904 transitions. [2021-03-10 17:56:03,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 7904 transitions. [2021-03-10 17:56:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:03,496 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:03,496 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:03,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-10 17:56:03,496 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:03,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:03,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1387102672, now seen corresponding path program 42 times [2021-03-10 17:56:03,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:03,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415997555] [2021-03-10 17:56:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:04,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415997555] [2021-03-10 17:56:04,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:04,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:56:04,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71452967] [2021-03-10 17:56:04,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:56:04,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:04,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:56:04,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:56:04,259 INFO L87 Difference]: Start difference. First operand 2990 states and 7904 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:05,633 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-03-10 17:56:05,842 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:56:06,046 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-03-10 17:56:06,608 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:56:07,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:07,989 INFO L93 Difference]: Finished difference Result 3484 states and 8919 transitions. [2021-03-10 17:56:07,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:56:07,990 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:07,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:07,993 INFO L225 Difference]: With dead ends: 3484 [2021-03-10 17:56:07,993 INFO L226 Difference]: Without dead ends: 3285 [2021-03-10 17:56:07,993 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 623 ImplicationChecksByTransitivity, 3146.9ms TimeCoverageRelationStatistics Valid=608, Invalid=2698, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 17:56:08,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3285 states. [2021-03-10 17:56:08,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3285 to 2986. [2021-03-10 17:56:08,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2986 states, 2985 states have (on average 2.6452261306532665) internal successors, (7896), 2985 states have internal predecessors, (7896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:08,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2986 states to 2986 states and 7896 transitions. [2021-03-10 17:56:08,026 INFO L78 Accepts]: Start accepts. Automaton has 2986 states and 7896 transitions. Word has length 113 [2021-03-10 17:56:08,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:08,026 INFO L480 AbstractCegarLoop]: Abstraction has 2986 states and 7896 transitions. [2021-03-10 17:56:08,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:08,026 INFO L276 IsEmpty]: Start isEmpty. Operand 2986 states and 7896 transitions. [2021-03-10 17:56:08,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:08,028 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:08,028 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:08,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-10 17:56:08,029 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:08,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:08,029 INFO L82 PathProgramCache]: Analyzing trace with hash -490672558, now seen corresponding path program 43 times [2021-03-10 17:56:08,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:08,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820891979] [2021-03-10 17:56:08,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:08,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:08,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820891979] [2021-03-10 17:56:08,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:08,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-03-10 17:56:08,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816667970] [2021-03-10 17:56:08,853 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-03-10 17:56:08,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:08,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-03-10 17:56:08,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=589, Unknown=0, NotChecked=0, Total=650 [2021-03-10 17:56:08,854 INFO L87 Difference]: Start difference. First operand 2986 states and 7896 transitions. Second operand has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:10,276 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2021-03-10 17:56:10,470 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-03-10 17:56:10,733 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-03-10 17:56:12,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:12,525 INFO L93 Difference]: Finished difference Result 3454 states and 8849 transitions. [2021-03-10 17:56:12,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:56:12,525 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:12,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:12,528 INFO L225 Difference]: With dead ends: 3454 [2021-03-10 17:56:12,528 INFO L226 Difference]: Without dead ends: 3128 [2021-03-10 17:56:12,529 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 3064.5ms TimeCoverageRelationStatistics Valid=581, Invalid=2611, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:56:12,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2021-03-10 17:56:12,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 2855. [2021-03-10 17:56:12,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2854 states have (on average 2.646811492641906) internal successors, (7554), 2854 states have internal predecessors, (7554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 7554 transitions. [2021-03-10 17:56:12,559 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 7554 transitions. Word has length 113 [2021-03-10 17:56:12,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:12,560 INFO L480 AbstractCegarLoop]: Abstraction has 2855 states and 7554 transitions. [2021-03-10 17:56:12,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.346153846153846) internal successors, (113), 26 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 7554 transitions. [2021-03-10 17:56:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:12,563 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:12,563 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:12,563 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-10 17:56:12,563 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:12,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:12,564 INFO L82 PathProgramCache]: Analyzing trace with hash 2146571156, now seen corresponding path program 44 times [2021-03-10 17:56:12,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:12,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465801537] [2021-03-10 17:56:12,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:12,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:12,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465801537] [2021-03-10 17:56:12,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:12,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:56:12,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322124104] [2021-03-10 17:56:12,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:56:12,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:12,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:56:12,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:56:12,869 INFO L87 Difference]: Start difference. First operand 2855 states and 7554 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:13,502 INFO L93 Difference]: Finished difference Result 4186 states and 10856 transitions. [2021-03-10 17:56:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:56:13,502 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:13,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:13,506 INFO L225 Difference]: With dead ends: 4186 [2021-03-10 17:56:13,507 INFO L226 Difference]: Without dead ends: 4082 [2021-03-10 17:56:13,507 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 562.5ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:56:13,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4082 states. [2021-03-10 17:56:13,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4082 to 2805. [2021-03-10 17:56:13,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 2804 states have (on average 2.641583452211127) internal successors, (7407), 2804 states have internal predecessors, (7407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:13,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 7407 transitions. [2021-03-10 17:56:13,543 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 7407 transitions. Word has length 113 [2021-03-10 17:56:13,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:13,544 INFO L480 AbstractCegarLoop]: Abstraction has 2805 states and 7407 transitions. [2021-03-10 17:56:13,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:13,544 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 7407 transitions. [2021-03-10 17:56:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:13,546 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:13,546 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:13,546 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-10 17:56:13,546 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:13,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:13,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1988705676, now seen corresponding path program 45 times [2021-03-10 17:56:13,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:13,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265787136] [2021-03-10 17:56:13,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:13,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:14,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:14,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265787136] [2021-03-10 17:56:14,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:14,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:14,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476677302] [2021-03-10 17:56:14,443 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:14,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:14,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:14,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:14,444 INFO L87 Difference]: Start difference. First operand 2805 states and 7407 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:15,473 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:15,850 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-10 17:56:16,011 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-03-10 17:56:16,228 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-10 17:56:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:18,011 INFO L93 Difference]: Finished difference Result 3271 states and 8361 transitions. [2021-03-10 17:56:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:56:18,012 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:18,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:18,015 INFO L225 Difference]: With dead ends: 3271 [2021-03-10 17:56:18,015 INFO L226 Difference]: Without dead ends: 3080 [2021-03-10 17:56:18,016 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 649 ImplicationChecksByTransitivity, 3197.8ms TimeCoverageRelationStatistics Valid=605, Invalid=2817, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:56:18,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2021-03-10 17:56:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 2847. [2021-03-10 17:56:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2847 states, 2846 states have (on average 2.635980323260717) internal successors, (7502), 2846 states have internal predecessors, (7502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:18,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 7502 transitions. [2021-03-10 17:56:18,049 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 7502 transitions. Word has length 113 [2021-03-10 17:56:18,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:18,049 INFO L480 AbstractCegarLoop]: Abstraction has 2847 states and 7502 transitions. [2021-03-10 17:56:18,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:18,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 7502 transitions. [2021-03-10 17:56:18,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:18,051 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:18,051 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:18,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-10 17:56:18,051 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:18,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1628451624, now seen corresponding path program 46 times [2021-03-10 17:56:18,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:18,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455713552] [2021-03-10 17:56:18,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:18,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:18,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455713552] [2021-03-10 17:56:18,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:18,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:56:18,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978218487] [2021-03-10 17:56:18,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:56:18,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:18,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:56:18,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:56:18,409 INFO L87 Difference]: Start difference. First operand 2847 states and 7502 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:19,076 INFO L93 Difference]: Finished difference Result 3287 states and 8327 transitions. [2021-03-10 17:56:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:56:19,076 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:19,080 INFO L225 Difference]: With dead ends: 3287 [2021-03-10 17:56:19,081 INFO L226 Difference]: Without dead ends: 3217 [2021-03-10 17:56:19,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 572.7ms TimeCoverageRelationStatistics Valid=201, Invalid=669, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:56:19,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2021-03-10 17:56:19,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 2638. [2021-03-10 17:56:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2638 states, 2637 states have (on average 2.608266970041714) internal successors, (6878), 2637 states have internal predecessors, (6878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2638 states to 2638 states and 6878 transitions. [2021-03-10 17:56:19,126 INFO L78 Accepts]: Start accepts. Automaton has 2638 states and 6878 transitions. Word has length 113 [2021-03-10 17:56:19,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:19,126 INFO L480 AbstractCegarLoop]: Abstraction has 2638 states and 6878 transitions. [2021-03-10 17:56:19,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:19,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2638 states and 6878 transitions. [2021-03-10 17:56:19,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:19,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:19,130 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:19,130 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-10 17:56:19,130 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:19,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:19,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2065821834, now seen corresponding path program 47 times [2021-03-10 17:56:19,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:19,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655662366] [2021-03-10 17:56:19,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:20,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655662366] [2021-03-10 17:56:20,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:20,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:20,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346890243] [2021-03-10 17:56:20,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:20,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:20,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:20,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:20,143 INFO L87 Difference]: Start difference. First operand 2638 states and 6878 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:21,211 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:21,373 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:56:21,745 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:56:21,924 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 17:56:23,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:23,503 INFO L93 Difference]: Finished difference Result 2994 states and 7688 transitions. [2021-03-10 17:56:23,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:56:23,503 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:23,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:23,505 INFO L225 Difference]: With dead ends: 2994 [2021-03-10 17:56:23,505 INFO L226 Difference]: Without dead ends: 2849 [2021-03-10 17:56:23,506 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 2920.6ms TimeCoverageRelationStatistics Valid=456, Invalid=2300, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:56:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2021-03-10 17:56:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2770. [2021-03-10 17:56:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2770 states, 2769 states have (on average 2.605994944023113) internal successors, (7216), 2769 states have internal predecessors, (7216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 7216 transitions. [2021-03-10 17:56:23,534 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 7216 transitions. Word has length 113 [2021-03-10 17:56:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:23,534 INFO L480 AbstractCegarLoop]: Abstraction has 2770 states and 7216 transitions. [2021-03-10 17:56:23,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 7216 transitions. [2021-03-10 17:56:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:23,536 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:23,536 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:23,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-10 17:56:23,537 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:23,537 INFO L82 PathProgramCache]: Analyzing trace with hash 974795692, now seen corresponding path program 48 times [2021-03-10 17:56:23,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:23,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356410962] [2021-03-10 17:56:23,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:24,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356410962] [2021-03-10 17:56:24,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:24,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:24,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670128622] [2021-03-10 17:56:24,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:24,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:24,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:24,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:24,438 INFO L87 Difference]: Start difference. First operand 2770 states and 7216 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:25,512 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:25,684 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:56:25,991 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:56:27,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:27,739 INFO L93 Difference]: Finished difference Result 3156 states and 8065 transitions. [2021-03-10 17:56:27,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:56:27,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:27,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:27,741 INFO L225 Difference]: With dead ends: 3156 [2021-03-10 17:56:27,741 INFO L226 Difference]: Without dead ends: 2905 [2021-03-10 17:56:27,742 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 2785.1ms TimeCoverageRelationStatistics Valid=488, Invalid=2374, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:56:27,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2021-03-10 17:56:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 2803. [2021-03-10 17:56:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 2802 states have (on average 2.5949321912919343) internal successors, (7271), 2802 states have internal predecessors, (7271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:27,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 7271 transitions. [2021-03-10 17:56:27,771 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 7271 transitions. Word has length 113 [2021-03-10 17:56:27,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:27,771 INFO L480 AbstractCegarLoop]: Abstraction has 2803 states and 7271 transitions. [2021-03-10 17:56:27,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:27,771 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 7271 transitions. [2021-03-10 17:56:27,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:27,774 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:27,774 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:27,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-10 17:56:27,774 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:27,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:27,774 INFO L82 PathProgramCache]: Analyzing trace with hash 802193722, now seen corresponding path program 49 times [2021-03-10 17:56:27,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:27,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685217701] [2021-03-10 17:56:27,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:28,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685217701] [2021-03-10 17:56:28,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:28,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:28,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975559199] [2021-03-10 17:56:28,663 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:28,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:28,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:28,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:28,664 INFO L87 Difference]: Start difference. First operand 2803 states and 7271 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:29,716 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:29,883 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:56:30,164 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:56:31,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:31,879 INFO L93 Difference]: Finished difference Result 3002 states and 7648 transitions. [2021-03-10 17:56:31,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:56:31,879 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:31,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:31,881 INFO L225 Difference]: With dead ends: 3002 [2021-03-10 17:56:31,881 INFO L226 Difference]: Without dead ends: 2718 [2021-03-10 17:56:31,881 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 2860.6ms TimeCoverageRelationStatistics Valid=490, Invalid=2480, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:56:31,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2021-03-10 17:56:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2616. [2021-03-10 17:56:31,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2616 states, 2615 states have (on average 2.6091778202676865) internal successors, (6823), 2615 states have internal predecessors, (6823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:31,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2616 states to 2616 states and 6823 transitions. [2021-03-10 17:56:31,908 INFO L78 Accepts]: Start accepts. Automaton has 2616 states and 6823 transitions. Word has length 113 [2021-03-10 17:56:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:31,908 INFO L480 AbstractCegarLoop]: Abstraction has 2616 states and 6823 transitions. [2021-03-10 17:56:31,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 2616 states and 6823 transitions. [2021-03-10 17:56:31,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:31,910 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:31,910 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:31,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-10 17:56:31,911 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:31,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:31,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1310374498, now seen corresponding path program 50 times [2021-03-10 17:56:31,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:31,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818586652] [2021-03-10 17:56:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:32,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818586652] [2021-03-10 17:56:32,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:32,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:32,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973573478] [2021-03-10 17:56:32,857 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:32,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:32,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:32,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:32,857 INFO L87 Difference]: Start difference. First operand 2616 states and 6823 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:33,962 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:34,131 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:56:34,430 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:56:34,776 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-10 17:56:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:36,016 INFO L93 Difference]: Finished difference Result 2763 states and 7093 transitions. [2021-03-10 17:56:36,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:56:36,017 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:36,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:36,019 INFO L225 Difference]: With dead ends: 2763 [2021-03-10 17:56:36,020 INFO L226 Difference]: Without dead ends: 2605 [2021-03-10 17:56:36,020 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 2818.0ms TimeCoverageRelationStatistics Valid=468, Invalid=2288, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:56:36,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2021-03-10 17:56:36,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 2605. [2021-03-10 17:56:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2605 states, 2604 states have (on average 2.6117511520737327) internal successors, (6801), 2604 states have internal predecessors, (6801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2605 states to 2605 states and 6801 transitions. [2021-03-10 17:56:36,048 INFO L78 Accepts]: Start accepts. Automaton has 2605 states and 6801 transitions. Word has length 113 [2021-03-10 17:56:36,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:36,048 INFO L480 AbstractCegarLoop]: Abstraction has 2605 states and 6801 transitions. [2021-03-10 17:56:36,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:36,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2605 states and 6801 transitions. [2021-03-10 17:56:36,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:36,050 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:36,050 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:36,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-10 17:56:36,050 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1481591984, now seen corresponding path program 51 times [2021-03-10 17:56:36,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:36,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78323716] [2021-03-10 17:56:36,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:36,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:36,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78323716] [2021-03-10 17:56:36,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:36,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:36,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920816102] [2021-03-10 17:56:36,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:36,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:36,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:36,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:36,966 INFO L87 Difference]: Start difference. First operand 2605 states and 6801 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:38,064 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:56:38,236 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:56:38,644 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-03-10 17:56:38,890 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-10 17:56:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:40,023 INFO L93 Difference]: Finished difference Result 2760 states and 7083 transitions. [2021-03-10 17:56:40,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:56:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:40,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:40,026 INFO L225 Difference]: With dead ends: 2760 [2021-03-10 17:56:40,026 INFO L226 Difference]: Without dead ends: 2550 [2021-03-10 17:56:40,027 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2776.3ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:56:40,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2550 states. [2021-03-10 17:56:40,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2550 to 2550. [2021-03-10 17:56:40,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2550 states, 2549 states have (on average 2.625343271871322) internal successors, (6692), 2549 states have internal predecessors, (6692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:40,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2550 states to 2550 states and 6692 transitions. [2021-03-10 17:56:40,055 INFO L78 Accepts]: Start accepts. Automaton has 2550 states and 6692 transitions. Word has length 113 [2021-03-10 17:56:40,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:40,055 INFO L480 AbstractCegarLoop]: Abstraction has 2550 states and 6692 transitions. [2021-03-10 17:56:40,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:40,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2550 states and 6692 transitions. [2021-03-10 17:56:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:40,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:40,057 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:40,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-10 17:56:40,058 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:40,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:40,058 INFO L82 PathProgramCache]: Analyzing trace with hash 324922924, now seen corresponding path program 52 times [2021-03-10 17:56:40,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:40,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664496695] [2021-03-10 17:56:40,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:41,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:41,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664496695] [2021-03-10 17:56:41,037 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:41,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:41,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592331523] [2021-03-10 17:56:41,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:41,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:41,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:41,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:41,038 INFO L87 Difference]: Start difference. First operand 2550 states and 6692 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:42,418 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-10 17:56:42,586 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-03-10 17:56:42,813 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-10 17:56:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:43,989 INFO L93 Difference]: Finished difference Result 2743 states and 7071 transitions. [2021-03-10 17:56:43,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:56:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:43,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:43,992 INFO L225 Difference]: With dead ends: 2743 [2021-03-10 17:56:43,993 INFO L226 Difference]: Without dead ends: 2547 [2021-03-10 17:56:43,993 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 424 ImplicationChecksByTransitivity, 2757.1ms TimeCoverageRelationStatistics Valid=451, Invalid=2201, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:56:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2547 states. [2021-03-10 17:56:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2547 to 2507. [2021-03-10 17:56:44,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2507 states, 2506 states have (on average 2.629289704708699) internal successors, (6589), 2506 states have internal predecessors, (6589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:44,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 6589 transitions. [2021-03-10 17:56:44,020 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 6589 transitions. Word has length 113 [2021-03-10 17:56:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:44,020 INFO L480 AbstractCegarLoop]: Abstraction has 2507 states and 6589 transitions. [2021-03-10 17:56:44,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 6589 transitions. [2021-03-10 17:56:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:44,022 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:44,023 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:44,023 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-10 17:56:44,023 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:44,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1046324424, now seen corresponding path program 53 times [2021-03-10 17:56:44,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:44,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870912254] [2021-03-10 17:56:44,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:44,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870912254] [2021-03-10 17:56:44,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:44,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:44,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258899600] [2021-03-10 17:56:44,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:44,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:44,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:44,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:44,988 INFO L87 Difference]: Start difference. First operand 2507 states and 6589 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:46,322 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:56:47,321 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-03-10 17:56:47,698 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 17:56:47,840 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2021-03-10 17:56:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:49,304 INFO L93 Difference]: Finished difference Result 4136 states and 10701 transitions. [2021-03-10 17:56:49,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:56:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:49,309 INFO L225 Difference]: With dead ends: 4136 [2021-03-10 17:56:49,309 INFO L226 Difference]: Without dead ends: 3930 [2021-03-10 17:56:49,310 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 3642.6ms TimeCoverageRelationStatistics Valid=604, Invalid=3056, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:56:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2021-03-10 17:56:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 2628. [2021-03-10 17:56:49,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2628 states, 2627 states have (on average 2.640274076893795) internal successors, (6936), 2627 states have internal predecessors, (6936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2628 states to 2628 states and 6936 transitions. [2021-03-10 17:56:49,346 INFO L78 Accepts]: Start accepts. Automaton has 2628 states and 6936 transitions. Word has length 113 [2021-03-10 17:56:49,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:49,346 INFO L480 AbstractCegarLoop]: Abstraction has 2628 states and 6936 transitions. [2021-03-10 17:56:49,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:49,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2628 states and 6936 transitions. [2021-03-10 17:56:49,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:49,349 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:49,349 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:49,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-10 17:56:49,349 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:49,349 INFO L82 PathProgramCache]: Analyzing trace with hash -956311026, now seen corresponding path program 54 times [2021-03-10 17:56:49,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:49,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098424642] [2021-03-10 17:56:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:49,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:50,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098424642] [2021-03-10 17:56:50,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:50,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:50,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980221483] [2021-03-10 17:56:50,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:50,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:50,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:50,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:50,399 INFO L87 Difference]: Start difference. First operand 2628 states and 6936 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:51,474 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:56:51,725 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:56:54,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:56:54,448 INFO L93 Difference]: Finished difference Result 4547 states and 11914 transitions. [2021-03-10 17:56:54,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:56:54,449 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:56:54,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:56:54,453 INFO L225 Difference]: With dead ends: 4547 [2021-03-10 17:56:54,453 INFO L226 Difference]: Without dead ends: 4156 [2021-03-10 17:56:54,453 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3691.2ms TimeCoverageRelationStatistics Valid=632, Invalid=3028, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:56:54,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2021-03-10 17:56:54,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 2903. [2021-03-10 17:56:54,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2902 states have (on average 2.6364576154376294) internal successors, (7651), 2902 states have internal predecessors, (7651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:54,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 7651 transitions. [2021-03-10 17:56:54,488 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 7651 transitions. Word has length 113 [2021-03-10 17:56:54,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:56:54,488 INFO L480 AbstractCegarLoop]: Abstraction has 2903 states and 7651 transitions. [2021-03-10 17:56:54,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:54,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 7651 transitions. [2021-03-10 17:56:54,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:56:54,491 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:56:54,491 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:56:54,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-10 17:56:54,491 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:56:54,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:56:54,491 INFO L82 PathProgramCache]: Analyzing trace with hash 252114338, now seen corresponding path program 55 times [2021-03-10 17:56:54,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:56:54,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554738646] [2021-03-10 17:56:54,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:56:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:56:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:56:55,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554738646] [2021-03-10 17:56:55,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:56:55,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:56:55,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151157267] [2021-03-10 17:56:55,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:56:55,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:56:55,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:56:55,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:56:55,499 INFO L87 Difference]: Start difference. First operand 2903 states and 7651 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:56:56,677 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:56:56,944 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:56:58,335 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-03-10 17:56:58,474 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-03-10 17:56:58,626 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-03-10 17:57:00,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:00,061 INFO L93 Difference]: Finished difference Result 4287 states and 11177 transitions. [2021-03-10 17:57:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-10 17:57:00,062 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:00,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:00,065 INFO L225 Difference]: With dead ends: 4287 [2021-03-10 17:57:00,065 INFO L226 Difference]: Without dead ends: 4101 [2021-03-10 17:57:00,066 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 3933.6ms TimeCoverageRelationStatistics Valid=658, Invalid=3248, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 17:57:00,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2021-03-10 17:57:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 2848. [2021-03-10 17:57:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2848 states, 2847 states have (on average 2.6332982086406744) internal successors, (7497), 2847 states have internal predecessors, (7497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2848 states to 2848 states and 7497 transitions. [2021-03-10 17:57:00,101 INFO L78 Accepts]: Start accepts. Automaton has 2848 states and 7497 transitions. Word has length 113 [2021-03-10 17:57:00,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:00,101 INFO L480 AbstractCegarLoop]: Abstraction has 2848 states and 7497 transitions. [2021-03-10 17:57:00,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2848 states and 7497 transitions. [2021-03-10 17:57:00,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:00,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:00,104 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:00,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-10 17:57:00,104 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:00,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:00,104 INFO L82 PathProgramCache]: Analyzing trace with hash -102852364, now seen corresponding path program 56 times [2021-03-10 17:57:00,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:00,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305993149] [2021-03-10 17:57:00,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:00,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:01,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:01,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305993149] [2021-03-10 17:57:01,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:01,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:01,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255618904] [2021-03-10 17:57:01,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:01,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:01,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:01,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:01,232 INFO L87 Difference]: Start difference. First operand 2848 states and 7497 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:02,358 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:02,620 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:03,624 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-03-10 17:57:03,975 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-03-10 17:57:04,115 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-03-10 17:57:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:05,215 INFO L93 Difference]: Finished difference Result 4203 states and 10975 transitions. [2021-03-10 17:57:05,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 17:57:05,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:05,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:05,219 INFO L225 Difference]: With dead ends: 4203 [2021-03-10 17:57:05,219 INFO L226 Difference]: Without dead ends: 3737 [2021-03-10 17:57:05,219 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 3646.3ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 17:57:05,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3737 states. [2021-03-10 17:57:05,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3737 to 2573. [2021-03-10 17:57:05,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 2572 states have (on average 2.63452566096423) internal successors, (6776), 2572 states have internal predecessors, (6776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 6776 transitions. [2021-03-10 17:57:05,253 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 6776 transitions. Word has length 113 [2021-03-10 17:57:05,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:05,253 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 6776 transitions. [2021-03-10 17:57:05,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 6776 transitions. [2021-03-10 17:57:05,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:05,256 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:05,256 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:05,256 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-10 17:57:05,256 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:05,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -674183976, now seen corresponding path program 57 times [2021-03-10 17:57:05,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:05,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99193836] [2021-03-10 17:57:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:06,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:06,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99193836] [2021-03-10 17:57:06,219 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:06,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:06,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266491466] [2021-03-10 17:57:06,220 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:06,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:06,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:06,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:06,220 INFO L87 Difference]: Start difference. First operand 2573 states and 6776 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:07,394 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:07,660 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:08,178 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 17:57:08,544 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 17:57:09,037 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 17:57:09,190 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 17:57:10,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:10,557 INFO L93 Difference]: Finished difference Result 3503 states and 9045 transitions. [2021-03-10 17:57:10,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 17:57:10,558 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:10,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:10,561 INFO L225 Difference]: With dead ends: 3503 [2021-03-10 17:57:10,561 INFO L226 Difference]: Without dead ends: 3297 [2021-03-10 17:57:10,562 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3716.0ms TimeCoverageRelationStatistics Valid=646, Invalid=3014, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 17:57:10,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3297 states. [2021-03-10 17:57:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3297 to 2575. [2021-03-10 17:57:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2575 states, 2574 states have (on average 2.633644133644134) internal successors, (6779), 2574 states have internal predecessors, (6779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2575 states to 2575 states and 6779 transitions. [2021-03-10 17:57:10,594 INFO L78 Accepts]: Start accepts. Automaton has 2575 states and 6779 transitions. Word has length 113 [2021-03-10 17:57:10,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:10,594 INFO L480 AbstractCegarLoop]: Abstraction has 2575 states and 6779 transitions. [2021-03-10 17:57:10,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2575 states and 6779 transitions. [2021-03-10 17:57:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:10,596 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:10,596 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:10,596 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-10 17:57:10,596 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:10,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1678689130, now seen corresponding path program 58 times [2021-03-10 17:57:10,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:10,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178166150] [2021-03-10 17:57:10,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:10,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:10,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178166150] [2021-03-10 17:57:10,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:10,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:57:10,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130949156] [2021-03-10 17:57:10,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:57:10,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:10,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:57:10,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:57:10,928 INFO L87 Difference]: Start difference. First operand 2575 states and 6779 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:11,591 INFO L93 Difference]: Finished difference Result 4728 states and 12231 transitions. [2021-03-10 17:57:11,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:57:11,592 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:11,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:11,597 INFO L225 Difference]: With dead ends: 4728 [2021-03-10 17:57:11,597 INFO L226 Difference]: Without dead ends: 4728 [2021-03-10 17:57:11,597 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 589.7ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:57:11,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4728 states. [2021-03-10 17:57:11,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4728 to 2645. [2021-03-10 17:57:11,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 2.617624810892587) internal successors, (6921), 2644 states have internal predecessors, (6921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 6921 transitions. [2021-03-10 17:57:11,635 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 6921 transitions. Word has length 113 [2021-03-10 17:57:11,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:11,635 INFO L480 AbstractCegarLoop]: Abstraction has 2645 states and 6921 transitions. [2021-03-10 17:57:11,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:11,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 6921 transitions. [2021-03-10 17:57:11,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:11,638 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:11,638 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:11,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-10 17:57:11,638 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:11,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:11,638 INFO L82 PathProgramCache]: Analyzing trace with hash 442919858, now seen corresponding path program 59 times [2021-03-10 17:57:11,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:11,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816913094] [2021-03-10 17:57:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:12,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816913094] [2021-03-10 17:57:12,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:12,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:12,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86032185] [2021-03-10 17:57:12,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:12,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:12,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:12,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:12,661 INFO L87 Difference]: Start difference. First operand 2645 states and 6921 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:13,786 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:14,044 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:14,495 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 17:57:14,667 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:57:14,814 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:57:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:15,991 INFO L93 Difference]: Finished difference Result 3331 states and 8677 transitions. [2021-03-10 17:57:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:57:15,992 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:15,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:15,996 INFO L225 Difference]: With dead ends: 3331 [2021-03-10 17:57:15,996 INFO L226 Difference]: Without dead ends: 3182 [2021-03-10 17:57:15,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 3076.3ms TimeCoverageRelationStatistics Valid=489, Invalid=2373, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:57:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2021-03-10 17:57:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 2643. [2021-03-10 17:57:16,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2643 states, 2642 states have (on average 2.6180923542770627) internal successors, (6917), 2642 states have internal predecessors, (6917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2643 states to 2643 states and 6917 transitions. [2021-03-10 17:57:16,030 INFO L78 Accepts]: Start accepts. Automaton has 2643 states and 6917 transitions. Word has length 113 [2021-03-10 17:57:16,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:16,030 INFO L480 AbstractCegarLoop]: Abstraction has 2643 states and 6917 transitions. [2021-03-10 17:57:16,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:16,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2643 states and 6917 transitions. [2021-03-10 17:57:16,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:16,032 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:16,032 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:16,032 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-10 17:57:16,033 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:16,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:16,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1032305658, now seen corresponding path program 60 times [2021-03-10 17:57:16,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:16,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047511931] [2021-03-10 17:57:16,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:16,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:16,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047511931] [2021-03-10 17:57:16,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:16,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:16,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946494221] [2021-03-10 17:57:16,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:16,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:16,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:16,956 INFO L87 Difference]: Start difference. First operand 2643 states and 6917 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:18,100 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:18,383 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:18,595 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:57:18,755 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:57:20,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:20,637 INFO L93 Difference]: Finished difference Result 3687 states and 9560 transitions. [2021-03-10 17:57:20,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 17:57:20,638 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:20,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:20,641 INFO L225 Difference]: With dead ends: 3687 [2021-03-10 17:57:20,641 INFO L226 Difference]: Without dead ends: 3436 [2021-03-10 17:57:20,642 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 3150.1ms TimeCoverageRelationStatistics Valid=531, Invalid=2549, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 17:57:20,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3436 states. [2021-03-10 17:57:20,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3436 to 2841. [2021-03-10 17:57:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2840 states have (on average 2.602112676056338) internal successors, (7390), 2840 states have internal predecessors, (7390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 7390 transitions. [2021-03-10 17:57:20,676 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 7390 transitions. Word has length 113 [2021-03-10 17:57:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:20,677 INFO L480 AbstractCegarLoop]: Abstraction has 2841 states and 7390 transitions. [2021-03-10 17:57:20,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 7390 transitions. [2021-03-10 17:57:20,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:20,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:20,679 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:20,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-10 17:57:20,680 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:20,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1652377180, now seen corresponding path program 61 times [2021-03-10 17:57:20,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:20,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347364952] [2021-03-10 17:57:20,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:20,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:21,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347364952] [2021-03-10 17:57:21,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:21,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:21,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865215126] [2021-03-10 17:57:21,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:21,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:21,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:21,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:21,715 INFO L87 Difference]: Start difference. First operand 2841 states and 7390 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:22,791 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:23,043 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:23,231 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:57:23,378 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:57:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:25,274 INFO L93 Difference]: Finished difference Result 3533 states and 9143 transitions. [2021-03-10 17:57:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:57:25,274 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:25,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:25,278 INFO L225 Difference]: With dead ends: 3533 [2021-03-10 17:57:25,278 INFO L226 Difference]: Without dead ends: 3403 [2021-03-10 17:57:25,278 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3330.1ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:57:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2021-03-10 17:57:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 2808. [2021-03-10 17:57:25,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2808 states, 2807 states have (on average 2.6013537584609905) internal successors, (7302), 2807 states have internal predecessors, (7302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2808 states to 2808 states and 7302 transitions. [2021-03-10 17:57:25,312 INFO L78 Accepts]: Start accepts. Automaton has 2808 states and 7302 transitions. Word has length 113 [2021-03-10 17:57:25,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:25,313 INFO L480 AbstractCegarLoop]: Abstraction has 2808 states and 7302 transitions. [2021-03-10 17:57:25,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:25,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2808 states and 7302 transitions. [2021-03-10 17:57:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:25,315 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:25,315 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:25,315 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-10 17:57:25,315 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:25,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:25,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1199927028, now seen corresponding path program 62 times [2021-03-10 17:57:25,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:25,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155250083] [2021-03-10 17:57:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:26,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:26,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155250083] [2021-03-10 17:57:26,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:26,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:26,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725419929] [2021-03-10 17:57:26,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:26,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:26,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:26,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:26,367 INFO L87 Difference]: Start difference. First operand 2808 states and 7302 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:27,471 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:27,729 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:27,944 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:57:28,095 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 17:57:28,675 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 17:57:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:29,843 INFO L93 Difference]: Finished difference Result 3481 states and 9025 transitions. [2021-03-10 17:57:29,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:57:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:29,847 INFO L225 Difference]: With dead ends: 3481 [2021-03-10 17:57:29,848 INFO L226 Difference]: Without dead ends: 3182 [2021-03-10 17:57:29,848 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3213.1ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:57:29,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3182 states. [2021-03-10 17:57:29,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3182 to 2654. [2021-03-10 17:57:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2653 states have (on average 2.6113833396155295) internal successors, (6928), 2653 states have internal predecessors, (6928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 6928 transitions. [2021-03-10 17:57:29,880 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 6928 transitions. Word has length 113 [2021-03-10 17:57:29,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:29,880 INFO L480 AbstractCegarLoop]: Abstraction has 2654 states and 6928 transitions. [2021-03-10 17:57:29,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:29,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 6928 transitions. [2021-03-10 17:57:29,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:29,883 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:29,883 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:29,883 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-10 17:57:29,883 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:29,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:29,883 INFO L82 PathProgramCache]: Analyzing trace with hash -2007200692, now seen corresponding path program 63 times [2021-03-10 17:57:29,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:29,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612099970] [2021-03-10 17:57:29,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:30,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:30,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612099970] [2021-03-10 17:57:30,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:30,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:30,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618898169] [2021-03-10 17:57:30,926 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:30,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:30,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:30,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:30,927 INFO L87 Difference]: Start difference. First operand 2654 states and 6928 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:32,154 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:32,430 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 57 [2021-03-10 17:57:32,636 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 61 [2021-03-10 17:57:33,110 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-03-10 17:57:33,269 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 17:57:34,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:34,494 INFO L93 Difference]: Finished difference Result 3290 states and 8568 transitions. [2021-03-10 17:57:34,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:57:34,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:34,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:34,499 INFO L225 Difference]: With dead ends: 3290 [2021-03-10 17:57:34,499 INFO L226 Difference]: Without dead ends: 3121 [2021-03-10 17:57:34,499 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 3241.1ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:57:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3121 states. [2021-03-10 17:57:34,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3121 to 2632. [2021-03-10 17:57:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2632 states, 2631 states have (on average 2.6168757126567845) internal successors, (6885), 2631 states have internal predecessors, (6885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:34,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2632 states to 2632 states and 6885 transitions. [2021-03-10 17:57:34,532 INFO L78 Accepts]: Start accepts. Automaton has 2632 states and 6885 transitions. Word has length 113 [2021-03-10 17:57:34,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:34,532 INFO L480 AbstractCegarLoop]: Abstraction has 2632 states and 6885 transitions. [2021-03-10 17:57:34,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 2632 states and 6885 transitions. [2021-03-10 17:57:34,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:34,534 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:34,534 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:34,534 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-10 17:57:34,534 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:34,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:34,535 INFO L82 PathProgramCache]: Analyzing trace with hash -2130442504, now seen corresponding path program 64 times [2021-03-10 17:57:34,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:34,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857684773] [2021-03-10 17:57:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:35,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:35,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857684773] [2021-03-10 17:57:35,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:35,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:35,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826902348] [2021-03-10 17:57:35,530 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:35,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:35,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:35,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:35,530 INFO L87 Difference]: Start difference. First operand 2632 states and 6885 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:36,646 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:37,033 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2021-03-10 17:57:37,235 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-03-10 17:57:37,645 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 17:57:37,814 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 17:57:38,262 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 17:57:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:39,400 INFO L93 Difference]: Finished difference Result 3329 states and 8492 transitions. [2021-03-10 17:57:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:57:39,401 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:39,404 INFO L225 Difference]: With dead ends: 3329 [2021-03-10 17:57:39,405 INFO L226 Difference]: Without dead ends: 3169 [2021-03-10 17:57:39,405 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 3403.6ms TimeCoverageRelationStatistics Valid=542, Invalid=2650, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:57:39,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3169 states. [2021-03-10 17:57:39,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3169 to 2642. [2021-03-10 17:57:39,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 2641 states have (on average 2.615675880348353) internal successors, (6908), 2641 states have internal predecessors, (6908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 6908 transitions. [2021-03-10 17:57:39,437 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 6908 transitions. Word has length 113 [2021-03-10 17:57:39,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:39,437 INFO L480 AbstractCegarLoop]: Abstraction has 2642 states and 6908 transitions. [2021-03-10 17:57:39,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:39,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 6908 transitions. [2021-03-10 17:57:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:39,439 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:39,440 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:39,440 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-10 17:57:39,440 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:39,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:39,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1013338670, now seen corresponding path program 65 times [2021-03-10 17:57:39,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:39,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859939394] [2021-03-10 17:57:39,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:40,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859939394] [2021-03-10 17:57:40,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:40,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:40,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387496691] [2021-03-10 17:57:40,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:40,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:40,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:40,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:40,382 INFO L87 Difference]: Start difference. First operand 2642 states and 6908 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:41,588 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:42,013 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2021-03-10 17:57:42,256 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2021-03-10 17:57:42,451 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 17:57:42,606 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:57:43,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:43,845 INFO L93 Difference]: Finished difference Result 3131 states and 8103 transitions. [2021-03-10 17:57:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:57:43,845 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:43,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:43,849 INFO L225 Difference]: With dead ends: 3131 [2021-03-10 17:57:43,849 INFO L226 Difference]: Without dead ends: 2982 [2021-03-10 17:57:43,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 3014.7ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:57:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2021-03-10 17:57:43,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2640. [2021-03-10 17:57:43,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 2.6157635467980294) internal successors, (6903), 2639 states have internal predecessors, (6903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:43,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 6903 transitions. [2021-03-10 17:57:43,880 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 6903 transitions. Word has length 113 [2021-03-10 17:57:43,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:43,880 INFO L480 AbstractCegarLoop]: Abstraction has 2640 states and 6903 transitions. [2021-03-10 17:57:43,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:43,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 6903 transitions. [2021-03-10 17:57:43,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:43,882 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:43,882 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:43,882 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-10 17:57:43,883 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:43,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:43,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1403853396, now seen corresponding path program 66 times [2021-03-10 17:57:43,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:43,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680065359] [2021-03-10 17:57:43,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:44,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680065359] [2021-03-10 17:57:44,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:44,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:44,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83206286] [2021-03-10 17:57:44,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:44,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:44,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:44,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:44,931 INFO L87 Difference]: Start difference. First operand 2640 states and 6903 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:46,160 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:46,582 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 58 [2021-03-10 17:57:46,776 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-03-10 17:57:47,044 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 17:57:47,641 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:57:49,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:49,097 INFO L93 Difference]: Finished difference Result 3344 states and 8539 transitions. [2021-03-10 17:57:49,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:57:49,097 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:49,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:49,101 INFO L225 Difference]: With dead ends: 3344 [2021-03-10 17:57:49,101 INFO L226 Difference]: Without dead ends: 3135 [2021-03-10 17:57:49,101 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3714.0ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:57:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3135 states. [2021-03-10 17:57:49,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3135 to 2674. [2021-03-10 17:57:49,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2674 states, 2673 states have (on average 2.610175832398055) internal successors, (6977), 2673 states have internal predecessors, (6977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:49,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 6977 transitions. [2021-03-10 17:57:49,135 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 6977 transitions. Word has length 113 [2021-03-10 17:57:49,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:49,135 INFO L480 AbstractCegarLoop]: Abstraction has 2674 states and 6977 transitions. [2021-03-10 17:57:49,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 6977 transitions. [2021-03-10 17:57:49,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:49,137 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:49,137 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:49,137 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-10 17:57:49,138 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:49,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:49,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1132889908, now seen corresponding path program 67 times [2021-03-10 17:57:49,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:49,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188211191] [2021-03-10 17:57:49,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:50,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188211191] [2021-03-10 17:57:50,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:50,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:50,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553638604] [2021-03-10 17:57:50,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:50,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:50,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:50,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:50,135 INFO L87 Difference]: Start difference. First operand 2674 states and 6977 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:51,302 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:51,486 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:57:51,840 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:57:54,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:57:54,654 INFO L93 Difference]: Finished difference Result 4627 states and 12094 transitions. [2021-03-10 17:57:54,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:57:54,655 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:57:54,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:57:54,660 INFO L225 Difference]: With dead ends: 4627 [2021-03-10 17:57:54,660 INFO L226 Difference]: Without dead ends: 4236 [2021-03-10 17:57:54,660 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 3751.3ms TimeCoverageRelationStatistics Valid=621, Invalid=2919, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:57:54,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4236 states. [2021-03-10 17:57:54,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4236 to 3169. [2021-03-10 17:57:54,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 3168 states have (on average 2.6363636363636362) internal successors, (8352), 3168 states have internal predecessors, (8352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 8352 transitions. [2021-03-10 17:57:54,702 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 8352 transitions. Word has length 113 [2021-03-10 17:57:54,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:57:54,703 INFO L480 AbstractCegarLoop]: Abstraction has 3169 states and 8352 transitions. [2021-03-10 17:57:54,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:54,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 8352 transitions. [2021-03-10 17:57:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:57:54,706 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:57:54,706 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:57:54,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-10 17:57:54,706 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:57:54,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:57:54,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1551792930, now seen corresponding path program 68 times [2021-03-10 17:57:54,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:57:54,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701425857] [2021-03-10 17:57:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:57:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:57:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:57:55,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701425857] [2021-03-10 17:57:55,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:57:55,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:57:55,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158364941] [2021-03-10 17:57:55,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:57:55,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:57:55,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:57:55,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:57:55,737 INFO L87 Difference]: Start difference. First operand 3169 states and 8352 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:57:56,991 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:57:57,191 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:57:57,538 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:57:58,195 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:57:58,777 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:57:59,063 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:58:00,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:00,773 INFO L93 Difference]: Finished difference Result 4367 states and 11357 transitions. [2021-03-10 17:58:00,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-03-10 17:58:00,774 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:00,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:00,777 INFO L225 Difference]: With dead ends: 4367 [2021-03-10 17:58:00,778 INFO L226 Difference]: Without dead ends: 4181 [2021-03-10 17:58:00,778 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 4097.2ms TimeCoverageRelationStatistics Valid=642, Invalid=3140, Unknown=0, NotChecked=0, Total=3782 [2021-03-10 17:58:00,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2021-03-10 17:58:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3114. [2021-03-10 17:58:00,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 2.633472534532605) internal successors, (8198), 3113 states have internal predecessors, (8198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:00,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 8198 transitions. [2021-03-10 17:58:00,817 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 8198 transitions. Word has length 113 [2021-03-10 17:58:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:00,817 INFO L480 AbstractCegarLoop]: Abstraction has 3114 states and 8198 transitions. [2021-03-10 17:58:00,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 8198 transitions. [2021-03-10 17:58:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:00,820 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:00,820 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:00,820 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-10 17:58:00,820 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:00,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:00,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1300511278, now seen corresponding path program 69 times [2021-03-10 17:58:00,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:00,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129762602] [2021-03-10 17:58:00,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:01,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:01,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129762602] [2021-03-10 17:58:01,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:01,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:01,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99307294] [2021-03-10 17:58:01,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:01,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:01,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:01,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:01,840 INFO L87 Difference]: Start difference. First operand 3114 states and 8198 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:02,867 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 17:58:03,048 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:58:03,252 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:58:03,591 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:58:04,727 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-03-10 17:58:04,888 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-03-10 17:58:06,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:06,598 INFO L93 Difference]: Finished difference Result 4409 states and 11382 transitions. [2021-03-10 17:58:06,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:58:06,599 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:06,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:06,602 INFO L225 Difference]: With dead ends: 4409 [2021-03-10 17:58:06,602 INFO L226 Difference]: Without dead ends: 3972 [2021-03-10 17:58:06,602 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 3911.7ms TimeCoverageRelationStatistics Valid=582, Invalid=2958, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:58:06,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3972 states. [2021-03-10 17:58:06,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3972 to 2872. [2021-03-10 17:58:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2872 states, 2871 states have (on average 2.6255660048763496) internal successors, (7538), 2871 states have internal predecessors, (7538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:06,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2872 states to 2872 states and 7538 transitions. [2021-03-10 17:58:06,638 INFO L78 Accepts]: Start accepts. Automaton has 2872 states and 7538 transitions. Word has length 113 [2021-03-10 17:58:06,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:06,638 INFO L480 AbstractCegarLoop]: Abstraction has 2872 states and 7538 transitions. [2021-03-10 17:58:06,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:06,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2872 states and 7538 transitions. [2021-03-10 17:58:06,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:06,641 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:06,641 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:06,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-10 17:58:06,641 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:06,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:06,641 INFO L82 PathProgramCache]: Analyzing trace with hash -2107784942, now seen corresponding path program 70 times [2021-03-10 17:58:06,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:06,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239933188] [2021-03-10 17:58:06,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:07,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239933188] [2021-03-10 17:58:07,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:07,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:07,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056720741] [2021-03-10 17:58:07,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:07,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:07,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:07,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:07,697 INFO L87 Difference]: Start difference. First operand 2872 states and 7538 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:08,926 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:58:09,129 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:58:09,512 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-03-10 17:58:10,142 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:58:10,797 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:58:12,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:12,543 INFO L93 Difference]: Finished difference Result 3764 states and 9711 transitions. [2021-03-10 17:58:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:58:12,544 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:12,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:12,547 INFO L225 Difference]: With dead ends: 3764 [2021-03-10 17:58:12,547 INFO L226 Difference]: Without dead ends: 3556 [2021-03-10 17:58:12,548 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 3893.6ms TimeCoverageRelationStatistics Valid=631, Invalid=2909, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:58:12,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3556 states. [2021-03-10 17:58:12,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3556 to 2861. [2021-03-10 17:58:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2861 states, 2860 states have (on average 2.627972027972028) internal successors, (7516), 2860 states have internal predecessors, (7516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:12,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2861 states to 2861 states and 7516 transitions. [2021-03-10 17:58:12,583 INFO L78 Accepts]: Start accepts. Automaton has 2861 states and 7516 transitions. Word has length 113 [2021-03-10 17:58:12,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:12,583 INFO L480 AbstractCegarLoop]: Abstraction has 2861 states and 7516 transitions. [2021-03-10 17:58:12,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 2861 states and 7516 transitions. [2021-03-10 17:58:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:12,586 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:12,586 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:12,586 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-10 17:58:12,586 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:12,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:12,586 INFO L82 PathProgramCache]: Analyzing trace with hash -1535439622, now seen corresponding path program 71 times [2021-03-10 17:58:12,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:12,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758223703] [2021-03-10 17:58:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:13,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758223703] [2021-03-10 17:58:13,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:13,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:13,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186272059] [2021-03-10 17:58:13,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:13,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:13,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:13,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:13,662 INFO L87 Difference]: Start difference. First operand 2861 states and 7516 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:14,859 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 55 [2021-03-10 17:58:15,057 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 59 [2021-03-10 17:58:15,559 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-03-10 17:58:15,793 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:58:15,934 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:58:16,392 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:58:16,550 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:58:17,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:17,972 INFO L93 Difference]: Finished difference Result 3642 states and 9372 transitions. [2021-03-10 17:58:17,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:58:17,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:17,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:17,975 INFO L225 Difference]: With dead ends: 3642 [2021-03-10 17:58:17,975 INFO L226 Difference]: Without dead ends: 3373 [2021-03-10 17:58:17,976 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 3811.7ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:58:17,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2021-03-10 17:58:18,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 2795. [2021-03-10 17:58:18,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 2794 states have (on average 2.6360057265569075) internal successors, (7365), 2794 states have internal predecessors, (7365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 7365 transitions. [2021-03-10 17:58:18,009 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 7365 transitions. Word has length 113 [2021-03-10 17:58:18,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:18,009 INFO L480 AbstractCegarLoop]: Abstraction has 2795 states and 7365 transitions. [2021-03-10 17:58:18,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:18,009 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 7365 transitions. [2021-03-10 17:58:18,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:18,011 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:18,011 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:18,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-10 17:58:18,012 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:18,012 INFO L82 PathProgramCache]: Analyzing trace with hash -80763794, now seen corresponding path program 72 times [2021-03-10 17:58:18,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:18,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416490572] [2021-03-10 17:58:18,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:19,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:19,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416490572] [2021-03-10 17:58:19,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:19,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:19,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237870078] [2021-03-10 17:58:19,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:19,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:19,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:19,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:19,115 INFO L87 Difference]: Start difference. First operand 2795 states and 7365 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:20,323 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:58:20,512 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:21,060 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-10 17:58:21,280 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-03-10 17:58:21,581 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-10 17:58:22,111 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:58:23,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:23,845 INFO L93 Difference]: Finished difference Result 3479 states and 8963 transitions. [2021-03-10 17:58:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:58:23,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:23,849 INFO L225 Difference]: With dead ends: 3479 [2021-03-10 17:58:23,849 INFO L226 Difference]: Without dead ends: 3288 [2021-03-10 17:58:23,849 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 3906.5ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:58:23,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-03-10 17:58:23,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 2835. [2021-03-10 17:58:23,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2835 states, 2834 states have (on average 2.6312632321806633) internal successors, (7457), 2834 states have internal predecessors, (7457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:23,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2835 states to 2835 states and 7457 transitions. [2021-03-10 17:58:23,884 INFO L78 Accepts]: Start accepts. Automaton has 2835 states and 7457 transitions. Word has length 113 [2021-03-10 17:58:23,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:23,885 INFO L480 AbstractCegarLoop]: Abstraction has 2835 states and 7457 transitions. [2021-03-10 17:58:23,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:23,885 INFO L276 IsEmpty]: Start isEmpty. Operand 2835 states and 7457 transitions. [2021-03-10 17:58:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:23,887 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:23,887 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:23,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-10 17:58:23,887 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:23,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:23,888 INFO L82 PathProgramCache]: Analyzing trace with hash 597046202, now seen corresponding path program 73 times [2021-03-10 17:58:23,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:23,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431786697] [2021-03-10 17:58:23,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:24,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431786697] [2021-03-10 17:58:24,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:24,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:58:24,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134544431] [2021-03-10 17:58:24,256 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:58:24,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:24,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:58:24,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:58:24,257 INFO L87 Difference]: Start difference. First operand 2835 states and 7457 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:25,006 INFO L93 Difference]: Finished difference Result 5083 states and 12903 transitions. [2021-03-10 17:58:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:58:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:25,012 INFO L225 Difference]: With dead ends: 5083 [2021-03-10 17:58:25,012 INFO L226 Difference]: Without dead ends: 5013 [2021-03-10 17:58:25,012 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 616.4ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:58:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5013 states. [2021-03-10 17:58:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5013 to 2610. [2021-03-10 17:58:25,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2609 states have (on average 2.608279034112687) internal successors, (6805), 2609 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 6805 transitions. [2021-03-10 17:58:25,052 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 6805 transitions. Word has length 113 [2021-03-10 17:58:25,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:25,052 INFO L480 AbstractCegarLoop]: Abstraction has 2610 states and 6805 transitions. [2021-03-10 17:58:25,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:25,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 6805 transitions. [2021-03-10 17:58:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:25,054 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:25,054 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:25,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-10 17:58:25,055 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:25,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:25,055 INFO L82 PathProgramCache]: Analyzing trace with hash 159675992, now seen corresponding path program 74 times [2021-03-10 17:58:25,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:25,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057824534] [2021-03-10 17:58:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:26,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:26,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057824534] [2021-03-10 17:58:26,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:26,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:26,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21275548] [2021-03-10 17:58:26,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:26,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:26,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:26,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:26,119 INFO L87 Difference]: Start difference. First operand 2610 states and 6805 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:27,318 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:27,514 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:58:27,836 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:58:28,595 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 17:58:28,984 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-03-10 17:58:29,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:29,886 INFO L93 Difference]: Finished difference Result 3232 states and 8359 transitions. [2021-03-10 17:58:29,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:58:29,887 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:29,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:29,890 INFO L225 Difference]: With dead ends: 3232 [2021-03-10 17:58:29,891 INFO L226 Difference]: Without dead ends: 3087 [2021-03-10 17:58:29,891 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3327.3ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:58:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2021-03-10 17:58:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 2742. [2021-03-10 17:58:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2741 states have (on average 2.6059832178037214) internal successors, (7143), 2741 states have internal predecessors, (7143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:29,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 7143 transitions. [2021-03-10 17:58:29,925 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 7143 transitions. Word has length 113 [2021-03-10 17:58:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:29,925 INFO L480 AbstractCegarLoop]: Abstraction has 2742 states and 7143 transitions. [2021-03-10 17:58:29,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 7143 transitions. [2021-03-10 17:58:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:29,928 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:29,928 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:29,928 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-10 17:58:29,928 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:29,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:29,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1094673778, now seen corresponding path program 75 times [2021-03-10 17:58:29,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:29,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923732740] [2021-03-10 17:58:29,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:31,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923732740] [2021-03-10 17:58:31,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:31,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:31,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756597588] [2021-03-10 17:58:31,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:31,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:31,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:31,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:31,021 INFO L87 Difference]: Start difference. First operand 2742 states and 7143 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:32,113 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:58:32,282 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:32,489 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:58:32,875 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:58:34,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:34,780 INFO L93 Difference]: Finished difference Result 3394 states and 8736 transitions. [2021-03-10 17:58:34,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:58:34,781 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:34,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:34,784 INFO L225 Difference]: With dead ends: 3394 [2021-03-10 17:58:34,784 INFO L226 Difference]: Without dead ends: 3143 [2021-03-10 17:58:34,785 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 3311.4ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:58:34,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2021-03-10 17:58:34,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 2775. [2021-03-10 17:58:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2774 states have (on average 2.594808940158616) internal successors, (7198), 2774 states have internal predecessors, (7198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:34,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 7198 transitions. [2021-03-10 17:58:34,818 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 7198 transitions. Word has length 113 [2021-03-10 17:58:34,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:34,818 INFO L480 AbstractCegarLoop]: Abstraction has 2775 states and 7198 transitions. [2021-03-10 17:58:34,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:34,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 7198 transitions. [2021-03-10 17:58:34,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:34,821 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:34,821 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:34,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-10 17:58:34,821 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:34,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash -1267275748, now seen corresponding path program 76 times [2021-03-10 17:58:34,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:34,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035879770] [2021-03-10 17:58:34,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:35,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035879770] [2021-03-10 17:58:35,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:35,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:35,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328868971] [2021-03-10 17:58:35,849 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:35,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:35,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:35,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:35,850 INFO L87 Difference]: Start difference. First operand 2775 states and 7198 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:37,086 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:37,282 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:58:37,624 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:58:37,780 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 17:58:38,273 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 17:58:38,605 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:58:39,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:39,839 INFO L93 Difference]: Finished difference Result 3240 states and 8319 transitions. [2021-03-10 17:58:39,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:58:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:39,843 INFO L225 Difference]: With dead ends: 3240 [2021-03-10 17:58:39,843 INFO L226 Difference]: Without dead ends: 2956 [2021-03-10 17:58:39,843 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 3417.1ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:58:39,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-03-10 17:58:39,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2588. [2021-03-10 17:58:39,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2587 states have (on average 2.60919984538075) internal successors, (6750), 2587 states have internal predecessors, (6750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 6750 transitions. [2021-03-10 17:58:39,875 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 6750 transitions. Word has length 113 [2021-03-10 17:58:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:39,875 INFO L480 AbstractCegarLoop]: Abstraction has 2588 states and 6750 transitions. [2021-03-10 17:58:39,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 6750 transitions. [2021-03-10 17:58:39,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:39,879 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:39,879 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:39,879 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-10 17:58:39,879 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:39,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:39,879 INFO L82 PathProgramCache]: Analyzing trace with hash -759094972, now seen corresponding path program 77 times [2021-03-10 17:58:39,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:39,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827717855] [2021-03-10 17:58:39,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:40,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:40,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827717855] [2021-03-10 17:58:40,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:40,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:40,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953687816] [2021-03-10 17:58:40,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:40,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:40,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:40,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:40,987 INFO L87 Difference]: Start difference. First operand 2588 states and 6750 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:42,104 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:58:42,278 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:42,478 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:58:42,824 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-03-10 17:58:43,223 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-10 17:58:43,367 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:58:43,842 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:58:44,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:44,642 INFO L93 Difference]: Finished difference Result 2999 states and 7761 transitions. [2021-03-10 17:58:44,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:58:44,642 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:44,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:44,645 INFO L225 Difference]: With dead ends: 2999 [2021-03-10 17:58:44,645 INFO L226 Difference]: Without dead ends: 2841 [2021-03-10 17:58:44,646 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3365.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:58:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2021-03-10 17:58:44,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2577. [2021-03-10 17:58:44,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2577 states, 2576 states have (on average 2.611801242236025) internal successors, (6728), 2576 states have internal predecessors, (6728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:44,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2577 states to 2577 states and 6728 transitions. [2021-03-10 17:58:44,677 INFO L78 Accepts]: Start accepts. Automaton has 2577 states and 6728 transitions. Word has length 113 [2021-03-10 17:58:44,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:44,677 INFO L480 AbstractCegarLoop]: Abstraction has 2577 states and 6728 transitions. [2021-03-10 17:58:44,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:44,677 INFO L276 IsEmpty]: Start isEmpty. Operand 2577 states and 6728 transitions. [2021-03-10 17:58:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:44,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:44,679 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:44,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-10 17:58:44,680 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:44,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:44,680 INFO L82 PathProgramCache]: Analyzing trace with hash 743905842, now seen corresponding path program 78 times [2021-03-10 17:58:44,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:44,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479542579] [2021-03-10 17:58:44,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:45,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479542579] [2021-03-10 17:58:45,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:45,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:45,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795216453] [2021-03-10 17:58:45,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:45,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:45,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:45,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:45,726 INFO L87 Difference]: Start difference. First operand 2577 states and 6728 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:46,899 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:58:47,095 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-03-10 17:58:47,313 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2021-03-10 17:58:47,832 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-03-10 17:58:48,105 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-10 17:58:48,256 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:58:48,616 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:58:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:49,467 INFO L93 Difference]: Finished difference Result 2992 states and 7745 transitions. [2021-03-10 17:58:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:58:49,468 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:49,471 INFO L225 Difference]: With dead ends: 2992 [2021-03-10 17:58:49,471 INFO L226 Difference]: Without dead ends: 2782 [2021-03-10 17:58:49,471 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3334.7ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:58:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2021-03-10 17:58:49,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2520. [2021-03-10 17:58:49,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 2519 states have (on average 2.626439063120286) internal successors, (6616), 2519 states have internal predecessors, (6616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:49,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 6616 transitions. [2021-03-10 17:58:49,502 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 6616 transitions. Word has length 113 [2021-03-10 17:58:49,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:49,502 INFO L480 AbstractCegarLoop]: Abstraction has 2520 states and 6616 transitions. [2021-03-10 17:58:49,502 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 6616 transitions. [2021-03-10 17:58:49,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:49,504 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:49,504 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:49,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-10 17:58:49,505 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:49,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:49,505 INFO L82 PathProgramCache]: Analyzing trace with hash -6334088, now seen corresponding path program 79 times [2021-03-10 17:58:49,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:49,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348065215] [2021-03-10 17:58:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:50,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:50,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348065215] [2021-03-10 17:58:50,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:50,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:50,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136936820] [2021-03-10 17:58:50,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:50,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:50,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:50,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:50,774 INFO L87 Difference]: Start difference. First operand 2520 states and 6616 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:51,855 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 17:58:52,244 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 17:58:52,398 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:58:52,654 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 17:58:53,089 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 17:58:53,257 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 17:58:53,691 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 17:58:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:54,863 INFO L93 Difference]: Finished difference Result 3147 states and 8021 transitions. [2021-03-10 17:58:54,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 17:58:54,863 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:54,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:54,866 INFO L225 Difference]: With dead ends: 3147 [2021-03-10 17:58:54,866 INFO L226 Difference]: Without dead ends: 2987 [2021-03-10 17:58:54,867 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 3787.4ms TimeCoverageRelationStatistics Valid=542, Invalid=2650, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 17:58:54,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2021-03-10 17:58:54,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2532. [2021-03-10 17:58:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2531 states have (on average 2.6250493875938363) internal successors, (6644), 2531 states have internal predecessors, (6644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:54,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 6644 transitions. [2021-03-10 17:58:54,898 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 6644 transitions. Word has length 113 [2021-03-10 17:58:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:54,898 INFO L480 AbstractCegarLoop]: Abstraction has 2532 states and 6644 transitions. [2021-03-10 17:58:54,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:54,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 6644 transitions. [2021-03-10 17:58:54,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:54,900 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:54,900 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:54,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-10 17:58:54,900 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:54,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:54,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1110769746, now seen corresponding path program 80 times [2021-03-10 17:58:54,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:54,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142575262] [2021-03-10 17:58:54,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:58:56,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:58:56,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142575262] [2021-03-10 17:58:56,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:58:56,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:58:56,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486906975] [2021-03-10 17:58:56,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:58:56,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:58:56,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:58:56,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:58:56,050 INFO L87 Difference]: Start difference. First operand 2532 states and 6644 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:57,210 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 17:58:57,633 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 17:58:57,801 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:58:58,059 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 17:58:58,279 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 17:58:58,457 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:58:58,701 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 17:58:59,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:58:59,817 INFO L93 Difference]: Finished difference Result 2949 states and 7632 transitions. [2021-03-10 17:58:59,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:58:59,818 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:58:59,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:58:59,821 INFO L225 Difference]: With dead ends: 2949 [2021-03-10 17:58:59,821 INFO L226 Difference]: Without dead ends: 2800 [2021-03-10 17:58:59,822 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3500.3ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 17:58:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2800 states. [2021-03-10 17:58:59,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2800 to 2530. [2021-03-10 17:58:59,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2529 states have (on average 2.6251482799525503) internal successors, (6639), 2529 states have internal predecessors, (6639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 6639 transitions. [2021-03-10 17:58:59,852 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 6639 transitions. Word has length 113 [2021-03-10 17:58:59,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:58:59,852 INFO L480 AbstractCegarLoop]: Abstraction has 2530 states and 6639 transitions. [2021-03-10 17:58:59,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:58:59,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 6639 transitions. [2021-03-10 17:58:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:58:59,855 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:58:59,855 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:58:59,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-10 17:58:59,855 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:58:59,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:58:59,855 INFO L82 PathProgramCache]: Analyzing trace with hash -767005484, now seen corresponding path program 81 times [2021-03-10 17:58:59,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:58:59,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803240829] [2021-03-10 17:58:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:58:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:01,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803240829] [2021-03-10 17:59:01,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:01,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:01,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310447018] [2021-03-10 17:59:01,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:01,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:01,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:01,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:01,043 INFO L87 Difference]: Start difference. First operand 2530 states and 6639 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:02,183 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 17:59:02,590 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 17:59:02,746 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 17:59:02,974 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-03-10 17:59:03,282 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 17:59:03,761 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:59:04,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:04,587 INFO L93 Difference]: Finished difference Result 2903 states and 7526 transitions. [2021-03-10 17:59:04,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:59:04,588 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:04,591 INFO L225 Difference]: With dead ends: 2903 [2021-03-10 17:59:04,591 INFO L226 Difference]: Without dead ends: 2744 [2021-03-10 17:59:04,591 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3334.6ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:59:04,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2021-03-10 17:59:04,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2526. [2021-03-10 17:59:04,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 2525 states have (on average 2.6245544554455447) internal successors, (6627), 2525 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 6627 transitions. [2021-03-10 17:59:04,621 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 6627 transitions. Word has length 113 [2021-03-10 17:59:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:04,621 INFO L480 AbstractCegarLoop]: Abstraction has 2526 states and 6627 transitions. [2021-03-10 17:59:04,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 6627 transitions. [2021-03-10 17:59:04,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:04,623 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:04,623 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:04,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-10 17:59:04,623 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:04,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:04,624 INFO L82 PathProgramCache]: Analyzing trace with hash -747558002, now seen corresponding path program 82 times [2021-03-10 17:59:04,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:04,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189199520] [2021-03-10 17:59:04,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:05,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189199520] [2021-03-10 17:59:05,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:05,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:05,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248844965] [2021-03-10 17:59:05,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:05,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:05,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:05,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:05,727 INFO L87 Difference]: Start difference. First operand 2526 states and 6627 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:06,746 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 17:59:07,035 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:07,563 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 17:59:07,746 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-10 17:59:07,985 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-03-10 17:59:08,356 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-10 17:59:08,519 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:59:08,921 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:59:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:09,901 INFO L93 Difference]: Finished difference Result 2889 states and 7497 transitions. [2021-03-10 17:59:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:59:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:09,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:09,905 INFO L225 Difference]: With dead ends: 2889 [2021-03-10 17:59:09,905 INFO L226 Difference]: Without dead ends: 2732 [2021-03-10 17:59:09,905 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3521.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:59:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2021-03-10 17:59:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2522. [2021-03-10 17:59:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2522 states, 2521 states have (on average 2.6255454184847284) internal successors, (6619), 2521 states have internal predecessors, (6619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:09,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2522 states to 2522 states and 6619 transitions. [2021-03-10 17:59:09,935 INFO L78 Accepts]: Start accepts. Automaton has 2522 states and 6619 transitions. Word has length 113 [2021-03-10 17:59:09,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:09,936 INFO L480 AbstractCegarLoop]: Abstraction has 2522 states and 6619 transitions. [2021-03-10 17:59:09,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:09,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2522 states and 6619 transitions. [2021-03-10 17:59:09,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:09,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:09,938 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:09,939 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-10 17:59:09,939 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:09,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:09,939 INFO L82 PathProgramCache]: Analyzing trace with hash -882441864, now seen corresponding path program 83 times [2021-03-10 17:59:09,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:09,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454586080] [2021-03-10 17:59:09,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:11,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454586080] [2021-03-10 17:59:11,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:11,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:11,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418454236] [2021-03-10 17:59:11,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:11,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:11,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:11,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:11,101 INFO L87 Difference]: Start difference. First operand 2522 states and 6619 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:12,330 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:12,776 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 17:59:12,949 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 17:59:13,221 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 17:59:13,696 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-10 17:59:13,859 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:59:14,345 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-03-10 17:59:14,552 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 17:59:14,727 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-03-10 17:59:15,043 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 17:59:16,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:16,328 INFO L93 Difference]: Finished difference Result 3175 states and 8100 transitions. [2021-03-10 17:59:16,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:59:16,329 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:16,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:16,332 INFO L225 Difference]: With dead ends: 3175 [2021-03-10 17:59:16,332 INFO L226 Difference]: Without dead ends: 2969 [2021-03-10 17:59:16,333 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 4483.0ms TimeCoverageRelationStatistics Valid=617, Invalid=2923, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:59:16,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2021-03-10 17:59:16,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 2532. [2021-03-10 17:59:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2532 states, 2531 states have (on average 2.624259186092454) internal successors, (6642), 2531 states have internal predecessors, (6642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:16,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2532 states to 2532 states and 6642 transitions. [2021-03-10 17:59:16,365 INFO L78 Accepts]: Start accepts. Automaton has 2532 states and 6642 transitions. Word has length 113 [2021-03-10 17:59:16,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:16,365 INFO L480 AbstractCegarLoop]: Abstraction has 2532 states and 6642 transitions. [2021-03-10 17:59:16,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:16,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2532 states and 6642 transitions. [2021-03-10 17:59:16,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:16,368 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:16,368 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:16,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-10 17:59:16,369 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:16,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:16,369 INFO L82 PathProgramCache]: Analyzing trace with hash -824360252, now seen corresponding path program 84 times [2021-03-10 17:59:16,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:16,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218414920] [2021-03-10 17:59:16,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:16,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:17,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218414920] [2021-03-10 17:59:17,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:17,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:17,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453925237] [2021-03-10 17:59:17,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:17,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:17,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:17,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:17,592 INFO L87 Difference]: Start difference. First operand 2532 states and 6642 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:18,797 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:19,309 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 17:59:19,494 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 17:59:19,789 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 17:59:20,032 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-10 17:59:20,228 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 17:59:20,824 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-10 17:59:21,119 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:59:21,291 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 17:59:21,576 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-03-10 17:59:22,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:22,944 INFO L93 Difference]: Finished difference Result 3150 states and 8049 transitions. [2021-03-10 17:59:22,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-03-10 17:59:22,945 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:22,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:22,948 INFO L225 Difference]: With dead ends: 3150 [2021-03-10 17:59:22,948 INFO L226 Difference]: Without dead ends: 2959 [2021-03-10 17:59:22,948 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 638 ImplicationChecksByTransitivity, 4522.7ms TimeCoverageRelationStatistics Valid=631, Invalid=2909, Unknown=0, NotChecked=0, Total=3540 [2021-03-10 17:59:22,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2021-03-10 17:59:22,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2540. [2021-03-10 17:59:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2540 states, 2539 states have (on average 2.620716817644742) internal successors, (6654), 2539 states have internal predecessors, (6654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:22,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2540 states to 2540 states and 6654 transitions. [2021-03-10 17:59:22,980 INFO L78 Accepts]: Start accepts. Automaton has 2540 states and 6654 transitions. Word has length 113 [2021-03-10 17:59:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:22,980 INFO L480 AbstractCegarLoop]: Abstraction has 2540 states and 6654 transitions. [2021-03-10 17:59:22,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:22,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2540 states and 6654 transitions. [2021-03-10 17:59:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:22,982 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:22,983 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:22,983 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-10 17:59:22,983 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:22,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:22,983 INFO L82 PathProgramCache]: Analyzing trace with hash -146550256, now seen corresponding path program 85 times [2021-03-10 17:59:22,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:22,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727547358] [2021-03-10 17:59:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:23,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727547358] [2021-03-10 17:59:23,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:23,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:59:23,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037226445] [2021-03-10 17:59:23,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:59:23,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:23,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:59:23,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:59:23,383 INFO L87 Difference]: Start difference. First operand 2540 states and 6654 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:24,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:24,302 INFO L93 Difference]: Finished difference Result 4440 states and 11608 transitions. [2021-03-10 17:59:24,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:59:24,303 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:24,308 INFO L225 Difference]: With dead ends: 4440 [2021-03-10 17:59:24,308 INFO L226 Difference]: Without dead ends: 4436 [2021-03-10 17:59:24,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 776.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:59:24,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4436 states. [2021-03-10 17:59:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4436 to 2687. [2021-03-10 17:59:24,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2686 states have (on average 2.6191362620997767) internal successors, (7035), 2686 states have internal predecessors, (7035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 7035 transitions. [2021-03-10 17:59:24,349 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 7035 transitions. Word has length 113 [2021-03-10 17:59:24,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:24,349 INFO L480 AbstractCegarLoop]: Abstraction has 2687 states and 7035 transitions. [2021-03-10 17:59:24,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 7035 transitions. [2021-03-10 17:59:24,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:24,351 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:24,351 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:24,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-10 17:59:24,352 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:24,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:24,352 INFO L82 PathProgramCache]: Analyzing trace with hash -840824494, now seen corresponding path program 86 times [2021-03-10 17:59:24,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:24,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123194365] [2021-03-10 17:59:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:24,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:25,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123194365] [2021-03-10 17:59:25,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:25,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:25,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548030710] [2021-03-10 17:59:25,686 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:25,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:25,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:25,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:25,686 INFO L87 Difference]: Start difference. First operand 2687 states and 7035 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:26,819 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:27,266 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 17:59:27,451 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 17:59:27,690 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-03-10 17:59:28,014 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-10 17:59:28,173 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:59:28,584 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2021-03-10 17:59:28,842 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:59:30,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:30,513 INFO L93 Difference]: Finished difference Result 3248 states and 8276 transitions. [2021-03-10 17:59:30,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-03-10 17:59:30,515 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:30,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:30,518 INFO L225 Difference]: With dead ends: 3248 [2021-03-10 17:59:30,518 INFO L226 Difference]: Without dead ends: 3039 [2021-03-10 17:59:30,519 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 4392.0ms TimeCoverageRelationStatistics Valid=604, Invalid=2818, Unknown=0, NotChecked=0, Total=3422 [2021-03-10 17:59:30,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2021-03-10 17:59:30,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 2721. [2021-03-10 17:59:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 2.614705882352941) internal successors, (7112), 2720 states have internal predecessors, (7112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 7112 transitions. [2021-03-10 17:59:30,554 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 7112 transitions. Word has length 113 [2021-03-10 17:59:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:30,554 INFO L480 AbstractCegarLoop]: Abstraction has 2721 states and 7112 transitions. [2021-03-10 17:59:30,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 7112 transitions. [2021-03-10 17:59:30,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:30,557 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:30,557 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:30,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-10 17:59:30,557 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:30,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:30,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1171717932, now seen corresponding path program 87 times [2021-03-10 17:59:30,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:30,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138704748] [2021-03-10 17:59:30,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:30,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:30,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138704748] [2021-03-10 17:59:31,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:31,000 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:59:31,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860893257] [2021-03-10 17:59:31,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:59:31,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:31,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:59:31,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:59:31,000 INFO L87 Difference]: Start difference. First operand 2721 states and 7112 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:32,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:32,011 INFO L93 Difference]: Finished difference Result 3934 states and 9845 transitions. [2021-03-10 17:59:32,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:59:32,013 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:32,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:32,017 INFO L225 Difference]: With dead ends: 3934 [2021-03-10 17:59:32,017 INFO L226 Difference]: Without dead ends: 3926 [2021-03-10 17:59:32,017 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 819.6ms TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2021-03-10 17:59:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2021-03-10 17:59:32,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 2760. [2021-03-10 17:59:32,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 2759 states have (on average 2.6052917723812974) internal successors, (7188), 2759 states have internal predecessors, (7188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:32,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 7188 transitions. [2021-03-10 17:59:32,055 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 7188 transitions. Word has length 113 [2021-03-10 17:59:32,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:32,055 INFO L480 AbstractCegarLoop]: Abstraction has 2760 states and 7188 transitions. [2021-03-10 17:59:32,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:32,056 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 7188 transitions. [2021-03-10 17:59:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:32,058 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:32,058 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:32,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-10 17:59:32,058 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:32,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:32,059 INFO L82 PathProgramCache]: Analyzing trace with hash -455126512, now seen corresponding path program 88 times [2021-03-10 17:59:32,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:32,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943804153] [2021-03-10 17:59:32,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:33,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943804153] [2021-03-10 17:59:33,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:33,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:33,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957288378] [2021-03-10 17:59:33,275 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:33,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:33,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:33,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:33,275 INFO L87 Difference]: Start difference. First operand 2760 states and 7188 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:34,506 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 17:59:35,016 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 17:59:35,203 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2021-03-10 17:59:35,422 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2021-03-10 17:59:35,737 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-03-10 17:59:35,891 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 17:59:36,257 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 17:59:37,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:37,279 INFO L93 Difference]: Finished difference Result 2929 states and 7499 transitions. [2021-03-10 17:59:37,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 17:59:37,280 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:37,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:37,282 INFO L225 Difference]: With dead ends: 2929 [2021-03-10 17:59:37,282 INFO L226 Difference]: Without dead ends: 2770 [2021-03-10 17:59:37,283 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3556.4ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 17:59:37,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-03-10 17:59:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2754. [2021-03-10 17:59:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2753 states have (on average 2.607337450054486) internal successors, (7178), 2753 states have internal predecessors, (7178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 7178 transitions. [2021-03-10 17:59:37,313 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 7178 transitions. Word has length 113 [2021-03-10 17:59:37,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:37,313 INFO L480 AbstractCegarLoop]: Abstraction has 2754 states and 7178 transitions. [2021-03-10 17:59:37,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:37,313 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 7178 transitions. [2021-03-10 17:59:37,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:37,315 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:37,316 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:37,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-10 17:59:37,316 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:37,316 INFO L82 PathProgramCache]: Analyzing trace with hash -2018743090, now seen corresponding path program 89 times [2021-03-10 17:59:37,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:37,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754540145] [2021-03-10 17:59:37,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:38,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754540145] [2021-03-10 17:59:38,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:38,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:38,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267780549] [2021-03-10 17:59:38,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:38,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:38,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:38,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:38,499 INFO L87 Difference]: Start difference. First operand 2754 states and 7178 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:39,693 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:39,881 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 17:59:40,197 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 17:59:40,401 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 17:59:41,010 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-03-10 17:59:41,163 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2021-03-10 17:59:41,369 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2021-03-10 17:59:41,591 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2021-03-10 17:59:41,950 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2021-03-10 17:59:43,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:43,050 INFO L93 Difference]: Finished difference Result 3213 states and 8223 transitions. [2021-03-10 17:59:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:59:43,052 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:43,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:43,054 INFO L225 Difference]: With dead ends: 3213 [2021-03-10 17:59:43,054 INFO L226 Difference]: Without dead ends: 3053 [2021-03-10 17:59:43,055 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 3922.8ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:59:43,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2021-03-10 17:59:43,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2787. [2021-03-10 17:59:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.606245513280689) internal successors, (7261), 2786 states have internal predecessors, (7261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:43,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7261 transitions. [2021-03-10 17:59:43,087 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7261 transitions. Word has length 113 [2021-03-10 17:59:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:43,088 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 7261 transitions. [2021-03-10 17:59:43,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7261 transitions. [2021-03-10 17:59:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:43,090 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:43,090 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:43,090 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-10 17:59:43,090 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:43,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1515952942, now seen corresponding path program 90 times [2021-03-10 17:59:43,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:43,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624491319] [2021-03-10 17:59:43,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:44,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624491319] [2021-03-10 17:59:44,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:44,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:44,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203133566] [2021-03-10 17:59:44,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:44,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:44,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:44,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:44,519 INFO L87 Difference]: Start difference. First operand 2787 states and 7261 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:45,732 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:45,960 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 17:59:46,318 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 17:59:46,815 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 17:59:46,999 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 17:59:47,443 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-03-10 17:59:47,617 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-03-10 17:59:47,909 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-03-10 17:59:48,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:48,924 INFO L93 Difference]: Finished difference Result 3376 states and 8657 transitions. [2021-03-10 17:59:48,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 17:59:48,925 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:48,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:48,928 INFO L225 Difference]: With dead ends: 3376 [2021-03-10 17:59:48,928 INFO L226 Difference]: Without dead ends: 3231 [2021-03-10 17:59:48,929 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 4049.6ms TimeCoverageRelationStatistics Valid=467, Invalid=2395, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 17:59:48,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3231 states. [2021-03-10 17:59:48,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3231 to 2941. [2021-03-10 17:59:48,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2941 states, 2940 states have (on average 2.599659863945578) internal successors, (7643), 2940 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2941 states to 2941 states and 7643 transitions. [2021-03-10 17:59:48,964 INFO L78 Accepts]: Start accepts. Automaton has 2941 states and 7643 transitions. Word has length 113 [2021-03-10 17:59:48,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:48,964 INFO L480 AbstractCegarLoop]: Abstraction has 2941 states and 7643 transitions. [2021-03-10 17:59:48,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:48,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2941 states and 7643 transitions. [2021-03-10 17:59:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:48,967 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:48,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:48,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-10 17:59:48,967 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:48,968 INFO L82 PathProgramCache]: Analyzing trace with hash 261603172, now seen corresponding path program 91 times [2021-03-10 17:59:48,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:48,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758177301] [2021-03-10 17:59:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:50,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:50,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758177301] [2021-03-10 17:59:50,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:50,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:50,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616068188] [2021-03-10 17:59:50,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:50,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:50,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:50,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:50,180 INFO L87 Difference]: Start difference. First operand 2941 states and 7643 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:51,377 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:51,568 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 17:59:51,873 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 17:59:52,081 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 17:59:52,410 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 17:59:52,609 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 17:59:52,965 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-03-10 17:59:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:59:54,584 INFO L93 Difference]: Finished difference Result 3538 states and 9034 transitions. [2021-03-10 17:59:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 17:59:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 17:59:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:59:54,588 INFO L225 Difference]: With dead ends: 3538 [2021-03-10 17:59:54,588 INFO L226 Difference]: Without dead ends: 3287 [2021-03-10 17:59:54,589 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 477 ImplicationChecksByTransitivity, 3920.3ms TimeCoverageRelationStatistics Valid=494, Invalid=2476, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 17:59:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2021-03-10 17:59:54,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 2974. [2021-03-10 17:59:54,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2974 states, 2973 states have (on average 2.5893037336024216) internal successors, (7698), 2973 states have internal predecessors, (7698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2974 states to 2974 states and 7698 transitions. [2021-03-10 17:59:54,623 INFO L78 Accepts]: Start accepts. Automaton has 2974 states and 7698 transitions. Word has length 113 [2021-03-10 17:59:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:59:54,624 INFO L480 AbstractCegarLoop]: Abstraction has 2974 states and 7698 transitions. [2021-03-10 17:59:54,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2974 states and 7698 transitions. [2021-03-10 17:59:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 17:59:54,626 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:59:54,626 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:59:54,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-10 17:59:54,627 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:59:54,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:59:54,627 INFO L82 PathProgramCache]: Analyzing trace with hash 89001202, now seen corresponding path program 92 times [2021-03-10 17:59:54,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:59:54,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394106712] [2021-03-10 17:59:54,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:59:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:59:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:59:55,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394106712] [2021-03-10 17:59:55,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:59:55,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 17:59:55,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281023137] [2021-03-10 17:59:55,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 17:59:55,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:59:55,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 17:59:55,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 17:59:55,888 INFO L87 Difference]: Start difference. First operand 2974 states and 7698 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:59:57,175 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 17:59:57,376 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 17:59:57,711 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 17:59:58,210 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 17:59:58,397 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 17:59:58,763 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-03-10 17:59:59,172 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-03-10 18:00:00,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:00,487 INFO L93 Difference]: Finished difference Result 3384 states and 8617 transitions. [2021-03-10 18:00:00,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 18:00:00,488 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:00,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:00,492 INFO L225 Difference]: With dead ends: 3384 [2021-03-10 18:00:00,492 INFO L226 Difference]: Without dead ends: 3045 [2021-03-10 18:00:00,493 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4048.5ms TimeCoverageRelationStatistics Valid=498, Invalid=2582, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 18:00:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3045 states. [2021-03-10 18:00:00,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3045 to 2732. [2021-03-10 18:00:00,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2731 states have (on average 2.600146466495789) internal successors, (7101), 2731 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 7101 transitions. [2021-03-10 18:00:00,528 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 7101 transitions. Word has length 113 [2021-03-10 18:00:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:00,528 INFO L480 AbstractCegarLoop]: Abstraction has 2732 states and 7101 transitions. [2021-03-10 18:00:00,528 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 7101 transitions. [2021-03-10 18:00:00,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:00,530 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:00,531 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:00,531 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-10 18:00:00,531 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:00,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:00,531 INFO L82 PathProgramCache]: Analyzing trace with hash -435871902, now seen corresponding path program 93 times [2021-03-10 18:00:00,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:00,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593781710] [2021-03-10 18:00:00,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:01,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:01,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593781710] [2021-03-10 18:00:01,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:01,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:01,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115435763] [2021-03-10 18:00:01,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:01,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:01,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:01,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:01,825 INFO L87 Difference]: Start difference. First operand 2732 states and 7101 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:03,137 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:03,365 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:03,774 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:04,405 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 18:00:04,567 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:00:04,729 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:04,920 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-10 18:00:05,259 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 18:00:05,582 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 18:00:06,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:06,650 INFO L93 Difference]: Finished difference Result 2957 states and 7533 transitions. [2021-03-10 18:00:06,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 18:00:06,651 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:06,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:06,654 INFO L225 Difference]: With dead ends: 2957 [2021-03-10 18:00:06,654 INFO L226 Difference]: Without dead ends: 2797 [2021-03-10 18:00:06,655 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 4247.1ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 18:00:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2021-03-10 18:00:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2734. [2021-03-10 18:00:06,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 2733 states have (on average 2.5993413830954997) internal successors, (7104), 2733 states have internal predecessors, (7104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:06,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 7104 transitions. [2021-03-10 18:00:06,689 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 7104 transitions. Word has length 113 [2021-03-10 18:00:06,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:06,689 INFO L480 AbstractCegarLoop]: Abstraction has 2734 states and 7104 transitions. [2021-03-10 18:00:06,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 7104 transitions. [2021-03-10 18:00:06,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:06,692 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:06,692 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:06,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-10 18:00:06,692 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:06,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:06,692 INFO L82 PathProgramCache]: Analyzing trace with hash -377790290, now seen corresponding path program 94 times [2021-03-10 18:00:06,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:06,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322170435] [2021-03-10 18:00:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:07,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:07,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322170435] [2021-03-10 18:00:07,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:07,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:07,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709660678] [2021-03-10 18:00:07,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:07,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:07,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:07,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:07,991 INFO L87 Difference]: Start difference. First operand 2734 states and 7104 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:08,977 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:09,279 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:09,506 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:09,876 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:10,448 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 18:00:10,672 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-10 18:00:10,881 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:00:11,181 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:11,436 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:00:12,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:12,600 INFO L93 Difference]: Finished difference Result 2885 states and 7380 transitions. [2021-03-10 18:00:12,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:00:12,602 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:12,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:12,605 INFO L225 Difference]: With dead ends: 2885 [2021-03-10 18:00:12,605 INFO L226 Difference]: Without dead ends: 2736 [2021-03-10 18:00:12,605 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 4126.6ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:00:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2021-03-10 18:00:12,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2732. [2021-03-10 18:00:12,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 2731 states have (on average 2.5997803002563162) internal successors, (7100), 2731 states have internal predecessors, (7100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 7100 transitions. [2021-03-10 18:00:12,639 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 7100 transitions. Word has length 113 [2021-03-10 18:00:12,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:12,639 INFO L480 AbstractCegarLoop]: Abstraction has 2732 states and 7100 transitions. [2021-03-10 18:00:12,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:12,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 7100 transitions. [2021-03-10 18:00:12,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:12,642 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:12,642 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:12,642 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-10 18:00:12,642 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:12,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:12,642 INFO L82 PathProgramCache]: Analyzing trace with hash -978484382, now seen corresponding path program 95 times [2021-03-10 18:00:12,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:12,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325321411] [2021-03-10 18:00:12,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:14,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:14,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325321411] [2021-03-10 18:00:14,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:14,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:14,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863725213] [2021-03-10 18:00:14,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:14,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:14,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:14,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:14,091 INFO L87 Difference]: Start difference. First operand 2732 states and 7100 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:15,193 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:15,478 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:15,688 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:16,062 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:16,327 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-10 18:00:16,519 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 18:00:17,245 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 18:00:17,401 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-03-10 18:00:17,569 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-03-10 18:00:17,834 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-03-10 18:00:18,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:18,868 INFO L93 Difference]: Finished difference Result 3129 states and 7988 transitions. [2021-03-10 18:00:18,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 18:00:18,870 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:18,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:18,873 INFO L225 Difference]: With dead ends: 3129 [2021-03-10 18:00:18,873 INFO L226 Difference]: Without dead ends: 2984 [2021-03-10 18:00:18,873 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 4373.2ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 18:00:18,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2021-03-10 18:00:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2897. [2021-03-10 18:00:18,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2896 states have (on average 2.591160220994475) internal successors, (7504), 2896 states have internal predecessors, (7504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:18,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 7504 transitions. [2021-03-10 18:00:18,908 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 7504 transitions. Word has length 113 [2021-03-10 18:00:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:18,908 INFO L480 AbstractCegarLoop]: Abstraction has 2897 states and 7504 transitions. [2021-03-10 18:00:18,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:18,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 7504 transitions. [2021-03-10 18:00:18,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:18,911 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:18,911 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:18,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-10 18:00:18,911 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:18,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:18,912 INFO L82 PathProgramCache]: Analyzing trace with hash 2062133144, now seen corresponding path program 96 times [2021-03-10 18:00:18,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:18,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305126570] [2021-03-10 18:00:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:20,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:20,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305126570] [2021-03-10 18:00:20,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:20,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:20,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276426614] [2021-03-10 18:00:20,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:20,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:20,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:20,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:20,248 INFO L87 Difference]: Start difference. First operand 2897 states and 7504 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:21,456 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:21,753 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:21,990 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:22,378 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:22,659 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-10 18:00:22,860 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 18:00:23,154 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:00:23,517 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:25,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:25,236 INFO L93 Difference]: Finished difference Result 3291 states and 8365 transitions. [2021-03-10 18:00:25,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 18:00:25,238 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:25,241 INFO L225 Difference]: With dead ends: 3291 [2021-03-10 18:00:25,241 INFO L226 Difference]: Without dead ends: 3040 [2021-03-10 18:00:25,242 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 4335.5ms TimeCoverageRelationStatistics Valid=521, Invalid=2559, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 18:00:25,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2021-03-10 18:00:25,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 2930. [2021-03-10 18:00:25,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2930 states, 2929 states have (on average 2.580744281324684) internal successors, (7559), 2929 states have internal predecessors, (7559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:25,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 7559 transitions. [2021-03-10 18:00:25,277 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 7559 transitions. Word has length 113 [2021-03-10 18:00:25,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:25,277 INFO L480 AbstractCegarLoop]: Abstraction has 2930 states and 7559 transitions. [2021-03-10 18:00:25,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:25,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 7559 transitions. [2021-03-10 18:00:25,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:25,280 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:25,280 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:25,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-10 18:00:25,280 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:25,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:25,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1889531174, now seen corresponding path program 97 times [2021-03-10 18:00:25,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:25,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140202676] [2021-03-10 18:00:25,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:26,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140202676] [2021-03-10 18:00:26,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:26,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:26,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487472597] [2021-03-10 18:00:26,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:26,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:26,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:26,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:26,654 INFO L87 Difference]: Start difference. First operand 2930 states and 7559 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:28,029 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:28,237 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:28,637 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:28,939 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-10 18:00:29,172 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2021-03-10 18:00:29,494 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:00:29,901 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:30,152 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2021-03-10 18:00:30,428 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:00:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:31,924 INFO L93 Difference]: Finished difference Result 3137 states and 7948 transitions. [2021-03-10 18:00:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 18:00:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:31,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:31,928 INFO L225 Difference]: With dead ends: 3137 [2021-03-10 18:00:31,928 INFO L226 Difference]: Without dead ends: 2853 [2021-03-10 18:00:31,929 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 4597.2ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 18:00:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2021-03-10 18:00:31,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2743. [2021-03-10 18:00:31,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2742 states have (on average 2.5933625091174326) internal successors, (7111), 2742 states have internal predecessors, (7111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:31,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 7111 transitions. [2021-03-10 18:00:31,964 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 7111 transitions. Word has length 113 [2021-03-10 18:00:31,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:31,964 INFO L480 AbstractCegarLoop]: Abstraction has 2743 states and 7111 transitions. [2021-03-10 18:00:31,964 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:31,964 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 7111 transitions. [2021-03-10 18:00:31,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:31,966 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:31,967 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:31,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-10 18:00:31,967 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:31,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:31,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1897255346, now seen corresponding path program 98 times [2021-03-10 18:00:31,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:31,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56540742] [2021-03-10 18:00:31,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:31,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:33,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56540742] [2021-03-10 18:00:33,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:33,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:33,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110825805] [2021-03-10 18:00:33,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:33,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:33,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:33,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:33,274 INFO L87 Difference]: Start difference. First operand 2743 states and 7111 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:34,322 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:34,636 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:34,881 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:35,302 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 61 [2021-03-10 18:00:35,581 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2021-03-10 18:00:36,171 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 68 [2021-03-10 18:00:36,385 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-03-10 18:00:36,707 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:36,975 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:00:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:38,124 INFO L93 Difference]: Finished difference Result 2894 states and 7387 transitions. [2021-03-10 18:00:38,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:00:38,126 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:38,129 INFO L225 Difference]: With dead ends: 2894 [2021-03-10 18:00:38,129 INFO L226 Difference]: Without dead ends: 2725 [2021-03-10 18:00:38,129 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 4203.7ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:00:38,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2725 states. [2021-03-10 18:00:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2725 to 2721. [2021-03-10 18:00:38,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 2.598529411764706) internal successors, (7068), 2720 states have internal predecessors, (7068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 7068 transitions. [2021-03-10 18:00:38,162 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 7068 transitions. Word has length 113 [2021-03-10 18:00:38,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:38,162 INFO L480 AbstractCegarLoop]: Abstraction has 2721 states and 7068 transitions. [2021-03-10 18:00:38,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 7068 transitions. [2021-03-10 18:00:38,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:38,165 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:38,165 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:38,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-10 18:00:38,165 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:38,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:38,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1087486924, now seen corresponding path program 99 times [2021-03-10 18:00:38,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:38,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445884252] [2021-03-10 18:00:38,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:39,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445884252] [2021-03-10 18:00:39,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:39,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:39,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140561097] [2021-03-10 18:00:39,633 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:39,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:39,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:39,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:39,633 INFO L87 Difference]: Start difference. First operand 2721 states and 7068 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:40,804 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:41,112 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:41,336 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:42,002 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-10 18:00:42,311 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-10 18:00:42,853 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-10 18:00:43,060 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 18:00:43,451 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 18:00:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:44,605 INFO L93 Difference]: Finished difference Result 2966 states and 7540 transitions. [2021-03-10 18:00:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:00:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:44,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:44,609 INFO L225 Difference]: With dead ends: 2966 [2021-03-10 18:00:44,609 INFO L226 Difference]: Without dead ends: 2806 [2021-03-10 18:00:44,609 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 4277.7ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:00:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2021-03-10 18:00:44,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2731. [2021-03-10 18:00:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2731 states, 2730 states have (on average 2.5974358974358975) internal successors, (7091), 2730 states have internal predecessors, (7091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2731 states to 2731 states and 7091 transitions. [2021-03-10 18:00:44,642 INFO L78 Accepts]: Start accepts. Automaton has 2731 states and 7091 transitions. Word has length 113 [2021-03-10 18:00:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:44,642 INFO L480 AbstractCegarLoop]: Abstraction has 2731 states and 7091 transitions. [2021-03-10 18:00:44,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 2731 states and 7091 transitions. [2021-03-10 18:00:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:44,644 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:44,644 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:44,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-10 18:00:44,645 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:44,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1029405312, now seen corresponding path program 100 times [2021-03-10 18:00:44,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:44,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099535156] [2021-03-10 18:00:44,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:44,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:46,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099535156] [2021-03-10 18:00:46,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:46,034 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:46,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312868825] [2021-03-10 18:00:46,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:46,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:46,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:46,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:46,035 INFO L87 Difference]: Start difference. First operand 2731 states and 7091 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:47,196 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:47,493 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:47,710 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:48,348 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-10 18:00:48,656 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 64 [2021-03-10 18:00:48,893 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-10 18:00:49,135 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:00:49,445 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:49,753 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:00:50,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:50,945 INFO L93 Difference]: Finished difference Result 2896 states and 7390 transitions. [2021-03-10 18:00:50,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:00:50,947 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:50,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:50,950 INFO L225 Difference]: With dead ends: 2896 [2021-03-10 18:00:50,950 INFO L226 Difference]: Without dead ends: 2747 [2021-03-10 18:00:50,951 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4343.8ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:00:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-03-10 18:00:50,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2729. [2021-03-10 18:00:50,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2729 states, 2728 states have (on average 2.5975073313782993) internal successors, (7086), 2728 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:50,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2729 states to 2729 states and 7086 transitions. [2021-03-10 18:00:50,983 INFO L78 Accepts]: Start accepts. Automaton has 2729 states and 7086 transitions. Word has length 113 [2021-03-10 18:00:50,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:50,984 INFO L480 AbstractCegarLoop]: Abstraction has 2729 states and 7086 transitions. [2021-03-10 18:00:50,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:50,984 INFO L276 IsEmpty]: Start isEmpty. Operand 2729 states and 7086 transitions. [2021-03-10 18:00:50,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:50,986 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:50,986 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:50,986 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-10 18:00:50,987 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:50,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:50,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1045869554, now seen corresponding path program 101 times [2021-03-10 18:00:50,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:50,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931947061] [2021-03-10 18:00:50,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:52,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931947061] [2021-03-10 18:00:52,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:52,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:52,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325271652] [2021-03-10 18:00:52,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:52,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:52,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:52,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:52,435 INFO L87 Difference]: Start difference. First operand 2729 states and 7086 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:53,492 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:00:53,787 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:00:54,010 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:00:54,617 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-03-10 18:00:54,894 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-03-10 18:00:55,285 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-10 18:00:55,483 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:00:55,675 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:00:55,950 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:00:56,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:00:57,000 INFO L93 Difference]: Finished difference Result 2906 states and 7405 transitions. [2021-03-10 18:00:57,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:00:57,001 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:00:57,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:00:57,003 INFO L225 Difference]: With dead ends: 2906 [2021-03-10 18:00:57,003 INFO L226 Difference]: Without dead ends: 2747 [2021-03-10 18:00:57,004 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4102.2ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:00:57,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2021-03-10 18:00:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2725. [2021-03-10 18:00:57,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2725 states, 2724 states have (on average 2.595814977973568) internal successors, (7071), 2724 states have internal predecessors, (7071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:57,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2725 states to 2725 states and 7071 transitions. [2021-03-10 18:00:57,030 INFO L78 Accepts]: Start accepts. Automaton has 2725 states and 7071 transitions. Word has length 113 [2021-03-10 18:00:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:00:57,030 INFO L480 AbstractCegarLoop]: Abstraction has 2725 states and 7071 transitions. [2021-03-10 18:00:57,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2725 states and 7071 transitions. [2021-03-10 18:00:57,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:00:57,033 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:00:57,033 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:00:57,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-10 18:00:57,033 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:00:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:00:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1488875884, now seen corresponding path program 102 times [2021-03-10 18:00:57,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:00:57,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243678709] [2021-03-10 18:00:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:00:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:00:58,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:00:58,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243678709] [2021-03-10 18:00:58,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:00:58,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:00:58,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537569724] [2021-03-10 18:00:58,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:00:58,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:00:58,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:00:58,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:00:58,563 INFO L87 Difference]: Start difference. First operand 2725 states and 7071 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:00:59,751 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:01:00,075 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:01:00,327 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:01:00,610 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 18:01:01,105 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-10 18:01:01,317 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 18:01:01,523 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:01:02,077 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2021-03-10 18:01:02,242 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2021-03-10 18:01:02,510 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-03-10 18:01:03,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:03,605 INFO L93 Difference]: Finished difference Result 3105 states and 7919 transitions. [2021-03-10 18:01:03,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:01:03,606 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:03,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:03,609 INFO L225 Difference]: With dead ends: 3105 [2021-03-10 18:01:03,609 INFO L226 Difference]: Without dead ends: 2960 [2021-03-10 18:01:03,610 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 4345.6ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:01:03,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-03-10 18:01:03,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2857. [2021-03-10 18:01:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2857 states, 2856 states have (on average 2.594187675070028) internal successors, (7409), 2856 states have internal predecessors, (7409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:03,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 7409 transitions. [2021-03-10 18:01:03,646 INFO L78 Accepts]: Start accepts. Automaton has 2857 states and 7409 transitions. Word has length 113 [2021-03-10 18:01:03,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:03,646 INFO L480 AbstractCegarLoop]: Abstraction has 2857 states and 7409 transitions. [2021-03-10 18:01:03,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:03,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2857 states and 7409 transitions. [2021-03-10 18:01:03,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:03,649 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:03,649 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:03,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-10 18:01:03,649 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1551741642, now seen corresponding path program 103 times [2021-03-10 18:01:03,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:03,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657898419] [2021-03-10 18:01:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:04,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:04,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657898419] [2021-03-10 18:01:04,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:04,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:04,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983951667] [2021-03-10 18:01:04,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:04,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:04,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:04,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:04,993 INFO L87 Difference]: Start difference. First operand 2857 states and 7409 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:06,122 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:01:06,459 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:01:06,704 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:01:06,995 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 18:01:07,497 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-10 18:01:07,714 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 18:01:07,928 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:01:08,326 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:10,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:10,097 INFO L93 Difference]: Finished difference Result 3267 states and 8296 transitions. [2021-03-10 18:01:10,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:01:10,099 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:10,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:10,102 INFO L225 Difference]: With dead ends: 3267 [2021-03-10 18:01:10,102 INFO L226 Difference]: Without dead ends: 3016 [2021-03-10 18:01:10,102 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4224.9ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:01:10,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2021-03-10 18:01:10,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2890. [2021-03-10 18:01:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2889 states have (on average 2.583592938733126) internal successors, (7464), 2889 states have internal predecessors, (7464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:10,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 7464 transitions. [2021-03-10 18:01:10,137 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 7464 transitions. Word has length 113 [2021-03-10 18:01:10,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:10,138 INFO L480 AbstractCegarLoop]: Abstraction has 2890 states and 7464 transitions. [2021-03-10 18:01:10,138 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:10,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 7464 transitions. [2021-03-10 18:01:10,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:10,140 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:10,140 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:10,141 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-10 18:01:10,141 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:10,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:10,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1379139672, now seen corresponding path program 104 times [2021-03-10 18:01:10,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:10,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193496367] [2021-03-10 18:01:10,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:11,547 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193496367] [2021-03-10 18:01:11,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:11,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:11,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054843561] [2021-03-10 18:01:11,548 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:11,548 INFO L87 Difference]: Start difference. First operand 2890 states and 7464 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:12,729 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:01:13,032 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:01:13,255 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:01:13,514 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 18:01:13,960 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-10 18:01:14,327 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:01:14,723 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:15,120 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:16,675 INFO L93 Difference]: Finished difference Result 3113 states and 7879 transitions. [2021-03-10 18:01:16,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 18:01:16,676 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:16,679 INFO L225 Difference]: With dead ends: 3113 [2021-03-10 18:01:16,679 INFO L226 Difference]: Without dead ends: 2829 [2021-03-10 18:01:16,680 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 4465.5ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 18:01:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2829 states. [2021-03-10 18:01:16,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2829 to 2703. [2021-03-10 18:01:16,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 2702 states have (on average 2.59659511472983) internal successors, (7016), 2702 states have internal predecessors, (7016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:16,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 7016 transitions. [2021-03-10 18:01:16,712 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 7016 transitions. Word has length 113 [2021-03-10 18:01:16,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:16,712 INFO L480 AbstractCegarLoop]: Abstraction has 2703 states and 7016 transitions. [2021-03-10 18:01:16,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:16,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 7016 transitions. [2021-03-10 18:01:16,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:16,715 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:16,715 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:16,715 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-10 18:01:16,715 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:16,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:16,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1887320448, now seen corresponding path program 105 times [2021-03-10 18:01:16,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:16,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212249555] [2021-03-10 18:01:16,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:18,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:18,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212249555] [2021-03-10 18:01:18,178 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:18,178 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:18,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278695918] [2021-03-10 18:01:18,178 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:18,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:18,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:18,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:18,179 INFO L87 Difference]: Start difference. First operand 2703 states and 7016 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:19,242 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:01:19,528 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:01:19,750 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:01:20,003 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 18:01:20,439 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-03-10 18:01:20,966 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-10 18:01:21,189 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:01:21,477 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:21,742 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:22,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:22,851 INFO L93 Difference]: Finished difference Result 2872 states and 7321 transitions. [2021-03-10 18:01:22,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:01:22,853 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:22,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:22,856 INFO L225 Difference]: With dead ends: 2872 [2021-03-10 18:01:22,856 INFO L226 Difference]: Without dead ends: 2714 [2021-03-10 18:01:22,856 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4323.9ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:01:22,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2714 states. [2021-03-10 18:01:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2714 to 2692. [2021-03-10 18:01:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2692 states, 2691 states have (on average 2.5990338164251208) internal successors, (6994), 2691 states have internal predecessors, (6994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:22,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2692 states to 2692 states and 6994 transitions. [2021-03-10 18:01:22,889 INFO L78 Accepts]: Start accepts. Automaton has 2692 states and 6994 transitions. Word has length 113 [2021-03-10 18:01:22,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:22,889 INFO L480 AbstractCegarLoop]: Abstraction has 2692 states and 6994 transitions. [2021-03-10 18:01:22,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2692 states and 6994 transitions. [2021-03-10 18:01:22,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:22,892 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:22,892 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:22,892 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-10 18:01:22,892 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:22,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:22,892 INFO L82 PathProgramCache]: Analyzing trace with hash -904646034, now seen corresponding path program 106 times [2021-03-10 18:01:22,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:22,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096869819] [2021-03-10 18:01:22,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:24,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:24,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096869819] [2021-03-10 18:01:24,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:24,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:24,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581073544] [2021-03-10 18:01:24,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:24,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:24,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:24,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:24,418 INFO L87 Difference]: Start difference. First operand 2692 states and 6994 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:25,596 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:01:25,922 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-03-10 18:01:26,164 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-03-10 18:01:26,447 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-03-10 18:01:27,119 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 66 [2021-03-10 18:01:27,480 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-10 18:01:27,692 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:01:27,874 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:28,139 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:29,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:29,217 INFO L93 Difference]: Finished difference Result 2873 states and 7319 transitions. [2021-03-10 18:01:29,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:01:29,218 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:29,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:29,221 INFO L225 Difference]: With dead ends: 2873 [2021-03-10 18:01:29,221 INFO L226 Difference]: Without dead ends: 2654 [2021-03-10 18:01:29,222 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4311.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:01:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2654 states. [2021-03-10 18:01:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2654 to 2626. [2021-03-10 18:01:29,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2626 states, 2625 states have (on average 2.6026666666666665) internal successors, (6832), 2625 states have internal predecessors, (6832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2626 states to 2626 states and 6832 transitions. [2021-03-10 18:01:29,254 INFO L78 Accepts]: Start accepts. Automaton has 2626 states and 6832 transitions. Word has length 113 [2021-03-10 18:01:29,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:29,254 INFO L480 AbstractCegarLoop]: Abstraction has 2626 states and 6832 transitions. [2021-03-10 18:01:29,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:29,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2626 states and 6832 transitions. [2021-03-10 18:01:29,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:29,257 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:29,257 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:29,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-10 18:01:29,257 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:29,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:29,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1653047734, now seen corresponding path program 107 times [2021-03-10 18:01:29,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:29,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750559629] [2021-03-10 18:01:29,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:29,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:30,700 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750559629] [2021-03-10 18:01:30,700 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:30,700 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:30,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326963547] [2021-03-10 18:01:30,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:30,701 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:30,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:30,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:30,701 INFO L87 Difference]: Start difference. First operand 2626 states and 6832 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:31,822 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:01:32,162 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 18:01:32,405 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:01:33,031 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-03-10 18:01:33,294 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-03-10 18:01:33,669 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-03-10 18:01:33,886 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:01:34,043 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:34,329 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:35,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:35,527 INFO L93 Difference]: Finished difference Result 2785 states and 7120 transitions. [2021-03-10 18:01:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:01:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:35,530 INFO L225 Difference]: With dead ends: 2785 [2021-03-10 18:01:35,530 INFO L226 Difference]: Without dead ends: 2628 [2021-03-10 18:01:35,531 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4257.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:01:35,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2021-03-10 18:01:35,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2624. [2021-03-10 18:01:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 2623 states have (on average 2.6031261913839114) internal successors, (6828), 2623 states have internal predecessors, (6828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 6828 transitions. [2021-03-10 18:01:35,562 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 6828 transitions. Word has length 113 [2021-03-10 18:01:35,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:35,563 INFO L480 AbstractCegarLoop]: Abstraction has 2624 states and 6828 transitions. [2021-03-10 18:01:35,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 6828 transitions. [2021-03-10 18:01:35,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:35,565 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:35,565 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:35,565 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-10 18:01:35,565 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:35,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:35,566 INFO L82 PathProgramCache]: Analyzing trace with hash -225018026, now seen corresponding path program 108 times [2021-03-10 18:01:35,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:35,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233751246] [2021-03-10 18:01:35,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:36,947 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233751246] [2021-03-10 18:01:36,947 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:36,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:36,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548625619] [2021-03-10 18:01:36,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:36,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:36,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:36,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:36,948 INFO L87 Difference]: Start difference. First operand 2624 states and 6828 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:38,006 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:01:38,329 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 18:01:38,552 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:01:38,796 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-03-10 18:01:39,392 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-03-10 18:01:39,779 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-03-10 18:01:39,992 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:01:40,424 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:40,601 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-03-10 18:01:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:41,655 INFO L93 Difference]: Finished difference Result 2797 states and 7139 transitions. [2021-03-10 18:01:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:01:41,656 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:41,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:41,659 INFO L225 Difference]: With dead ends: 2797 [2021-03-10 18:01:41,659 INFO L226 Difference]: Without dead ends: 2642 [2021-03-10 18:01:41,659 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4219.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:01:41,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2021-03-10 18:01:41,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2622. [2021-03-10 18:01:41,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2621 states have (on average 2.602441816100725) internal successors, (6821), 2621 states have internal predecessors, (6821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:41,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 6821 transitions. [2021-03-10 18:01:41,691 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 6821 transitions. Word has length 113 [2021-03-10 18:01:41,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:41,691 INFO L480 AbstractCegarLoop]: Abstraction has 2622 states and 6821 transitions. [2021-03-10 18:01:41,692 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:41,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 6821 transitions. [2021-03-10 18:01:41,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:41,694 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:41,694 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:41,694 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-10 18:01:41,694 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:41,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:41,695 INFO L82 PathProgramCache]: Analyzing trace with hash 623477196, now seen corresponding path program 109 times [2021-03-10 18:01:41,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:41,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682936300] [2021-03-10 18:01:41,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:43,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:43,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682936300] [2021-03-10 18:01:43,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:43,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:43,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155285617] [2021-03-10 18:01:43,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:43,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:43,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:43,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:43,226 INFO L87 Difference]: Start difference. First operand 2622 states and 6821 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:44,467 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:01:44,784 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 18:01:45,005 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:01:45,245 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-03-10 18:01:45,649 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-03-10 18:01:45,840 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 18:01:46,373 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:47,247 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2021-03-10 18:01:48,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:48,380 INFO L93 Difference]: Finished difference Result 3162 states and 8057 transitions. [2021-03-10 18:01:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:01:48,381 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:48,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:48,384 INFO L225 Difference]: With dead ends: 3162 [2021-03-10 18:01:48,384 INFO L226 Difference]: Without dead ends: 2911 [2021-03-10 18:01:48,384 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4355.1ms TimeCoverageRelationStatistics Valid=487, Invalid=2375, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:01:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2021-03-10 18:01:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2787. [2021-03-10 18:01:48,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2786 states have (on average 2.5944005743000718) internal successors, (7228), 2786 states have internal predecessors, (7228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:48,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7228 transitions. [2021-03-10 18:01:48,418 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7228 transitions. Word has length 113 [2021-03-10 18:01:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:48,418 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 7228 transitions. [2021-03-10 18:01:48,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7228 transitions. [2021-03-10 18:01:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:48,421 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:48,421 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:48,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-10 18:01:48,421 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:48,421 INFO L82 PathProgramCache]: Analyzing trace with hash -986807262, now seen corresponding path program 110 times [2021-03-10 18:01:48,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:48,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130777450] [2021-03-10 18:01:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:48,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:49,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:49,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130777450] [2021-03-10 18:01:49,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:49,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:49,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491830097] [2021-03-10 18:01:49,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:49,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:49,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:49,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:49,921 INFO L87 Difference]: Start difference. First operand 2787 states and 7228 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:51,230 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:01:51,564 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 18:01:51,805 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:01:52,068 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-03-10 18:01:52,517 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-03-10 18:01:52,736 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 18:01:52,914 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:01:53,278 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:01:53,834 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:01:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:01:55,297 INFO L93 Difference]: Finished difference Result 3008 states and 7640 transitions. [2021-03-10 18:01:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 18:01:55,298 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:01:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:01:55,301 INFO L225 Difference]: With dead ends: 3008 [2021-03-10 18:01:55,301 INFO L226 Difference]: Without dead ends: 2878 [2021-03-10 18:01:55,301 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 4630.8ms TimeCoverageRelationStatistics Valid=489, Invalid=2481, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 18:01:55,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2878 states. [2021-03-10 18:01:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2878 to 2754. [2021-03-10 18:01:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 2753 states have (on average 2.5935343261896113) internal successors, (7140), 2753 states have internal predecessors, (7140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:55,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 7140 transitions. [2021-03-10 18:01:55,333 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 7140 transitions. Word has length 113 [2021-03-10 18:01:55,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:01:55,333 INFO L480 AbstractCegarLoop]: Abstraction has 2754 states and 7140 transitions. [2021-03-10 18:01:55,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:55,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 7140 transitions. [2021-03-10 18:01:55,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:01:55,335 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:01:55,335 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:01:55,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-10 18:01:55,336 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:01:55,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:01:55,336 INFO L82 PathProgramCache]: Analyzing trace with hash 455855826, now seen corresponding path program 111 times [2021-03-10 18:01:55,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:01:55,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635793556] [2021-03-10 18:01:55,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:01:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:01:56,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:01:56,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635793556] [2021-03-10 18:01:56,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:01:56,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:01:56,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644192864] [2021-03-10 18:01:56,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:01:56,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:01:56,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:01:56,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:01:56,831 INFO L87 Difference]: Start difference. First operand 2754 states and 7140 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:01:58,022 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:01:58,560 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:01:58,839 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-03-10 18:01:59,343 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-03-10 18:01:59,564 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-03-10 18:01:59,770 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2021-03-10 18:02:00,474 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2021-03-10 18:02:00,679 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-03-10 18:02:01,021 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-03-10 18:02:01,213 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-03-10 18:02:02,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:02,303 INFO L93 Difference]: Finished difference Result 2956 states and 7522 transitions. [2021-03-10 18:02:02,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:02:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:02,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:02,307 INFO L225 Difference]: With dead ends: 2956 [2021-03-10 18:02:02,307 INFO L226 Difference]: Without dead ends: 2657 [2021-03-10 18:02:02,308 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 4506.3ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:02,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2021-03-10 18:02:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 2600. [2021-03-10 18:02:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2599 states have (on average 2.603308964986533) internal successors, (6766), 2599 states have internal predecessors, (6766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:02,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 6766 transitions. [2021-03-10 18:02:02,337 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 6766 transitions. Word has length 113 [2021-03-10 18:02:02,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:02,338 INFO L480 AbstractCegarLoop]: Abstraction has 2600 states and 6766 transitions. [2021-03-10 18:02:02,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 6766 transitions. [2021-03-10 18:02:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:02,340 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:02,340 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:02,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-10 18:02:02,340 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:02,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:02,341 INFO L82 PathProgramCache]: Analyzing trace with hash -351417838, now seen corresponding path program 112 times [2021-03-10 18:02:02,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:02,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904247331] [2021-03-10 18:02:02,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:03,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904247331] [2021-03-10 18:02:03,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:03,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:03,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914803371] [2021-03-10 18:02:03,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:03,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:03,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:03,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:03,725 INFO L87 Difference]: Start difference. First operand 2600 states and 6766 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:04,731 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:05,024 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-03-10 18:02:05,241 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 55 [2021-03-10 18:02:05,496 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 59 [2021-03-10 18:02:05,899 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-03-10 18:02:06,414 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-03-10 18:02:06,621 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:02:06,912 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:07,174 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:02:08,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:08,302 INFO L93 Difference]: Finished difference Result 2767 states and 7068 transitions. [2021-03-10 18:02:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:02:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:08,306 INFO L225 Difference]: With dead ends: 2767 [2021-03-10 18:02:08,306 INFO L226 Difference]: Without dead ends: 2543 [2021-03-10 18:02:08,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4236.4ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2543 states. [2021-03-10 18:02:08,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2543 to 2523. [2021-03-10 18:02:08,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2522 states have (on average 2.6241078509119746) internal successors, (6618), 2522 states have internal predecessors, (6618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 6618 transitions. [2021-03-10 18:02:08,336 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 6618 transitions. Word has length 113 [2021-03-10 18:02:08,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:08,336 INFO L480 AbstractCegarLoop]: Abstraction has 2523 states and 6618 transitions. [2021-03-10 18:02:08,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 6618 transitions. [2021-03-10 18:02:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:08,338 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:08,338 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:08,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-10 18:02:08,338 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:08,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:08,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1543117290, now seen corresponding path program 113 times [2021-03-10 18:02:08,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:08,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408487371] [2021-03-10 18:02:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:09,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:09,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408487371] [2021-03-10 18:02:09,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:09,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:09,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471761961] [2021-03-10 18:02:09,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:09,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:09,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:09,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:09,950 INFO L87 Difference]: Start difference. First operand 2523 states and 6618 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:11,222 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:11,832 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:12,042 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:12,323 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:02:12,746 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:02:12,952 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:02:13,116 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:13,309 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 18:02:13,518 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 18:02:13,879 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 18:02:15,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:15,163 INFO L93 Difference]: Finished difference Result 2910 states and 7433 transitions. [2021-03-10 18:02:15,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:02:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:15,167 INFO L225 Difference]: With dead ends: 2910 [2021-03-10 18:02:15,167 INFO L226 Difference]: Without dead ends: 2750 [2021-03-10 18:02:15,167 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 4521.4ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:15,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2750 states. [2021-03-10 18:02:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2750 to 2563. [2021-03-10 18:02:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2562 states have (on average 2.621389539422326) internal successors, (6716), 2562 states have internal predecessors, (6716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:15,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 6716 transitions. [2021-03-10 18:02:15,197 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 6716 transitions. Word has length 113 [2021-03-10 18:02:15,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:15,197 INFO L480 AbstractCegarLoop]: Abstraction has 2563 states and 6716 transitions. [2021-03-10 18:02:15,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 6716 transitions. [2021-03-10 18:02:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:15,199 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:15,199 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:15,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-10 18:02:15,199 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:15,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:15,200 INFO L82 PathProgramCache]: Analyzing trace with hash -426013456, now seen corresponding path program 114 times [2021-03-10 18:02:15,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:15,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822131170] [2021-03-10 18:02:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:16,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:16,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822131170] [2021-03-10 18:02:16,693 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:16,693 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:16,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820176147] [2021-03-10 18:02:16,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:16,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:16,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:16,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:16,694 INFO L87 Difference]: Start difference. First operand 2563 states and 6716 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:17,859 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:18,432 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:18,618 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:18,886 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:02:19,289 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:02:19,545 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 18:02:19,794 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:02:20,079 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:20,365 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:02:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:21,647 INFO L93 Difference]: Finished difference Result 2840 states and 7283 transitions. [2021-03-10 18:02:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:02:21,648 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:21,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:21,651 INFO L225 Difference]: With dead ends: 2840 [2021-03-10 18:02:21,651 INFO L226 Difference]: Without dead ends: 2691 [2021-03-10 18:02:21,652 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4320.2ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:21,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-03-10 18:02:21,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2561. [2021-03-10 18:02:21,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2561 states, 2560 states have (on average 2.621484375) internal successors, (6711), 2560 states have internal predecessors, (6711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2561 states to 2561 states and 6711 transitions. [2021-03-10 18:02:21,701 INFO L78 Accepts]: Start accepts. Automaton has 2561 states and 6711 transitions. Word has length 113 [2021-03-10 18:02:21,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:21,701 INFO L480 AbstractCegarLoop]: Abstraction has 2561 states and 6711 transitions. [2021-03-10 18:02:21,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:21,702 INFO L276 IsEmpty]: Start isEmpty. Operand 2561 states and 6711 transitions. [2021-03-10 18:02:21,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:21,704 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:21,704 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:21,704 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-10 18:02:21,704 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:21,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:21,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1991178610, now seen corresponding path program 115 times [2021-03-10 18:02:21,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:21,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88042743] [2021-03-10 18:02:21,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:23,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88042743] [2021-03-10 18:02:23,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:23,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:23,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005743999] [2021-03-10 18:02:23,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:23,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:23,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:23,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:23,358 INFO L87 Difference]: Start difference. First operand 2561 states and 6711 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:24,603 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:25,196 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:25,389 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:25,657 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:02:25,942 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-03-10 18:02:26,382 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 18:02:26,599 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:02:26,778 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:27,074 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:02:28,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:28,289 INFO L93 Difference]: Finished difference Result 2838 states and 7278 transitions. [2021-03-10 18:02:28,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:02:28,291 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:28,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:28,294 INFO L225 Difference]: With dead ends: 2838 [2021-03-10 18:02:28,294 INFO L226 Difference]: Without dead ends: 2679 [2021-03-10 18:02:28,294 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4342.9ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:02:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2679 states. [2021-03-10 18:02:28,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2679 to 2557. [2021-03-10 18:02:28,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2557 states, 2556 states have (on average 2.618544600938967) internal successors, (6693), 2556 states have internal predecessors, (6693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:28,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2557 states to 2557 states and 6693 transitions. [2021-03-10 18:02:28,325 INFO L78 Accepts]: Start accepts. Automaton has 2557 states and 6693 transitions. Word has length 113 [2021-03-10 18:02:28,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:28,325 INFO L480 AbstractCegarLoop]: Abstraction has 2557 states and 6693 transitions. [2021-03-10 18:02:28,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:28,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2557 states and 6693 transitions. [2021-03-10 18:02:28,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:28,327 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:28,328 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:28,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-10 18:02:28,328 INFO L428 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:28,328 INFO L82 PathProgramCache]: Analyzing trace with hash 2050879086, now seen corresponding path program 116 times [2021-03-10 18:02:28,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:28,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926468819] [2021-03-10 18:02:28,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:29,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926468819] [2021-03-10 18:02:29,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:29,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:29,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135712845] [2021-03-10 18:02:29,880 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:29,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:29,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:29,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:29,881 INFO L87 Difference]: Start difference. First operand 2557 states and 6693 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:30,971 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:31,521 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:31,702 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:32,004 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-03-10 18:02:32,198 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:02:32,383 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:32,658 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-10 18:02:32,831 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-03-10 18:02:33,051 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-03-10 18:02:33,283 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2021-03-10 18:02:33,862 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-03-10 18:02:34,078 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-03-10 18:02:34,855 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-03-10 18:02:35,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:35,657 INFO L93 Difference]: Finished difference Result 3122 states and 7859 transitions. [2021-03-10 18:02:35,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 18:02:35,659 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:35,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:35,661 INFO L225 Difference]: With dead ends: 3122 [2021-03-10 18:02:35,661 INFO L226 Difference]: Without dead ends: 2917 [2021-03-10 18:02:35,662 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 5016.8ms TimeCoverageRelationStatistics Valid=559, Invalid=2747, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 18:02:35,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2021-03-10 18:02:35,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 2563. [2021-03-10 18:02:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 2562 states have (on average 2.6159250585480094) internal successors, (6702), 2562 states have internal predecessors, (6702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:35,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 6702 transitions. [2021-03-10 18:02:35,695 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 6702 transitions. Word has length 113 [2021-03-10 18:02:35,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:35,695 INFO L480 AbstractCegarLoop]: Abstraction has 2563 states and 6702 transitions. [2021-03-10 18:02:35,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:35,695 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 6702 transitions. [2021-03-10 18:02:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:35,698 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:35,698 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:35,698 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2021-03-10 18:02:35,698 INFO L428 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:35,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:35,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1908168584, now seen corresponding path program 117 times [2021-03-10 18:02:35,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:35,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942223266] [2021-03-10 18:02:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:37,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:37,240 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942223266] [2021-03-10 18:02:37,240 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:37,240 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:37,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747617505] [2021-03-10 18:02:37,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:37,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:37,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:37,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:37,241 INFO L87 Difference]: Start difference. First operand 2563 states and 6702 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:38,341 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:38,887 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:39,082 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:39,401 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-03-10 18:02:39,704 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:02:39,945 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 18:02:40,110 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2021-03-10 18:02:40,259 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:40,477 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-03-10 18:02:40,694 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 18:02:41,101 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 18:02:42,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:42,328 INFO L93 Difference]: Finished difference Result 2940 states and 7493 transitions. [2021-03-10 18:02:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:02:42,330 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:42,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:42,333 INFO L225 Difference]: With dead ends: 2940 [2021-03-10 18:02:42,333 INFO L226 Difference]: Without dead ends: 2780 [2021-03-10 18:02:42,334 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 4636.3ms TimeCoverageRelationStatistics Valid=474, Invalid=2388, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:02:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2021-03-10 18:02:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2565. [2021-03-10 18:02:42,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2565 states, 2564 states have (on average 2.6150546021840873) internal successors, (6705), 2564 states have internal predecessors, (6705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:42,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2565 states to 2565 states and 6705 transitions. [2021-03-10 18:02:42,367 INFO L78 Accepts]: Start accepts. Automaton has 2565 states and 6705 transitions. Word has length 113 [2021-03-10 18:02:42,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:42,367 INFO L480 AbstractCegarLoop]: Abstraction has 2565 states and 6705 transitions. [2021-03-10 18:02:42,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:42,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2565 states and 6705 transitions. [2021-03-10 18:02:42,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:42,370 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:42,370 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:42,370 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2021-03-10 18:02:42,370 INFO L428 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:42,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:42,370 INFO L82 PathProgramCache]: Analyzing trace with hash -791064750, now seen corresponding path program 118 times [2021-03-10 18:02:42,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:42,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889897928] [2021-03-10 18:02:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:43,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:43,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889897928] [2021-03-10 18:02:43,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:43,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:43,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41361982] [2021-03-10 18:02:43,895 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:43,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:43,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:43,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:43,895 INFO L87 Difference]: Start difference. First operand 2565 states and 6705 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:45,656 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:45,849 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2021-03-10 18:02:46,185 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-03-10 18:02:46,477 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:02:46,736 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 18:02:47,116 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-03-10 18:02:47,294 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:47,717 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:02:47,918 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-03-10 18:02:49,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:49,144 INFO L93 Difference]: Finished difference Result 2866 states and 7337 transitions. [2021-03-10 18:02:49,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:02:49,145 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:49,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:49,148 INFO L225 Difference]: With dead ends: 2866 [2021-03-10 18:02:49,148 INFO L226 Difference]: Without dead ends: 2693 [2021-03-10 18:02:49,149 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 4441.1ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:02:49,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2693 states. [2021-03-10 18:02:49,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2693 to 2539. [2021-03-10 18:02:49,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 2.619385342789598) internal successors, (6648), 2538 states have internal predecessors, (6648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:49,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 6648 transitions. [2021-03-10 18:02:49,181 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 6648 transitions. Word has length 113 [2021-03-10 18:02:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:49,181 INFO L480 AbstractCegarLoop]: Abstraction has 2539 states and 6648 transitions. [2021-03-10 18:02:49,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 6648 transitions. [2021-03-10 18:02:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:49,183 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:49,183 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:49,184 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2021-03-10 18:02:49,184 INFO L428 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:49,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:49,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1659932982, now seen corresponding path program 119 times [2021-03-10 18:02:49,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:49,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398143853] [2021-03-10 18:02:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:50,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:50,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398143853] [2021-03-10 18:02:50,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:50,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:50,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223098173] [2021-03-10 18:02:50,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:50,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:50,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:50,771 INFO L87 Difference]: Start difference. First operand 2539 states and 6648 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:51,924 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 50 [2021-03-10 18:02:52,551 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-03-10 18:02:52,756 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2021-03-10 18:02:53,019 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-10 18:02:53,270 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-03-10 18:02:53,678 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-10 18:02:53,886 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:02:54,048 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:02:54,320 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:02:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:02:55,496 INFO L93 Difference]: Finished difference Result 2796 states and 7175 transitions. [2021-03-10 18:02:55,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:02:55,498 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:02:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:02:55,501 INFO L225 Difference]: With dead ends: 2796 [2021-03-10 18:02:55,501 INFO L226 Difference]: Without dead ends: 2633 [2021-03-10 18:02:55,501 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 4459.7ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:02:55,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2021-03-10 18:02:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2529. [2021-03-10 18:02:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2529 states, 2528 states have (on average 2.6214398734177213) internal successors, (6627), 2528 states have internal predecessors, (6627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2529 states to 2529 states and 6627 transitions. [2021-03-10 18:02:55,533 INFO L78 Accepts]: Start accepts. Automaton has 2529 states and 6627 transitions. Word has length 113 [2021-03-10 18:02:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:02:55,533 INFO L480 AbstractCegarLoop]: Abstraction has 2529 states and 6627 transitions. [2021-03-10 18:02:55,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2529 states and 6627 transitions. [2021-03-10 18:02:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:02:55,536 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:02:55,536 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:02:55,536 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2021-03-10 18:02:55,536 INFO L428 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:02:55,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:02:55,536 INFO L82 PathProgramCache]: Analyzing trace with hash -43991848, now seen corresponding path program 120 times [2021-03-10 18:02:55,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:02:55,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551422991] [2021-03-10 18:02:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:02:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:02:57,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:02:57,005 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551422991] [2021-03-10 18:02:57,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:02:57,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:02:57,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971975353] [2021-03-10 18:02:57,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:02:57,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:02:57,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:02:57,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:02:57,006 INFO L87 Difference]: Start difference. First operand 2529 states and 6627 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:02:58,131 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2021-03-10 18:02:58,773 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2021-03-10 18:02:59,018 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 18:02:59,247 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:02:59,667 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:02:59,895 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:03:00,081 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-03-10 18:03:00,294 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 18:03:00,544 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 18:03:00,892 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 18:03:01,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:01,790 INFO L93 Difference]: Finished difference Result 2812 states and 7196 transitions. [2021-03-10 18:03:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:03:01,791 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:01,793 INFO L225 Difference]: With dead ends: 2812 [2021-03-10 18:03:01,793 INFO L226 Difference]: Without dead ends: 2652 [2021-03-10 18:03:01,794 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 4299.7ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:03:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2652 states. [2021-03-10 18:03:01,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2652 to 2541. [2021-03-10 18:03:01,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2540 states have (on average 2.62007874015748) internal successors, (6655), 2540 states have internal predecessors, (6655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 6655 transitions. [2021-03-10 18:03:01,820 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 6655 transitions. Word has length 113 [2021-03-10 18:03:01,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:01,820 INFO L480 AbstractCegarLoop]: Abstraction has 2541 states and 6655 transitions. [2021-03-10 18:03:01,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:01,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 6655 transitions. [2021-03-10 18:03:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:01,822 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:01,822 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:01,822 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2021-03-10 18:03:01,822 INFO L428 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:01,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:01,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1073111986, now seen corresponding path program 121 times [2021-03-10 18:03:01,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:01,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290191979] [2021-03-10 18:03:01,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:03,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290191979] [2021-03-10 18:03:03,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:03,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:03,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461304339] [2021-03-10 18:03:03,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:03,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:03,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:03,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:03,028 INFO L87 Difference]: Start difference. First operand 2541 states and 6655 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:04,510 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 18:03:04,679 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:03:04,960 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 60 [2021-03-10 18:03:05,162 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-03-10 18:03:05,337 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:03:05,793 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:06,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:06,685 INFO L93 Difference]: Finished difference Result 2742 states and 7046 transitions. [2021-03-10 18:03:06,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:03:06,687 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:06,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:06,689 INFO L225 Difference]: With dead ends: 2742 [2021-03-10 18:03:06,689 INFO L226 Difference]: Without dead ends: 2593 [2021-03-10 18:03:06,689 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 3508.2ms TimeCoverageRelationStatistics Valid=467, Invalid=2289, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:03:06,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2593 states. [2021-03-10 18:03:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2593 to 2539. [2021-03-10 18:03:06,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 2.620173364854216) internal successors, (6650), 2538 states have internal predecessors, (6650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 6650 transitions. [2021-03-10 18:03:06,714 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 6650 transitions. Word has length 113 [2021-03-10 18:03:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:06,715 INFO L480 AbstractCegarLoop]: Abstraction has 2539 states and 6650 transitions. [2021-03-10 18:03:06,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 6650 transitions. [2021-03-10 18:03:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:06,716 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:06,717 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:06,717 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2021-03-10 18:03:06,717 INFO L428 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:06,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:06,717 INFO L82 PathProgramCache]: Analyzing trace with hash -804663244, now seen corresponding path program 122 times [2021-03-10 18:03:06,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:06,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392567569] [2021-03-10 18:03:06,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:07,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392567569] [2021-03-10 18:03:07,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:07,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:07,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729371846] [2021-03-10 18:03:07,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:07,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:07,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:07,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:07,880 INFO L87 Difference]: Start difference. First operand 2539 states and 6650 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:09,312 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 18:03:09,476 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 58 [2021-03-10 18:03:09,701 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 62 [2021-03-10 18:03:10,014 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 64 [2021-03-10 18:03:10,506 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:11,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:11,355 INFO L93 Difference]: Finished difference Result 2754 states and 7064 transitions. [2021-03-10 18:03:11,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:03:11,356 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:11,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:11,358 INFO L225 Difference]: With dead ends: 2754 [2021-03-10 18:03:11,359 INFO L226 Difference]: Without dead ends: 2595 [2021-03-10 18:03:11,359 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3304.0ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:03:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2021-03-10 18:03:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2535. [2021-03-10 18:03:11,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2534 states have (on average 2.6195737963693766) internal successors, (6638), 2534 states have internal predecessors, (6638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:11,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 6638 transitions. [2021-03-10 18:03:11,384 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 6638 transitions. Word has length 113 [2021-03-10 18:03:11,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:11,384 INFO L480 AbstractCegarLoop]: Abstraction has 2535 states and 6638 transitions. [2021-03-10 18:03:11,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 6638 transitions. [2021-03-10 18:03:11,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:11,386 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:11,386 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:11,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2021-03-10 18:03:11,386 INFO L428 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:11,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:11,387 INFO L82 PathProgramCache]: Analyzing trace with hash -785215762, now seen corresponding path program 123 times [2021-03-10 18:03:11,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:11,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915057596] [2021-03-10 18:03:11,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:12,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915057596] [2021-03-10 18:03:12,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:12,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:12,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595555348] [2021-03-10 18:03:12,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:12,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:12,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:12,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:12,495 INFO L87 Difference]: Start difference. First operand 2535 states and 6638 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:13,720 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-03-10 18:03:13,885 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 18:03:14,051 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 62 [2021-03-10 18:03:14,260 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-03-10 18:03:14,578 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-10 18:03:15,070 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:15,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:15,912 INFO L93 Difference]: Finished difference Result 2740 states and 7035 transitions. [2021-03-10 18:03:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:03:15,912 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:15,915 INFO L225 Difference]: With dead ends: 2740 [2021-03-10 18:03:15,915 INFO L226 Difference]: Without dead ends: 2583 [2021-03-10 18:03:15,915 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3264.8ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:03:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2583 states. [2021-03-10 18:03:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2583 to 2531. [2021-03-10 18:03:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2531 states, 2530 states have (on average 2.6205533596837944) internal successors, (6630), 2530 states have internal predecessors, (6630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 6630 transitions. [2021-03-10 18:03:15,940 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 6630 transitions. Word has length 113 [2021-03-10 18:03:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:15,940 INFO L480 AbstractCegarLoop]: Abstraction has 2531 states and 6630 transitions. [2021-03-10 18:03:15,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 6630 transitions. [2021-03-10 18:03:15,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:15,942 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:15,942 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:15,942 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2021-03-10 18:03:15,942 INFO L428 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:15,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:15,943 INFO L82 PathProgramCache]: Analyzing trace with hash -920099624, now seen corresponding path program 124 times [2021-03-10 18:03:15,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:15,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464512677] [2021-03-10 18:03:15,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:15,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:17,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:17,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464512677] [2021-03-10 18:03:17,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:17,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:17,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789626074] [2021-03-10 18:03:17,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:17,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:17,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:17,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:17,044 INFO L87 Difference]: Start difference. First operand 2531 states and 6630 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:18,478 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 18:03:18,646 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 18:03:18,964 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 18:03:19,407 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-03-10 18:03:19,585 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2021-03-10 18:03:19,885 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2021-03-10 18:03:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:20,794 INFO L93 Difference]: Finished difference Result 2806 states and 7179 transitions. [2021-03-10 18:03:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:03:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:20,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:20,798 INFO L225 Difference]: With dead ends: 2806 [2021-03-10 18:03:20,798 INFO L226 Difference]: Without dead ends: 2646 [2021-03-10 18:03:20,798 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 3398.9ms TimeCoverageRelationStatistics Valid=455, Invalid=2301, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:03:20,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2021-03-10 18:03:20,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2541. [2021-03-10 18:03:20,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2541 states, 2540 states have (on average 2.619291338582677) internal successors, (6653), 2540 states have internal predecessors, (6653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 6653 transitions. [2021-03-10 18:03:20,823 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 6653 transitions. Word has length 113 [2021-03-10 18:03:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:20,823 INFO L480 AbstractCegarLoop]: Abstraction has 2541 states and 6653 transitions. [2021-03-10 18:03:20,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 6653 transitions. [2021-03-10 18:03:20,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:20,825 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:20,825 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:20,825 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2021-03-10 18:03:20,825 INFO L428 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:20,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:20,825 INFO L82 PathProgramCache]: Analyzing trace with hash -862018012, now seen corresponding path program 125 times [2021-03-10 18:03:20,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:20,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719036802] [2021-03-10 18:03:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:21,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:21,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719036802] [2021-03-10 18:03:21,847 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:21,847 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:21,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260052270] [2021-03-10 18:03:21,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:21,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:21,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:21,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:21,848 INFO L87 Difference]: Start difference. First operand 2541 states and 6653 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:23,108 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2021-03-10 18:03:23,277 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 18:03:23,449 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 18:03:23,735 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2021-03-10 18:03:23,951 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-10 18:03:24,128 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:03:24,584 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:25,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:25,440 INFO L93 Difference]: Finished difference Result 2736 states and 7029 transitions. [2021-03-10 18:03:25,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 18:03:25,441 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:25,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:25,443 INFO L225 Difference]: With dead ends: 2736 [2021-03-10 18:03:25,443 INFO L226 Difference]: Without dead ends: 2587 [2021-03-10 18:03:25,443 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 3297.8ms TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2021-03-10 18:03:25,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2021-03-10 18:03:25,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2539. [2021-03-10 18:03:25,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2539 states, 2538 states have (on average 2.619385342789598) internal successors, (6648), 2538 states have internal predecessors, (6648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:25,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2539 states to 2539 states and 6648 transitions. [2021-03-10 18:03:25,467 INFO L78 Accepts]: Start accepts. Automaton has 2539 states and 6648 transitions. Word has length 113 [2021-03-10 18:03:25,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:25,468 INFO L480 AbstractCegarLoop]: Abstraction has 2539 states and 6648 transitions. [2021-03-10 18:03:25,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:25,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2539 states and 6648 transitions. [2021-03-10 18:03:25,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:25,469 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:25,469 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:25,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2021-03-10 18:03:25,470 INFO L428 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:25,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:25,470 INFO L82 PathProgramCache]: Analyzing trace with hash -878482254, now seen corresponding path program 126 times [2021-03-10 18:03:25,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:25,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333333819] [2021-03-10 18:03:25,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:25,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:26,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333333819] [2021-03-10 18:03:26,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:26,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:26,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641351408] [2021-03-10 18:03:26,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:26,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:26,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:26,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:26,459 INFO L87 Difference]: Start difference. First operand 2539 states and 6648 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:27,931 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2021-03-10 18:03:28,111 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-03-10 18:03:28,352 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 66 [2021-03-10 18:03:28,684 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 68 [2021-03-10 18:03:28,842 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:03:29,217 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:30,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:30,082 INFO L93 Difference]: Finished difference Result 2734 states and 7024 transitions. [2021-03-10 18:03:30,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:03:30,083 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:30,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:30,085 INFO L225 Difference]: With dead ends: 2734 [2021-03-10 18:03:30,085 INFO L226 Difference]: Without dead ends: 2575 [2021-03-10 18:03:30,085 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 3204.6ms TimeCoverageRelationStatistics Valid=452, Invalid=2200, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:03:30,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2575 states. [2021-03-10 18:03:30,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2575 to 2535. [2021-03-10 18:03:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2535 states, 2534 states have (on average 2.6187845303867405) internal successors, (6636), 2534 states have internal predecessors, (6636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:30,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2535 states to 2535 states and 6636 transitions. [2021-03-10 18:03:30,109 INFO L78 Accepts]: Start accepts. Automaton has 2535 states and 6636 transitions. Word has length 113 [2021-03-10 18:03:30,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:30,109 INFO L480 AbstractCegarLoop]: Abstraction has 2535 states and 6636 transitions. [2021-03-10 18:03:30,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2535 states and 6636 transitions. [2021-03-10 18:03:30,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:30,111 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:30,111 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:30,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2021-03-10 18:03:30,111 INFO L428 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:30,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:30,112 INFO L82 PathProgramCache]: Analyzing trace with hash -492784272, now seen corresponding path program 127 times [2021-03-10 18:03:30,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:30,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942338093] [2021-03-10 18:03:30,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:31,225 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942338093] [2021-03-10 18:03:31,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:31,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:31,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901914608] [2021-03-10 18:03:31,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:31,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:31,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:31,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:31,226 INFO L87 Difference]: Start difference. First operand 2535 states and 6636 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:32,617 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 53 [2021-03-10 18:03:32,784 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 58 [2021-03-10 18:03:32,993 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2021-03-10 18:03:33,267 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 64 [2021-03-10 18:03:33,408 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-03-10 18:03:33,735 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:03:34,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:34,596 INFO L93 Difference]: Finished difference Result 2720 states and 6995 transitions. [2021-03-10 18:03:34,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-03-10 18:03:34,597 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:34,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:34,600 INFO L225 Difference]: With dead ends: 2720 [2021-03-10 18:03:34,600 INFO L226 Difference]: Without dead ends: 2522 [2021-03-10 18:03:34,600 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 3268.1ms TimeCoverageRelationStatistics Valid=450, Invalid=2202, Unknown=0, NotChecked=0, Total=2652 [2021-03-10 18:03:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2522 states. [2021-03-10 18:03:34,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2522 to 2490. [2021-03-10 18:03:34,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2489 states have (on average 2.623543591803937) internal successors, (6530), 2489 states have internal predecessors, (6530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 6530 transitions. [2021-03-10 18:03:34,625 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 6530 transitions. Word has length 113 [2021-03-10 18:03:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:34,625 INFO L480 AbstractCegarLoop]: Abstraction has 2490 states and 6530 transitions. [2021-03-10 18:03:34,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:34,625 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 6530 transitions. [2021-03-10 18:03:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:34,627 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:34,627 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:34,627 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2021-03-10 18:03:34,627 INFO L428 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1076842348, now seen corresponding path program 128 times [2021-03-10 18:03:34,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:34,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822787085] [2021-03-10 18:03:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:35,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822787085] [2021-03-10 18:03:35,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:35,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:35,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340184237] [2021-03-10 18:03:35,768 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:35,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:35,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:35,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:35,769 INFO L87 Difference]: Start difference. First operand 2490 states and 6530 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:36,961 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:03:37,141 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:03:37,447 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:03:38,405 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2021-03-10 18:03:38,704 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2021-03-10 18:03:38,881 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-10 18:03:39,153 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 60 [2021-03-10 18:03:39,318 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2021-03-10 18:03:39,464 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-03-10 18:03:41,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:41,090 INFO L93 Difference]: Finished difference Result 3571 states and 9074 transitions. [2021-03-10 18:03:41,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 18:03:41,091 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:41,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:41,094 INFO L225 Difference]: With dead ends: 3571 [2021-03-10 18:03:41,094 INFO L226 Difference]: Without dead ends: 3365 [2021-03-10 18:03:41,094 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 4296.0ms TimeCoverageRelationStatistics Valid=604, Invalid=3056, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 18:03:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3365 states. [2021-03-10 18:03:41,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3365 to 2490. [2021-03-10 18:03:41,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2490 states, 2489 states have (on average 2.6215347529128166) internal successors, (6525), 2489 states have internal predecessors, (6525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 6525 transitions. [2021-03-10 18:03:41,123 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 6525 transitions. Word has length 113 [2021-03-10 18:03:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:41,123 INFO L480 AbstractCegarLoop]: Abstraction has 2490 states and 6525 transitions. [2021-03-10 18:03:41,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 6525 transitions. [2021-03-10 18:03:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:41,125 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:41,125 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:41,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2021-03-10 18:03:41,125 INFO L428 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:41,126 INFO L82 PathProgramCache]: Analyzing trace with hash -986828950, now seen corresponding path program 129 times [2021-03-10 18:03:41,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:41,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275232383] [2021-03-10 18:03:41,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:41,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:42,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275232383] [2021-03-10 18:03:42,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:42,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:42,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548508991] [2021-03-10 18:03:42,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:42,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:42,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:42,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:42,253 INFO L87 Difference]: Start difference. First operand 2490 states and 6525 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:43,353 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:03:43,526 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:03:43,804 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:03:44,239 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:03:44,418 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 18:03:44,814 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-10 18:03:45,021 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-03-10 18:03:45,167 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-03-10 18:03:45,835 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2021-03-10 18:03:47,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:47,045 INFO L93 Difference]: Finished difference Result 3982 states and 10287 transitions. [2021-03-10 18:03:47,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 18:03:47,046 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:47,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:47,049 INFO L225 Difference]: With dead ends: 3982 [2021-03-10 18:03:47,049 INFO L226 Difference]: Without dead ends: 3591 [2021-03-10 18:03:47,049 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 634 ImplicationChecksByTransitivity, 4292.7ms TimeCoverageRelationStatistics Valid=632, Invalid=3028, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 18:03:47,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3591 states. [2021-03-10 18:03:47,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3591 to 2765. [2021-03-10 18:03:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2764 states have (on average 2.6193921852387843) internal successors, (7240), 2764 states have internal predecessors, (7240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 7240 transitions. [2021-03-10 18:03:47,080 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 7240 transitions. Word has length 113 [2021-03-10 18:03:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:47,080 INFO L480 AbstractCegarLoop]: Abstraction has 2765 states and 7240 transitions. [2021-03-10 18:03:47,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 7240 transitions. [2021-03-10 18:03:47,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:47,082 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:47,082 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:47,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2021-03-10 18:03:47,082 INFO L428 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:47,082 INFO L82 PathProgramCache]: Analyzing trace with hash 221596414, now seen corresponding path program 130 times [2021-03-10 18:03:47,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:47,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844914720] [2021-03-10 18:03:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:48,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:48,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844914720] [2021-03-10 18:03:48,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:48,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:48,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108744996] [2021-03-10 18:03:48,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:48,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:48,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:48,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:48,259 INFO L87 Difference]: Start difference. First operand 2765 states and 7240 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:49,416 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:03:49,598 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:03:49,901 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:03:50,357 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:03:50,542 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 18:03:50,999 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2021-03-10 18:03:51,222 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2021-03-10 18:03:51,663 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-03-10 18:03:51,818 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-03-10 18:03:51,966 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-03-10 18:03:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:53,661 INFO L93 Difference]: Finished difference Result 3722 states and 9550 transitions. [2021-03-10 18:03:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-03-10 18:03:53,663 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:53,666 INFO L225 Difference]: With dead ends: 3722 [2021-03-10 18:03:53,666 INFO L226 Difference]: Without dead ends: 3536 [2021-03-10 18:03:53,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 4613.2ms TimeCoverageRelationStatistics Valid=658, Invalid=3248, Unknown=0, NotChecked=0, Total=3906 [2021-03-10 18:03:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2021-03-10 18:03:53,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 2710. [2021-03-10 18:03:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2709 states have (on average 2.6157253599114063) internal successors, (7086), 2709 states have internal predecessors, (7086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 7086 transitions. [2021-03-10 18:03:53,697 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 7086 transitions. Word has length 113 [2021-03-10 18:03:53,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:53,697 INFO L480 AbstractCegarLoop]: Abstraction has 2710 states and 7086 transitions. [2021-03-10 18:03:53,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:53,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 7086 transitions. [2021-03-10 18:03:53,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:53,699 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:53,699 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:53,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2021-03-10 18:03:53,699 INFO L428 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:53,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:53,700 INFO L82 PathProgramCache]: Analyzing trace with hash -133370288, now seen corresponding path program 131 times [2021-03-10 18:03:53,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:53,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048070255] [2021-03-10 18:03:53,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:03:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:03:54,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048070255] [2021-03-10 18:03:54,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:03:54,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:03:54,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326005348] [2021-03-10 18:03:54,859 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:03:54,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:03:54,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:03:54,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:03:54,860 INFO L87 Difference]: Start difference. First operand 2710 states and 7086 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:56,033 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:03:56,243 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:03:56,543 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:03:57,006 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2021-03-10 18:03:57,192 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2021-03-10 18:03:57,877 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2021-03-10 18:03:58,049 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2021-03-10 18:03:58,329 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-03-10 18:03:58,497 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2021-03-10 18:03:58,646 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2021-03-10 18:03:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:03:59,834 INFO L93 Difference]: Finished difference Result 3638 states and 9348 transitions. [2021-03-10 18:03:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-03-10 18:03:59,835 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:03:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:03:59,839 INFO L225 Difference]: With dead ends: 3638 [2021-03-10 18:03:59,839 INFO L226 Difference]: Without dead ends: 3172 [2021-03-10 18:03:59,839 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 4149.6ms TimeCoverageRelationStatistics Valid=555, Invalid=2751, Unknown=0, NotChecked=0, Total=3306 [2021-03-10 18:03:59,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2021-03-10 18:03:59,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2435. [2021-03-10 18:03:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2434 states have (on average 2.615036976170912) internal successors, (6365), 2434 states have internal predecessors, (6365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 6365 transitions. [2021-03-10 18:03:59,866 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 6365 transitions. Word has length 113 [2021-03-10 18:03:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:03:59,866 INFO L480 AbstractCegarLoop]: Abstraction has 2435 states and 6365 transitions. [2021-03-10 18:03:59,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:03:59,867 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 6365 transitions. [2021-03-10 18:03:59,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:03:59,868 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:03:59,868 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:03:59,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2021-03-10 18:03:59,869 INFO L428 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:03:59,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:03:59,869 INFO L82 PathProgramCache]: Analyzing trace with hash -704701900, now seen corresponding path program 132 times [2021-03-10 18:03:59,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:03:59,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395693141] [2021-03-10 18:03:59,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:03:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:01,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395693141] [2021-03-10 18:04:01,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:01,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:01,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839658365] [2021-03-10 18:04:01,028 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:01,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:01,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:01,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:01,028 INFO L87 Difference]: Start difference. First operand 2435 states and 6365 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:02,239 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:02,426 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:02,737 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:03,389 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-03-10 18:04:03,824 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2021-03-10 18:04:04,115 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2021-03-10 18:04:04,423 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-10 18:04:04,607 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-03-10 18:04:04,761 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-03-10 18:04:05,049 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-10 18:04:06,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:06,257 INFO L93 Difference]: Finished difference Result 3078 states and 7801 transitions. [2021-03-10 18:04:06,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-03-10 18:04:06,258 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:06,261 INFO L225 Difference]: With dead ends: 3078 [2021-03-10 18:04:06,261 INFO L226 Difference]: Without dead ends: 2872 [2021-03-10 18:04:06,262 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 4364.7ms TimeCoverageRelationStatistics Valid=646, Invalid=3014, Unknown=0, NotChecked=0, Total=3660 [2021-03-10 18:04:06,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2021-03-10 18:04:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2437. [2021-03-10 18:04:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2437 states, 2436 states have (on average 2.6141215106732347) internal successors, (6368), 2436 states have internal predecessors, (6368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2437 states to 2437 states and 6368 transitions. [2021-03-10 18:04:06,287 INFO L78 Accepts]: Start accepts. Automaton has 2437 states and 6368 transitions. Word has length 113 [2021-03-10 18:04:06,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:06,288 INFO L480 AbstractCegarLoop]: Abstraction has 2437 states and 6368 transitions. [2021-03-10 18:04:06,288 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2437 states and 6368 transitions. [2021-03-10 18:04:06,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:06,289 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:06,289 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:06,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2021-03-10 18:04:06,290 INFO L428 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:06,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:06,290 INFO L82 PathProgramCache]: Analyzing trace with hash -1709207054, now seen corresponding path program 133 times [2021-03-10 18:04:06,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:06,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050698897] [2021-03-10 18:04:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:06,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:06,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050698897] [2021-03-10 18:04:06,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:06,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 18:04:06,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847837405] [2021-03-10 18:04:06,657 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 18:04:06,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:06,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 18:04:06,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-03-10 18:04:06,657 INFO L87 Difference]: Start difference. First operand 2437 states and 6368 transitions. Second operand has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:07,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:07,524 INFO L93 Difference]: Finished difference Result 3021 states and 7654 transitions. [2021-03-10 18:04:07,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 18:04:07,525 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:07,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:07,528 INFO L225 Difference]: With dead ends: 3021 [2021-03-10 18:04:07,528 INFO L226 Difference]: Without dead ends: 3021 [2021-03-10 18:04:07,528 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 757.9ms TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2021-03-10 18:04:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3021 states. [2021-03-10 18:04:07,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3021 to 2491. [2021-03-10 18:04:07,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2490 states have (on average 2.5983935742971886) internal successors, (6470), 2490 states have internal predecessors, (6470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 6470 transitions. [2021-03-10 18:04:07,554 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 6470 transitions. Word has length 113 [2021-03-10 18:04:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:07,554 INFO L480 AbstractCegarLoop]: Abstraction has 2491 states and 6470 transitions. [2021-03-10 18:04:07,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 7.533333333333333) internal successors, (113), 15 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:07,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 6470 transitions. [2021-03-10 18:04:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:07,556 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:07,556 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:07,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2021-03-10 18:04:07,556 INFO L428 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:07,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:07,557 INFO L82 PathProgramCache]: Analyzing trace with hash 412401934, now seen corresponding path program 134 times [2021-03-10 18:04:07,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:07,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178768245] [2021-03-10 18:04:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:08,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178768245] [2021-03-10 18:04:08,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:08,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:08,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007279952] [2021-03-10 18:04:08,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:08,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:08,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:08,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=686, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:08,595 INFO L87 Difference]: Start difference. First operand 2491 states and 6470 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:09,726 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:09,905 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:10,208 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:10,785 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2021-03-10 18:04:10,986 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 64 [2021-03-10 18:04:11,164 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-10 18:04:11,685 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:04:12,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:12,629 INFO L93 Difference]: Finished difference Result 2904 states and 7428 transitions. [2021-03-10 18:04:12,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-03-10 18:04:12,630 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:12,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:12,633 INFO L225 Difference]: With dead ends: 2904 [2021-03-10 18:04:12,633 INFO L226 Difference]: Without dead ends: 2755 [2021-03-10 18:04:12,633 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 3507.6ms TimeCoverageRelationStatistics Valid=489, Invalid=2373, Unknown=0, NotChecked=0, Total=2862 [2021-03-10 18:04:12,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-03-10 18:04:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2489. [2021-03-10 18:04:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2488 states have (on average 2.5988745980707395) internal successors, (6466), 2488 states have internal predecessors, (6466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:12,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 6466 transitions. [2021-03-10 18:04:12,672 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 6466 transitions. Word has length 113 [2021-03-10 18:04:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:12,672 INFO L480 AbstractCegarLoop]: Abstraction has 2489 states and 6466 transitions. [2021-03-10 18:04:12,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:12,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 6466 transitions. [2021-03-10 18:04:12,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:12,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:12,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:12,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2021-03-10 18:04:12,675 INFO L428 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:12,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:12,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1062823582, now seen corresponding path program 135 times [2021-03-10 18:04:12,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:12,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919113894] [2021-03-10 18:04:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:13,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:13,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919113894] [2021-03-10 18:04:13,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:13,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:13,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906862434] [2021-03-10 18:04:13,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:13,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:13,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:13,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=683, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:13,657 INFO L87 Difference]: Start difference. First operand 2489 states and 6466 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:14,748 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:14,924 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:15,198 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:15,412 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-03-10 18:04:15,574 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 18:04:17,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:17,639 INFO L93 Difference]: Finished difference Result 3260 states and 8311 transitions. [2021-03-10 18:04:17,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-03-10 18:04:17,640 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:17,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:17,643 INFO L225 Difference]: With dead ends: 3260 [2021-03-10 18:04:17,643 INFO L226 Difference]: Without dead ends: 3009 [2021-03-10 18:04:17,643 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 3482.0ms TimeCoverageRelationStatistics Valid=531, Invalid=2549, Unknown=0, NotChecked=0, Total=3080 [2021-03-10 18:04:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3009 states. [2021-03-10 18:04:17,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3009 to 2687. [2021-03-10 18:04:17,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2687 states, 2686 states have (on average 2.5833953834698438) internal successors, (6939), 2686 states have internal predecessors, (6939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:17,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2687 states to 2687 states and 6939 transitions. [2021-03-10 18:04:17,671 INFO L78 Accepts]: Start accepts. Automaton has 2687 states and 6939 transitions. Word has length 113 [2021-03-10 18:04:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:17,671 INFO L480 AbstractCegarLoop]: Abstraction has 2687 states and 6939 transitions. [2021-03-10 18:04:17,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2687 states and 6939 transitions. [2021-03-10 18:04:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:17,673 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:17,673 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:17,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2021-03-10 18:04:17,674 INFO L428 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:17,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:17,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1621859256, now seen corresponding path program 136 times [2021-03-10 18:04:17,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:17,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787008137] [2021-03-10 18:04:17,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:18,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:18,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787008137] [2021-03-10 18:04:18,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:18,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:18,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093614539] [2021-03-10 18:04:18,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:18,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:18,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:18,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:18,816 INFO L87 Difference]: Start difference. First operand 2687 states and 6939 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:19,968 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:20,150 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:20,437 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:20,660 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-03-10 18:04:20,827 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 18:04:21,855 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-03-10 18:04:23,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:23,077 INFO L93 Difference]: Finished difference Result 3106 states and 7894 transitions. [2021-03-10 18:04:23,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-03-10 18:04:23,078 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:23,081 INFO L225 Difference]: With dead ends: 3106 [2021-03-10 18:04:23,081 INFO L226 Difference]: Without dead ends: 2976 [2021-03-10 18:04:23,081 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515 ImplicationChecksByTransitivity, 3721.7ms TimeCoverageRelationStatistics Valid=523, Invalid=2669, Unknown=0, NotChecked=0, Total=3192 [2021-03-10 18:04:23,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-03-10 18:04:23,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2654. [2021-03-10 18:04:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2653 states have (on average 2.5823595929136824) internal successors, (6851), 2653 states have internal predecessors, (6851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 6851 transitions. [2021-03-10 18:04:23,110 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 6851 transitions. Word has length 113 [2021-03-10 18:04:23,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:23,110 INFO L480 AbstractCegarLoop]: Abstraction has 2654 states and 6851 transitions. [2021-03-10 18:04:23,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:23,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 6851 transitions. [2021-03-10 18:04:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:23,127 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:23,127 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:23,127 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2021-03-10 18:04:23,127 INFO L428 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:23,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:23,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1230444952, now seen corresponding path program 137 times [2021-03-10 18:04:23,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:23,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874371136] [2021-03-10 18:04:23,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:24,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874371136] [2021-03-10 18:04:24,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:24,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:24,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093113966] [2021-03-10 18:04:24,254 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:24,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:24,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:24,255 INFO L87 Difference]: Start difference. First operand 2654 states and 6851 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:25,420 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:25,608 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:25,900 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:26,127 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 [2021-03-10 18:04:26,295 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2021-03-10 18:04:27,040 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-10 18:04:27,517 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2021-03-10 18:04:28,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 18:04:28,442 INFO L93 Difference]: Finished difference Result 3054 states and 7776 transitions. [2021-03-10 18:04:28,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-03-10 18:04:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-03-10 18:04:28,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 18:04:28,446 INFO L225 Difference]: With dead ends: 3054 [2021-03-10 18:04:28,446 INFO L226 Difference]: Without dead ends: 2755 [2021-03-10 18:04:28,446 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3607.0ms TimeCoverageRelationStatistics Valid=492, Invalid=2478, Unknown=0, NotChecked=0, Total=2970 [2021-03-10 18:04:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2021-03-10 18:04:28,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2500. [2021-03-10 18:04:28,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 2499 states have (on average 2.5918367346938775) internal successors, (6477), 2499 states have internal predecessors, (6477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:28,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 6477 transitions. [2021-03-10 18:04:28,489 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 6477 transitions. Word has length 113 [2021-03-10 18:04:28,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 18:04:28,489 INFO L480 AbstractCegarLoop]: Abstraction has 2500 states and 6477 transitions. [2021-03-10 18:04:28,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:28,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 6477 transitions. [2021-03-10 18:04:28,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-03-10 18:04:28,491 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 18:04:28,491 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 18:04:28,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2021-03-10 18:04:28,491 INFO L428 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 18:04:28,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 18:04:28,491 INFO L82 PathProgramCache]: Analyzing trace with hash -2037718616, now seen corresponding path program 138 times [2021-03-10 18:04:28,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 18:04:28,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465377813] [2021-03-10 18:04:28,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 18:04:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 18:04:29,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 18:04:29,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465377813] [2021-03-10 18:04:29,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 18:04:29,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-03-10 18:04:29,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326556833] [2021-03-10 18:04:29,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-03-10 18:04:29,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 18:04:29,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-03-10 18:04:29,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=690, Unknown=0, NotChecked=0, Total=756 [2021-03-10 18:04:29,598 INFO L87 Difference]: Start difference. First operand 2500 states and 6477 transitions. Second operand has 28 states, 28 states have (on average 4.035714285714286) internal successors, (113), 28 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 18:04:30,766 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2021-03-10 18:04:30,956 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 55 [2021-03-10 18:04:31,253 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2021-03-10 18:04:31,471 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 61 Received shutdown request... [2021-03-10 18:04:31,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 18:04:31,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2021-03-10 18:04:31,686 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-10 18:04:31,690 WARN L224 ceAbstractionStarter]: Timeout [2021-03-10 18:04:31,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 06:04:31 BasicIcfg [2021-03-10 18:04:31,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 18:04:31,691 INFO L168 Benchmark]: Toolchain (without parser) took 743178.95 ms. Allocated memory was 348.1 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 309.8 MB in the beginning and 838.8 MB in the end (delta: -529.0 MB). Peak memory consumption was 676.3 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 348.1 MB. Free memory was 329.4 MB in the beginning and 329.3 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.34 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 300.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.19 ms. Allocated memory is still 348.1 MB. Free memory was 300.1 MB in the beginning and 296.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: Boogie Preprocessor took 66.70 ms. Allocated memory is still 348.1 MB. Free memory was 296.9 MB in the beginning and 293.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: RCFGBuilder took 663.98 ms. Allocated memory is still 348.1 MB. Free memory was 293.8 MB in the beginning and 246.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L168 Benchmark]: TraceAbstraction took 741446.93 ms. Allocated memory was 348.1 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 245.6 MB in the beginning and 838.8 MB in the end (delta: -593.3 MB). Peak memory consumption was 610.5 MB. Max. memory is 16.0 GB. [2021-03-10 18:04:31,691 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 348.1 MB. Free memory was 329.4 MB in the beginning and 329.3 MB in the end (delta: 71.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 917.34 ms. Allocated memory is still 348.1 MB. Free memory was 309.2 MB in the beginning and 300.1 MB in the end (delta: 9.1 MB). Peak memory consumption was 83.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 74.19 ms. Allocated memory is still 348.1 MB. Free memory was 300.1 MB in the beginning and 296.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.70 ms. Allocated memory is still 348.1 MB. Free memory was 296.9 MB in the beginning and 293.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 663.98 ms. Allocated memory is still 348.1 MB. Free memory was 293.8 MB in the beginning and 246.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 741446.93 ms. Allocated memory was 348.1 MB in the beginning and 1.6 GB in the end (delta: 1.2 GB). Free memory was 245.6 MB in the beginning and 838.8 MB in the end (delta: -593.3 MB). Peak memory consumption was 610.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 1693]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable (line 1693). Cancelled while BasicCegarLoop was constructing difference of abstraction (2500states) and FLOYD_HOARE automaton (currently 17 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (678 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 741307.2ms, OverallIterations: 183, TraceHistogramMax: 1, EmptinessCheckTime: 623.1ms, AutomataDifference: 571562.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 392.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33656 SDtfs, 153647 SDslu, 365787 SDs, 0 SdLazy, 221759 SolverSat, 15679 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 122174.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9763 GetRequests, 594 SyntacticMatches, 647 SemanticMatches, 8522 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73540 ImplicationChecksByTransitivity, 498958.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8013occurred in iteration=4, InterpolantAutomatonStates: 5300, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 8369.0ms AutomataMinimizationTime, 182 MinimizatonAttempts, 163513 StatesRemovedByMinimization, 179 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 337.6ms SsaConstructionTime, 2613.8ms SatisfiabilityAnalysisTime, 155769.9ms InterpolantComputationTime, 20152 NumberOfCodeBlocks, 20152 NumberOfCodeBlocksAsserted, 183 NumberOfCheckSat, 19969 ConstructedInterpolants, 0 QuantifiedInterpolants, 414169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 183 InterpolantComputations, 183 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