/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:12:49,329 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:12:49,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:12:49,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:12:49,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:12:49,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:12:49,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:12:49,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:12:49,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:12:49,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:12:49,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:12:49,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:12:49,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:12:49,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:12:49,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:12:49,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:12:49,421 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:12:49,422 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:12:49,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:12:49,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:12:49,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:12:49,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:12:49,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:12:49,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:12:49,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:12:49,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:12:49,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:12:49,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:12:49,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:12:49,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:12:49,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:12:49,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:12:49,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:12:49,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:12:49,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:12:49,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:12:49,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:12:49,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:12:49,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:12:49,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:12:49,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:12:49,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:12:49,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:12:49,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:12:49,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:12:49,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:12:49,483 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:12:49,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:12:49,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:12:49,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:12:49,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:12:49,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:12:49,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:12:49,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:12:49,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:12:49,485 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:12:49,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:12:49,486 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:12:49,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:12:49,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:12:49,486 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:12:49,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:12:49,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:12:49,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:12:49,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:12:49,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:12:49,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:12:49,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:12:49,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:12:49,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:12:49,489 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:12:49,489 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:12:49,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:12:50,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:12:50,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:12:50,011 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:12:50,011 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:12:50,013 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-21 11:12:50,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1be14224a/5dc8fccc424942508aef1f21753fb160/FLAGf8727b7d0 [2020-09-21 11:12:50,806 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:12:50,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-09-21 11:12:50,821 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1be14224a/5dc8fccc424942508aef1f21753fb160/FLAGf8727b7d0 [2020-09-21 11:12:50,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1be14224a/5dc8fccc424942508aef1f21753fb160 [2020-09-21 11:12:51,009 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:12:51,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:12:51,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:51,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:12:51,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:12:51,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:51,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfafcce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51, skipping insertion in model container [2020-09-21 11:12:51,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:12:50" (1/1) ... [2020-09-21 11:12:51,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:12:51,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:12:51,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:51,573 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:12:51,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:12:51,710 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:12:51,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51 WrapperNode [2020-09-21 11:12:51,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:12:51,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:12:51,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:12:51,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:12:51,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... [2020-09-21 11:12:51,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:12:51,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:12:51,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:12:51,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:12:51,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-21 11:12:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:12:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:12:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:12:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:12:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:12:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:12:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:12:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:12:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:12:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:12:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:12:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:12:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:12:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:12:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:12:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:12:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:12:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:12:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:12:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:12:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:12:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:12:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:12:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:12:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:12:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:12:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:12:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:12:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:51,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:12:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:12:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:12:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:12:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:12:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:12:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:12:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-21 11:12:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:12:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:12:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:12:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:12:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:12:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:12:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:12:53,053 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:12:53,053 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:12:53,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:53 BoogieIcfgContainer [2020-09-21 11:12:53,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:12:53,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:12:53,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:12:53,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:12:53,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:12:50" (1/3) ... [2020-09-21 11:12:53,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd98988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:53, skipping insertion in model container [2020-09-21 11:12:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:12:51" (2/3) ... [2020-09-21 11:12:53,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd98988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:12:53, skipping insertion in model container [2020-09-21 11:12:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:12:53" (3/3) ... [2020-09-21 11:12:53,069 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-09-21 11:12:53,080 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:12:53,091 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:12:53,112 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:12:53,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:12:53,140 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:12:53,140 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:12:53,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:12:53,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:12:53,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:12:53,140 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:12:53,141 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:12:53,171 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-09-21 11:12:53,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:12:53,185 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:53,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:53,189 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:53,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:53,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1144967718, now seen corresponding path program 1 times [2020-09-21 11:12:53,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:53,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595590273] [2020-09-21 11:12:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,513 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,513 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:12:53,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:12:53,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:12:53,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:53,923 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:53,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:53,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:53,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:53,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:53,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:53,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:53,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:53,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:53,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:53,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:54,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,029 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,030 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:54,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,036 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,036 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,037 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,037 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:54,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:54,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:54,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:54,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:12:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,058 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,059 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:12:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:54,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:54,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:54,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:54,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:54,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:54,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:54,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:54,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:54,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:54,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:54,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:12:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:54,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595590273] [2020-09-21 11:12:54,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:54,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:12:54,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689431898] [2020-09-21 11:12:54,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:12:54,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:54,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:12:54,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:54,124 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 3 states. [2020-09-21 11:12:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:55,312 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2020-09-21 11:12:55,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:12:55,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:12:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:55,333 INFO L225 Difference]: With dead ends: 293 [2020-09-21 11:12:55,333 INFO L226 Difference]: Without dead ends: 158 [2020-09-21 11:12:55,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:12:55,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-21 11:12:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-09-21 11:12:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-09-21 11:12:55,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-09-21 11:12:55,462 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2020-09-21 11:12:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:55,463 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-09-21 11:12:55,463 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:12:55,463 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-09-21 11:12:55,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:12:55,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:55,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:55,470 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:12:55,471 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:55,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:55,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1860542733, now seen corresponding path program 1 times [2020-09-21 11:12:55,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:55,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493325627] [2020-09-21 11:12:55,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:55,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:55,595 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:55,596 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:55,596 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:55,596 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:55,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:12:55,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:55,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:12:55,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:55,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:12:55,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:12:55,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,000 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:56,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,012 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,012 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,012 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,013 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,051 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,055 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,056 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,061 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,061 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,061 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,066 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,067 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,067 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,067 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:56,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:56,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:12:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,072 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,072 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,072 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:12:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:56,077 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:56,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:56,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:56,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:56,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493325627] [2020-09-21 11:12:56,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:56,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:56,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308673039] [2020-09-21 11:12:56,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:56,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:56,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:56,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:56,092 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 4 states. [2020-09-21 11:12:56,534 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:12:57,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:57,458 INFO L93 Difference]: Finished difference Result 226 states and 273 transitions. [2020-09-21 11:12:57,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:57,459 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:12:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:57,465 INFO L225 Difference]: With dead ends: 226 [2020-09-21 11:12:57,465 INFO L226 Difference]: Without dead ends: 142 [2020-09-21 11:12:57,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-21 11:12:57,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 117. [2020-09-21 11:12:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-09-21 11:12:57,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-09-21 11:12:57,502 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2020-09-21 11:12:57,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:57,503 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-09-21 11:12:57,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:57,503 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-09-21 11:12:57,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:12:57,505 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:57,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:57,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:12:57,506 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:57,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:57,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1943742618, now seen corresponding path program 1 times [2020-09-21 11:12:57,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:57,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330964622] [2020-09-21 11:12:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:57,637 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:12:57,638 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:57,638 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:57,638 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:57,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:12:57,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:12:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:57,958 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:12:57,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:12:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,062 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:12:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:12:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:12:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,100 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,101 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:12:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,106 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:12:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:12:58,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:12:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,119 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,119 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,119 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:12:58,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:12:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:12:58,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:12:58,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:12:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,124 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,125 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,125 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,125 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:12:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:58,130 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:58,130 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:58,131 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:58,131 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:58,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:12:58,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:58,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:12:58,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:12:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:58,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:12:58,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:12:58,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:12:58,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330964622] [2020-09-21 11:12:58,141 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:12:58,141 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:12:58,141 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144797340] [2020-09-21 11:12:58,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:12:58,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:12:58,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:12:58,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:12:58,143 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 4 states. [2020-09-21 11:12:58,492 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:12:59,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:12:59,381 INFO L93 Difference]: Finished difference Result 235 states and 287 transitions. [2020-09-21 11:12:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:12:59,382 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:12:59,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:12:59,385 INFO L225 Difference]: With dead ends: 235 [2020-09-21 11:12:59,385 INFO L226 Difference]: Without dead ends: 142 [2020-09-21 11:12:59,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:12:59,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-09-21 11:12:59,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 117. [2020-09-21 11:12:59,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-09-21 11:12:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2020-09-21 11:12:59,419 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 51 [2020-09-21 11:12:59,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:12:59,420 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2020-09-21 11:12:59,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:12:59,420 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2020-09-21 11:12:59,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-21 11:12:59,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:12:59,422 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:12:59,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:12:59,423 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:12:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:12:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1699182139, now seen corresponding path program 1 times [2020-09-21 11:12:59,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:12:59,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064864036] [2020-09-21 11:12:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:12:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:12:59,844 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:12:59,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-21 11:12:59,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:12:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-21 11:12:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:12:59,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-21 11:12:59,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,240 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:00,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,314 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,315 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,315 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,315 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:00,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,360 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,360 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:00,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:00,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,366 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,367 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:00,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:00,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,372 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,373 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:00,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:00,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,379 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:00,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:13:00,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:00,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-21 11:13:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:00,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:00,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,480 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,480 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,480 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,481 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:00,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:00,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:00,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:13:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,489 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,489 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:00,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:00,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:00,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:13:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:00,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:00,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:00,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:00,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:00,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:00,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:00,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:00,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:00,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:00,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:00,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:00,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:00,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064864036] [2020-09-21 11:13:00,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:00,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:00,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860527765] [2020-09-21 11:13:00,514 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:00,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:00,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:00,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:00,515 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 7 states. [2020-09-21 11:13:00,985 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:02,259 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:03,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:03,020 INFO L93 Difference]: Finished difference Result 327 states and 403 transitions. [2020-09-21 11:13:03,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:03,020 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-09-21 11:13:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:03,023 INFO L225 Difference]: With dead ends: 327 [2020-09-21 11:13:03,024 INFO L226 Difference]: Without dead ends: 234 [2020-09-21 11:13:03,025 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-09-21 11:13:03,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 193. [2020-09-21 11:13:03,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-09-21 11:13:03,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 219 transitions. [2020-09-21 11:13:03,075 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 219 transitions. Word has length 64 [2020-09-21 11:13:03,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:03,075 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 219 transitions. [2020-09-21 11:13:03,075 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 219 transitions. [2020-09-21 11:13:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-09-21 11:13:03,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:03,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:03,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:03,078 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:03,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:03,078 INFO L82 PathProgramCache]: Analyzing trace with hash 906371281, now seen corresponding path program 1 times [2020-09-21 11:13:03,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:03,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1765821433] [2020-09-21 11:13:03,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,477 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:03,477 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,477 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:03,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-21 11:13:03,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:03,827 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:03,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,902 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,902 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,902 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-21 11:13:03,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:03,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,945 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:03,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,952 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,952 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,953 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,953 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,960 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:03,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:03,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:03,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,968 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,969 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:03,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:03,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:03,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:03,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:03,994 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:03,994 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:03,994 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:03,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:03,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:03,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:03,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:03,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-21 11:13:03,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:04,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:04,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,016 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,016 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,016 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,016 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:04,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,024 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,024 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:04,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:04,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 11:13:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,043 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:04,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:04,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:04,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:04,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:13:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:04,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:04,066 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:04,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:04,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:04,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:04,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1765821433] [2020-09-21 11:13:04,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:04,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:04,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968948875] [2020-09-21 11:13:04,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:04,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:04,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:04,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:04,092 INFO L87 Difference]: Start difference. First operand 193 states and 219 transitions. Second operand 8 states. [2020-09-21 11:13:04,758 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:06,074 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:06,455 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:06,768 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:07,051 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:07,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:07,939 INFO L93 Difference]: Finished difference Result 505 states and 634 transitions. [2020-09-21 11:13:07,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:07,940 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-09-21 11:13:07,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:07,947 INFO L225 Difference]: With dead ends: 505 [2020-09-21 11:13:07,948 INFO L226 Difference]: Without dead ends: 336 [2020-09-21 11:13:07,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-21 11:13:08,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 300. [2020-09-21 11:13:08,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-21 11:13:08,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 349 transitions. [2020-09-21 11:13:08,037 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 349 transitions. Word has length 78 [2020-09-21 11:13:08,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:08,038 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 349 transitions. [2020-09-21 11:13:08,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 349 transitions. [2020-09-21 11:13:08,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:13:08,040 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:08,040 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:08,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:08,041 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:08,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:08,041 INFO L82 PathProgramCache]: Analyzing trace with hash -76215413, now seen corresponding path program 1 times [2020-09-21 11:13:08,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:08,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1150925204] [2020-09-21 11:13:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:13:08,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 505 [2020-09-21 11:13:08,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:08,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-21 11:13:08,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,963 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:08,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,048 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,048 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,049 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-21 11:13:09,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:09,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,091 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,092 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,092 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,092 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:09,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:09,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,104 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,104 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,104 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,105 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:09,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:09,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:09,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:09,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:09,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,185 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,186 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,186 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,187 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:09,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:09,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:09,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:09,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,219 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,219 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,220 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:09,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:09,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,235 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:09,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:09,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:09,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:09,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,282 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:09,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:09,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:09,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:13:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,292 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:09,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:09,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:13:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,303 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:09,303 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,304 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,304 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:09,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:09,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:09,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:09,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:09,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1150925204] [2020-09-21 11:13:09,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:09,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:09,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540714814] [2020-09-21 11:13:09,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:09,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:09,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:09,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:09,328 INFO L87 Difference]: Start difference. First operand 300 states and 349 transitions. Second operand 9 states. [2020-09-21 11:13:09,875 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:10,457 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:12,015 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:13,646 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:14,903 INFO L93 Difference]: Finished difference Result 826 states and 1029 transitions. [2020-09-21 11:13:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:14,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:13:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:14,910 INFO L225 Difference]: With dead ends: 826 [2020-09-21 11:13:14,910 INFO L226 Difference]: Without dead ends: 646 [2020-09-21 11:13:14,911 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=138, Invalid=414, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:13:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2020-09-21 11:13:15,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 601. [2020-09-21 11:13:15,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-21 11:13:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 717 transitions. [2020-09-21 11:13:15,027 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 717 transitions. Word has length 82 [2020-09-21 11:13:15,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:15,027 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 717 transitions. [2020-09-21 11:13:15,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:15,027 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 717 transitions. [2020-09-21 11:13:15,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:13:15,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:15,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:15,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:15,030 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:15,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:15,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2035074956, now seen corresponding path program 1 times [2020-09-21 11:13:15,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:15,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770131104] [2020-09-21 11:13:15,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,077 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,078 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,078 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,078 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:13:15,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,436 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:15,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:15,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,489 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,489 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,490 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,490 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:15,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,501 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,501 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,502 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,502 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,508 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,509 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,509 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,541 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,542 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,542 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,542 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:15,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:15,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:15,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,558 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:15,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:15,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,571 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,571 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:15,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:15,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:15,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:15,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,610 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,610 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:13:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,617 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,617 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,617 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,618 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:13:15,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,622 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,622 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:15,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:15,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770131104] [2020-09-21 11:13:15,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:15,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:15,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993791528] [2020-09-21 11:13:15,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:15,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:15,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:15,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:15,638 INFO L87 Difference]: Start difference. First operand 601 states and 717 transitions. Second operand 8 states. [2020-09-21 11:13:16,526 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:16,813 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:17,121 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:18,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:18,262 INFO L93 Difference]: Finished difference Result 1120 states and 1379 transitions. [2020-09-21 11:13:18,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:18,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 82 [2020-09-21 11:13:18,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:18,268 INFO L225 Difference]: With dead ends: 1120 [2020-09-21 11:13:18,268 INFO L226 Difference]: Without dead ends: 643 [2020-09-21 11:13:18,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:18,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-21 11:13:18,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 601. [2020-09-21 11:13:18,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2020-09-21 11:13:18,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 716 transitions. [2020-09-21 11:13:18,397 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 716 transitions. Word has length 82 [2020-09-21 11:13:18,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:18,397 INFO L479 AbstractCegarLoop]: Abstraction has 601 states and 716 transitions. [2020-09-21 11:13:18,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:18,398 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 716 transitions. [2020-09-21 11:13:18,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-21 11:13:18,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:18,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:18,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:18,400 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:18,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:18,400 INFO L82 PathProgramCache]: Analyzing trace with hash -873688946, now seen corresponding path program 1 times [2020-09-21 11:13:18,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:18,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [753964102] [2020-09-21 11:13:18,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:18,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -58 [2020-09-21 11:13:18,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 58 [2020-09-21 11:13:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-09-21 11:13:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:18,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,708 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,718 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,718 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,718 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,719 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,750 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,750 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,750 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,776 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,776 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,776 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,776 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,801 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,802 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,802 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,802 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-09-21 11:13:18,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,817 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:18,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:18,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:18,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:18,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:18,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:18,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,882 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:18,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,887 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,888 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,888 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:18,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-09-21 11:13:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,894 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,894 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,894 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-09-21 11:13:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:18,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [753964102] [2020-09-21 11:13:18,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:18,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:18,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116770829] [2020-09-21 11:13:18,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:18,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:18,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:18,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:18,914 INFO L87 Difference]: Start difference. First operand 601 states and 716 transitions. Second operand 9 states. [2020-09-21 11:13:20,007 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,330 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:20,709 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:21,011 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:22,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:22,152 INFO L93 Difference]: Finished difference Result 1194 states and 1465 transitions. [2020-09-21 11:13:22,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:22,153 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-09-21 11:13:22,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:22,156 INFO L225 Difference]: With dead ends: 1194 [2020-09-21 11:13:22,156 INFO L226 Difference]: Without dead ends: 617 [2020-09-21 11:13:22,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:13:22,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2020-09-21 11:13:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 580. [2020-09-21 11:13:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-09-21 11:13:22,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 686 transitions. [2020-09-21 11:13:22,293 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 686 transitions. Word has length 82 [2020-09-21 11:13:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:22,294 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 686 transitions. [2020-09-21 11:13:22,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 686 transitions. [2020-09-21 11:13:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 11:13:22,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:22,299 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:22,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:22,300 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:22,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:22,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1216403873, now seen corresponding path program 1 times [2020-09-21 11:13:22,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:22,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [323537467] [2020-09-21 11:13:22,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,357 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:22,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-21 11:13:22,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-21 11:13:22,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,637 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,647 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,681 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,681 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:22,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,685 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,713 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,713 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,714 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,714 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:22,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,747 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,747 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,748 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,748 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:22,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:22,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:22,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:22,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:22,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,772 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,772 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,772 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,772 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:22,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,782 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,782 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,791 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,791 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,791 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:22,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:13:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:22,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:22,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:22,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:13:22,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [323537467] [2020-09-21 11:13:22,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:22,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:22,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301368177] [2020-09-21 11:13:22,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:22,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:22,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:22,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:22,824 INFO L87 Difference]: Start difference. First operand 580 states and 686 transitions. Second operand 9 states. [2020-09-21 11:13:24,098 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:24,786 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:25,152 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:25,478 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:25,787 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:27,005 INFO L93 Difference]: Finished difference Result 1092 states and 1332 transitions. [2020-09-21 11:13:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:13:27,005 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 11:13:27,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:27,011 INFO L225 Difference]: With dead ends: 1092 [2020-09-21 11:13:27,011 INFO L226 Difference]: Without dead ends: 641 [2020-09-21 11:13:27,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=189, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:13:27,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-09-21 11:13:27,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 574. [2020-09-21 11:13:27,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-21 11:13:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 678 transitions. [2020-09-21 11:13:27,130 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 678 transitions. Word has length 83 [2020-09-21 11:13:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:27,133 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 678 transitions. [2020-09-21 11:13:27,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 678 transitions. [2020-09-21 11:13:27,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-21 11:13:27,136 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:27,136 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:27,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:27,137 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:27,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:27,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1074748620, now seen corresponding path program 1 times [2020-09-21 11:13:27,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:27,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1869728531] [2020-09-21 11:13:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,211 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:13:27,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:27,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,478 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:27,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,487 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,514 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,514 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,514 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,515 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:27,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,518 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,518 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,519 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,519 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,522 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,523 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,523 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:13:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:27,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:13:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:27,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,583 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,584 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:27,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:27,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,600 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:27,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:27,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:27,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:27,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,646 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,647 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,647 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,647 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:27,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:27,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:27,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:27,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:27,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,696 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,696 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,696 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,697 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:13:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:27,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:27,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,712 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,712 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,712 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,713 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:13:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,746 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,746 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,746 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,747 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:13:27,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:13:27,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:27,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,760 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,761 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,761 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,761 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:13:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,768 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,768 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,768 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,768 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:27,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 11:13:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,774 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,774 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,775 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,775 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:27,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 11:13:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:27,781 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:27,781 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:27,781 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:27,782 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:27,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:27,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:27,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:27,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:27,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:27,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:27,811 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1869728531] [2020-09-21 11:13:27,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:27,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:27,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608623324] [2020-09-21 11:13:27,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:27,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:27,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:27,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:27,813 INFO L87 Difference]: Start difference. First operand 574 states and 678 transitions. Second operand 10 states. [2020-09-21 11:13:28,760 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:29,066 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:29,368 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:29,702 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:30,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:30,684 INFO L93 Difference]: Finished difference Result 1155 states and 1398 transitions. [2020-09-21 11:13:30,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:30,684 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 126 [2020-09-21 11:13:30,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:30,689 INFO L225 Difference]: With dead ends: 1155 [2020-09-21 11:13:30,689 INFO L226 Difference]: Without dead ends: 605 [2020-09-21 11:13:30,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:30,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-09-21 11:13:30,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 574. [2020-09-21 11:13:30,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-09-21 11:13:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 676 transitions. [2020-09-21 11:13:30,799 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 676 transitions. Word has length 126 [2020-09-21 11:13:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:30,799 INFO L479 AbstractCegarLoop]: Abstraction has 574 states and 676 transitions. [2020-09-21 11:13:30,799 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 676 transitions. [2020-09-21 11:13:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-21 11:13:30,803 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:30,803 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:30,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:30,804 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:30,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1101814222, now seen corresponding path program 1 times [2020-09-21 11:13:30,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:30,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849836394] [2020-09-21 11:13:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:30,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:30,873 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -48 [2020-09-21 11:13:30,873 FATAL L256 erpolLogProxyWrapper]: Difference in width: 48 [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:30,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-09-21 11:13:30,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:30,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:31,188 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:31,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,200 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,201 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,201 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,243 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,243 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:31,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:31,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,252 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,252 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,252 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:31,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,264 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,265 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,265 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:31,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:13:31,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-21 11:13:31,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:31,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,326 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,327 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,327 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:13:31,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:31,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-21 11:13:31,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:31,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:31,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:31,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:31,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,372 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:31,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:31,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:31,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:31,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,416 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,416 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,416 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:31,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:31,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:31,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:31,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:31,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:31,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:13:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:31,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:31,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:31,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,464 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,464 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,464 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:31,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-21 11:13:31,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,500 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,500 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,500 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,501 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:13:31,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:13:31,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:31,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,509 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,509 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,510 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,510 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:31,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,516 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,517 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,517 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,517 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:13:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,524 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,524 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,524 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:31,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:31,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:31,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-09-21 11:13:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,529 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:31,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-21 11:13:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:31,536 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:31,536 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:31,536 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:31,537 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:31,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:31,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:31,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:31,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:31,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:31,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:31,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849836394] [2020-09-21 11:13:31,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:31,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-21 11:13:31,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834923477] [2020-09-21 11:13:31,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:31,575 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:31,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:31,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:31,576 INFO L87 Difference]: Start difference. First operand 574 states and 676 transitions. Second operand 9 states. [2020-09-21 11:13:32,893 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:33,273 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:33,550 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:34,479 INFO L93 Difference]: Finished difference Result 1066 states and 1278 transitions. [2020-09-21 11:13:34,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:34,480 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 126 [2020-09-21 11:13:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:34,484 INFO L225 Difference]: With dead ends: 1066 [2020-09-21 11:13:34,484 INFO L226 Difference]: Without dead ends: 516 [2020-09-21 11:13:34,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:34,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-21 11:13:34,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 497. [2020-09-21 11:13:34,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-09-21 11:13:34,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 578 transitions. [2020-09-21 11:13:34,577 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 578 transitions. Word has length 126 [2020-09-21 11:13:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:34,577 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 578 transitions. [2020-09-21 11:13:34,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 578 transitions. [2020-09-21 11:13:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-09-21 11:13:34,579 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:34,579 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:34,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:13:34,580 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:34,580 INFO L82 PathProgramCache]: Analyzing trace with hash -2074968439, now seen corresponding path program 1 times [2020-09-21 11:13:34,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:34,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801028866] [2020-09-21 11:13:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:34,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-09-21 11:13:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,449 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:35,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,512 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:13:35,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:35,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:35,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,557 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:35,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,563 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,564 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,564 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,564 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:35,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:35,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-09-21 11:13:35,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-21 11:13:35,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,633 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,633 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,633 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,633 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-21 11:13:35,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,644 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,645 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,645 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,645 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:35,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,650 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,651 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,651 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,651 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:35,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-09-21 11:13:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,662 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:35,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,668 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-21 11:13:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,674 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,674 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:35,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-09-21 11:13:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:13:35,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:13:35,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:13:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:35,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:35,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,740 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,740 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,740 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,740 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:35,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:35,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:35,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,779 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,779 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,779 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,780 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:35,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:35,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:35,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-09-21 11:13:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,804 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,804 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,804 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:35,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:35,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 11:13:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,810 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,810 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,810 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,810 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:35,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-21 11:13:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:35,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:35,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:35,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:35,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:35,847 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-09-21 11:13:35,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801028866] [2020-09-21 11:13:35,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:35,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-21 11:13:35,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917837185] [2020-09-21 11:13:35,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 11:13:35,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:35,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 11:13:35,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:13:35,852 INFO L87 Difference]: Start difference. First operand 497 states and 578 transitions. Second operand 13 states. [2020-09-21 11:13:36,635 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:37,439 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:39,500 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:39,849 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:40,173 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:40,483 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:40,833 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:41,146 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:41,448 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:41,761 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:42,120 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:42,428 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:43,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:43,169 INFO L93 Difference]: Finished difference Result 1285 states and 1546 transitions. [2020-09-21 11:13:43,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:43,170 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 130 [2020-09-21 11:13:43,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:43,175 INFO L225 Difference]: With dead ends: 1285 [2020-09-21 11:13:43,175 INFO L226 Difference]: Without dead ends: 812 [2020-09-21 11:13:43,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=207, Invalid=785, Unknown=0, NotChecked=0, Total=992 [2020-09-21 11:13:43,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2020-09-21 11:13:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 786. [2020-09-21 11:13:43,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2020-09-21 11:13:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 902 transitions. [2020-09-21 11:13:43,312 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 902 transitions. Word has length 130 [2020-09-21 11:13:43,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:43,313 INFO L479 AbstractCegarLoop]: Abstraction has 786 states and 902 transitions. [2020-09-21 11:13:43,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 11:13:43,313 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 902 transitions. [2020-09-21 11:13:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-09-21 11:13:43,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:43,315 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:43,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:13:43,316 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:43,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:43,316 INFO L82 PathProgramCache]: Analyzing trace with hash 106896037, now seen corresponding path program 1 times [2020-09-21 11:13:43,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:43,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231606859] [2020-09-21 11:13:43,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,370 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,370 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,370 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,370 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:43,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-21 11:13:43,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-21 11:13:43,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,743 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:43,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,751 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,751 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,752 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,752 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9