/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --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_spec1_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:07:32,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:07:32,720 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:07:32,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:07:32,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:07:32,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:07:32,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:07:32,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:07:32,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:07:32,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:07:32,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:07:32,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:07:32,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:07:32,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:07:32,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:07:32,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:07:32,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:07:32,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:07:32,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:07:32,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:07:32,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:07:32,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:07:32,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:07:32,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:07:32,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:07:32,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:07:32,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:07:32,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:07:32,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:07:32,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:07:32,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:07:32,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:07:32,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:07:32,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:07:32,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:07:32,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:07:32,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:07:32,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:07:32,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:07:32,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:07:32,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:07:32,790 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 [2020-09-24 20:07:32,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:07:32,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:07:32,819 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:07:32,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:07:32,820 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:07:32,820 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:07:32,820 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:07:32,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:07:32,821 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:07:32,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:07:32,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:07:32,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:07:32,822 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:07:32,822 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:07:32,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:07:32,822 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:07:32,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:07:32,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:07:32,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:07:32,823 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:07:32,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:07:32,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:07:32,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:07:32,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:07:32,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:07:32,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:07:32,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:07:32,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:07:32,825 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:07:32,825 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.rcfgbuilder: Size of a code block -> SingleStatement 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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;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;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:07:33,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:07:33,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:07:33,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:07:33,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:07:33,318 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:07:33,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-24 20:07:33,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4db14e25/4c782d2012f24284951ca1406e28181f/FLAG2da82c679 [2020-09-24 20:07:33,932 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:07:33,933 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product39.cil.c [2020-09-24 20:07:33,947 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4db14e25/4c782d2012f24284951ca1406e28181f/FLAG2da82c679 [2020-09-24 20:07:34,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4db14e25/4c782d2012f24284951ca1406e28181f [2020-09-24 20:07:34,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:07:34,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:07:34,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:34,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:07:34,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:07:34,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:34,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34, skipping insertion in model container [2020-09-24 20:07:34,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:34,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:07:34,316 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:07:34,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:34,800 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:07:34,925 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:07:34,966 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:07:34,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34 WrapperNode [2020-09-24 20:07:34,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:07:34,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:07:34,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:07:34,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:07:34,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:34,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (1/1) ... [2020-09-24 20:07:35,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:07:35,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:07:35,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:07:35,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:07:35,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (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 [2020-09-24 20:07:35,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:07:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:07:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:35,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:07:35,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:07:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:07:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:07:35,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:07:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:07:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:07:35,163 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:07:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:07:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:07:35,164 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:07:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:07:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:07:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:07:35,165 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:07:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:07:35,166 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:07:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:07:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:07:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:07:35,167 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:07:35,168 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:07:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:07:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:07:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:07:35,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:07:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:07:35,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:07:35,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:07:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:07:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:07:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:07:35,171 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:07:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:07:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:07:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:07:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:07:35,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:07:35,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 20:07:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:07:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:07:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:07:35,174 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:07:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:07:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:07:35,175 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:07:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:07:35,176 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:07:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:07:35,177 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:07:35,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:07:35,179 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:07:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:07:35,180 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:07:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:07:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:07:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:07:35,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:07:36,272 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:07:36,273 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:07:36,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:36 BoogieIcfgContainer [2020-09-24 20:07:36,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:07:36,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:07:36,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:07:36,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:07:36,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:07:34" (1/3) ... [2020-09-24 20:07:36,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f2c513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:36, skipping insertion in model container [2020-09-24 20:07:36,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:07:34" (2/3) ... [2020-09-24 20:07:36,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f2c513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:07:36, skipping insertion in model container [2020-09-24 20:07:36,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:07:36" (3/3) ... [2020-09-24 20:07:36,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2020-09-24 20:07:36,301 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:07:36,313 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:07:36,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:07:36,372 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:07:36,372 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:07:36,372 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:07:36,372 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:07:36,372 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:07:36,372 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:07:36,372 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:07:36,373 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:07:36,405 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states. [2020-09-24 20:07:36,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 20:07:36,428 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:36,430 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:36,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:36,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1299916906, now seen corresponding path program 1 times [2020-09-24 20:07:36,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:36,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356452021] [2020-09-24 20:07:36,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:36,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:37,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:38,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:39,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:41,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:41,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 20:07:41,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:07:41,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 20:07:41,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:07:41,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:07:41,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 20:07:41,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:07:42,419 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:42,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-24 20:07:42,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:07:42,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:42,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:42,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:42,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:42,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:42,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:42,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:42,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:42,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:42,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:42,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:42,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:07:42,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:42,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:42,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:42,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:42,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:42,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:42,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:42,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:42,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:42,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:07:42,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:42,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:42,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:42,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 20:07:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:42,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:42,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:42,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:42,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:42,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:07:42,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:07:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:07:42,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:07:42,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:42,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:42,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356452021] [2020-09-24 20:07:42,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:42,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:07:42,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109252995] [2020-09-24 20:07:42,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:07:42,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:42,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:07:42,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:07:42,991 INFO L87 Difference]: Start difference. First operand 307 states. Second operand 8 states. [2020-09-24 20:07:43,599 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:44,549 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:45,153 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-24 20:07:45,554 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:45,920 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:46,244 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:07:46,987 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:47,323 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:47,870 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:49,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:07:49,253 INFO L93 Difference]: Finished difference Result 648 states and 795 transitions. [2020-09-24 20:07:49,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:07:49,256 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 20:07:49,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:07:49,280 INFO L225 Difference]: With dead ends: 648 [2020-09-24 20:07:49,280 INFO L226 Difference]: Without dead ends: 435 [2020-09-24 20:07:49,287 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:07:49,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-09-24 20:07:49,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 377. [2020-09-24 20:07:49,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2020-09-24 20:07:49,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 421 transitions. [2020-09-24 20:07:49,429 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 421 transitions. Word has length 142 [2020-09-24 20:07:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:07:49,430 INFO L479 AbstractCegarLoop]: Abstraction has 377 states and 421 transitions. [2020-09-24 20:07:49,430 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:07:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 421 transitions. [2020-09-24 20:07:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-24 20:07:49,436 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:07:49,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:07:49,437 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:07:49,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:07:49,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:07:49,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1602205180, now seen corresponding path program 1 times [2020-09-24 20:07:49,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:07:49,438 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427284750] [2020-09-24 20:07:49,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:07:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:50,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:51,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:54,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:54,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-09-24 20:07:54,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 20:07:54,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-24 20:07:54,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:07:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 20:07:54,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-09-24 20:07:54,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:54,913 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:07:54,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:07:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:07:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-09-24 20:07:55,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 20:07:55,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:07:55,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:07:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:55,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:07:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:07:55,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:07:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:55,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:07:55,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:55,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:07:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:07:55,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:55,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:07:55,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:07:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,337 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:07:55,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 20:07:55,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:07:55,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:07:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:55,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:07:55,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:07:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:55,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 20:07:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:07:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:07:55,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:07:55,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:07:55,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:07:55,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:07:55,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:07:55,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:07:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:07:55,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:07:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:07:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:07:55,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427284750] [2020-09-24 20:07:55,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:07:55,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:07:55,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744149935] [2020-09-24 20:07:55,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:07:55,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:07:55,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:07:55,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:07:55,520 INFO L87 Difference]: Start difference. First operand 377 states and 421 transitions. Second operand 9 states. [2020-09-24 20:07:56,008 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:07:57,270 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:07:57,633 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:07:57,986 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:07:58,330 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:07:58,654 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:07:59,317 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:07:59,635 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:00,018 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:01,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:01,203 INFO L93 Difference]: Finished difference Result 910 states and 1122 transitions. [2020-09-24 20:08:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:08:01,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 157 [2020-09-24 20:08:01,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:01,215 INFO L225 Difference]: With dead ends: 910 [2020-09-24 20:08:01,215 INFO L226 Difference]: Without dead ends: 643 [2020-09-24 20:08:01,219 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:08:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-24 20:08:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 551. [2020-09-24 20:08:01,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 551 states. [2020-09-24 20:08:01,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 645 transitions. [2020-09-24 20:08:01,319 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 645 transitions. Word has length 157 [2020-09-24 20:08:01,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:01,320 INFO L479 AbstractCegarLoop]: Abstraction has 551 states and 645 transitions. [2020-09-24 20:08:01,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:08:01,320 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 645 transitions. [2020-09-24 20:08:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 20:08:01,324 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:01,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:01,325 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:08:01,325 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:01,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:01,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1570026786, now seen corresponding path program 1 times [2020-09-24 20:08:01,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:01,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837065156] [2020-09-24 20:08:01,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:01,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 20:08:02,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 903 [2020-09-24 20:08:02,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-24 20:08:02,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:02,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,566 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:02,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-24 20:08:02,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:02,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:02,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:02,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:02,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:02,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:02,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:02,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:02,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:02,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 20:08:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:02,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:08:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:02,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:08:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:02,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:02,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:02,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:02,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:02,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:02,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-09-24 20:08:02,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:08:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:08:02,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:08:02,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:02,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:02,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:03,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:03,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:03,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:03,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:08:03,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:03,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:08:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:03,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:03,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:03,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:03,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:03,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:03,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:03,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:03,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:03,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:03,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:03,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:03,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:03,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:03,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:03,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:03,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:03,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:03,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:03,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 20:08:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:03,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:03,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:03,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:03,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:03,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:03,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:03,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:03,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:03,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:03,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 20:08:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:03,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:03,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:03,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:03,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:03,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:03,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:03,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:03,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:08:03,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837065156] [2020-09-24 20:08:03,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:08:03,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 20:08:03,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237494541] [2020-09-24 20:08:03,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 20:08:03,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:03,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 20:08:03,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 20:08:03,181 INFO L87 Difference]: Start difference. First operand 551 states and 645 transitions. Second operand 10 states. [2020-09-24 20:08:04,905 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:05,215 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:05,553 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:08:05,886 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:06,237 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:06,523 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:07,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:07,761 INFO L93 Difference]: Finished difference Result 1191 states and 1500 transitions. [2020-09-24 20:08:07,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 20:08:07,761 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-24 20:08:07,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:07,772 INFO L225 Difference]: With dead ends: 1191 [2020-09-24 20:08:07,773 INFO L226 Difference]: Without dead ends: 750 [2020-09-24 20:08:07,775 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 20:08:07,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-09-24 20:08:07,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 573. [2020-09-24 20:08:07,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-24 20:08:07,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 667 transitions. [2020-09-24 20:08:07,897 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 667 transitions. Word has length 195 [2020-09-24 20:08:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:07,899 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 667 transitions. [2020-09-24 20:08:07,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 20:08:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 667 transitions. [2020-09-24 20:08:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-09-24 20:08:07,905 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:07,906 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:07,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:08:07,907 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:07,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:07,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1654065899, now seen corresponding path program 1 times [2020-09-24 20:08:07,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:07,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [819335223] [2020-09-24 20:08:07,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:08,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:08,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:09,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:12,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:12,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:08:12,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:08:12,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,233 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 20:08:13,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-09-24 20:08:13,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:08:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:13,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 20:08:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:13,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:13,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:13,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:13,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 20:08:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:13,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:13,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:13,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 20:08:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:13,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:08:13,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:13,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 20:08:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:08:13,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:13,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:08:13,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:08:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:08:13,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:08:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 20:08:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:08:13,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:08:13,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 20:08:13,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 20:08:13,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:08:13,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:08:13,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:08:13,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:08:13,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:13,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:13,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:13,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:08:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 20:08:13,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:08:13,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:13,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:08:13,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:13,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:08:13,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:13,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:13,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:08:13,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:13,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:08:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:08:13,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:08:13,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 20:08:13,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:08:13,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:13,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:08:13,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 20:08:13,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:08:13,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:13,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:08:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:08:13,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:08:13,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:08:13,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:08:13,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:08:13,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:13,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:08:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:13,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:13,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:13,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:08:13,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:08:13,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:08:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:08:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:08:13,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:08:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:14,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:14,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:14,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:08:14,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:14,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:14,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:08:14,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:14,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:14,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 20:08:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:14,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:14,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:14,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:14,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:08:14,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:14,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:14,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:14,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2020-09-24 20:08:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:14,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:14,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:14,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:08:14,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:14,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:08:14,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:08:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:08:14,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:08:14,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:08:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 20:08:14,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [819335223] [2020-09-24 20:08:14,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:08:14,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:08:14,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220673057] [2020-09-24 20:08:14,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:08:14,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:08:14,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:08:14,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:08:14,106 INFO L87 Difference]: Start difference. First operand 573 states and 667 transitions. Second operand 12 states. [2020-09-24 20:08:14,580 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:15,576 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 20:08:16,008 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:16,345 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:16,681 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:17,031 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:08:17,327 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 20:08:17,673 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:17,987 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:18,339 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:18,738 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:08:19,045 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:08:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:08:22,256 INFO L93 Difference]: Finished difference Result 1979 states and 2640 transitions. [2020-09-24 20:08:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-09-24 20:08:22,258 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 244 [2020-09-24 20:08:22,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:08:22,270 INFO L225 Difference]: With dead ends: 1979 [2020-09-24 20:08:22,270 INFO L226 Difference]: Without dead ends: 1516 [2020-09-24 20:08:22,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 20:08:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-09-24 20:08:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1041. [2020-09-24 20:08:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-09-24 20:08:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1226 transitions. [2020-09-24 20:08:22,454 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1226 transitions. Word has length 244 [2020-09-24 20:08:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:08:22,454 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1226 transitions. [2020-09-24 20:08:22,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:08:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1226 transitions. [2020-09-24 20:08:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 20:08:22,459 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:22,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:22,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 20:08:22,460 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:22,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:22,460 INFO L82 PathProgramCache]: Analyzing trace with hash 110776353, now seen corresponding path program 1 times [2020-09-24 20:08:22,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:22,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2070963849] [2020-09-24 20:08:22,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:22,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:22,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:23,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:08:23,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 20:08:23,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:08:23,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1330 [2020-09-24 20:08:23,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:08:23,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 20:08:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:08:23,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 20:08:23,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:08:24,151 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 20:08:24,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:08:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat