/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:39:21,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:39:21,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:39:21,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:39:21,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:39:21,450 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:39:21,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:39:21,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:39:21,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:39:21,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:39:21,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:39:21,467 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:39:21,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:39:21,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:39:21,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:39:21,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:39:21,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:39:21,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:39:21,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:39:21,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:39:21,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:39:21,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:39:21,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:39:21,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:39:21,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:39:21,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:39:21,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:39:21,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:39:21,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:39:21,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:39:21,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:39:21,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:39:21,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:39:21,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:39:21,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:39:21,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:39:21,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:39:21,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:39:21,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:39:21,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:39:21,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:39:21,513 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 23:39:21,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:39:21,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:39:21,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:39:21,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:39:21,560 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:39:21,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:39:21,560 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:39:21,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:39:21,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:39:21,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:39:21,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:39:21,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:39:21,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:39:21,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:39:21,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:39:21,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:39:21,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:39:21,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:39:21,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:39:21,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:39:21,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:39:21,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:39:21,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:39:21,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:39:21,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:39:21,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:39:21,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:39:21,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:39:21,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:39:21,566 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:39:22,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:39:22,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:39:22,032 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:39:22,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:39:22,036 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:39:22,037 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-24 23:39:22,131 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/756d28cdb/a3d3bf0446b14892ab137d8cd0fde5a6/FLAG5c8d5b09f [2020-09-24 23:39:22,783 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:39:22,784 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product46.cil.c [2020-09-24 23:39:22,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/756d28cdb/a3d3bf0446b14892ab137d8cd0fde5a6/FLAG5c8d5b09f [2020-09-24 23:39:23,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/756d28cdb/a3d3bf0446b14892ab137d8cd0fde5a6 [2020-09-24 23:39:23,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:39:23,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:39:23,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:23,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:39:23,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:39:23,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@156a129e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23, skipping insertion in model container [2020-09-24 23:39:23,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:39:23,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:39:23,522 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:23,649 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:39:23,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:39:23,829 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:39:23,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23 WrapperNode [2020-09-24 23:39:23,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:39:23,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:39:23,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:39:23,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:39:23,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (1/1) ... [2020-09-24 23:39:23,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:39:23,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:39:23,933 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:39:23,933 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:39:23,934 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (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 23:39:24,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:39:24,009 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:39:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:39:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:24,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:39:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:39:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:39:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:39:24,011 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:39:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:39:24,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:39:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:39:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:39:24,013 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:39:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:39:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:39:24,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:39:24,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:39:24,016 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:39:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:39:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:39:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:39:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:39:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:39:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:39:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:39:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:39:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:39:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:39:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:39:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:39:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:39:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:39:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:39:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:39:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:39:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:39:24,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:39:24,021 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:39:24,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:39:24,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:39:24,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:39:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:39:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:39:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:39:24,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:39:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:39:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:39:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:39:24,026 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:39:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:39:24,027 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:39:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:39:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:39:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:39:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:39:24,028 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:39:24,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:39:24,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:39:25,249 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:39:25,249 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:39:25,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:25 BoogieIcfgContainer [2020-09-24 23:39:25,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:39:25,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:39:25,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:39:25,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:39:25,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:39:23" (1/3) ... [2020-09-24 23:39:25,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f3dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:25, skipping insertion in model container [2020-09-24 23:39:25,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:39:23" (2/3) ... [2020-09-24 23:39:25,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762f3dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:39:25, skipping insertion in model container [2020-09-24 23:39:25,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:39:25" (3/3) ... [2020-09-24 23:39:25,274 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2020-09-24 23:39:25,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:39:25,296 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:39:25,315 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:39:25,348 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:39:25,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:39:25,348 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:39:25,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:39:25,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:39:25,349 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:39:25,349 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:39:25,349 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:39:25,380 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-24 23:39:25,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:39:25,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:25,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:39:25,401 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:25,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:25,409 INFO L82 PathProgramCache]: Analyzing trace with hash 2069436890, now seen corresponding path program 1 times [2020-09-24 23:39:25,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:25,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965031079] [2020-09-24 23:39:25,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:25,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:26,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:27,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:28,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:30,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:30,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:39:30,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:30,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-24 23:39:30,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:39:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 23:39:30,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-24 23:39:30,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:39:31,417 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:31,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:31,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 23:39:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 23:39:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:31,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:31,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 23:39:31,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:31,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:31,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:31,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:31,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:31,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:31,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:31,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:31,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:31,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:31,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:39:31,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:31,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:31,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:31,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:31,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:31,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:31,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:31,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:31,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:39:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:31,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:31,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:31,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:31,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:31,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:31,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:31,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:31,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:31,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:31,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:32,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:39:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:32,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:32,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:32,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:32,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:32,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:32,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:32,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:32,072 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 23:39:32,073 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965031079] [2020-09-24 23:39:32,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:32,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 23:39:32,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624333038] [2020-09-24 23:39:32,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 23:39:32,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:32,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 23:39:32,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 23:39:32,123 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-24 23:39:33,067 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:34,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:34,423 INFO L93 Difference]: Finished difference Result 506 states and 600 transitions. [2020-09-24 23:39:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 23:39:34,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-24 23:39:34,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:34,447 INFO L225 Difference]: With dead ends: 506 [2020-09-24 23:39:34,447 INFO L226 Difference]: Without dead ends: 312 [2020-09-24 23:39:34,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 23:39:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-09-24 23:39:34,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 268. [2020-09-24 23:39:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-24 23:39:34,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-09-24 23:39:34,619 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 142 [2020-09-24 23:39:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:34,621 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-09-24 23:39:34,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 23:39:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-09-24 23:39:34,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 23:39:34,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:34,634 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] [2020-09-24 23:39:34,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:39:34,635 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:34,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:34,637 INFO L82 PathProgramCache]: Analyzing trace with hash 445163065, now seen corresponding path program 1 times [2020-09-24 23:39:34,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:34,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [379333957] [2020-09-24 23:39:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:34,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:34,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:35,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:39,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:39,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-24 23:39:39,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:39:39,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:39:39,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:39:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:39:39,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:39:39,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,042 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:40,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:40,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 23:39:40,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:39:40,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:40,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:40,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:40,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:40,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:40,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:40,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:40,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:39:40,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:40,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:40,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:40,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:40,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:39:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:39:40,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:39:40,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 23:39:40,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:39:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 23:39:40,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 23:39:40,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:39:40,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:40,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:40,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:39:40,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:40,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:40,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:40,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:40,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:40,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 23:39:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:40,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:40,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:40,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:40,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:40,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:39:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:40,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:40,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:40,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:40,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:40,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:39:40,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:40,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:40,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:39:40,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:40,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:40,648 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 23:39:40,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [379333957] [2020-09-24 23:39:40,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:40,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:39:40,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523834499] [2020-09-24 23:39:40,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:39:40,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:40,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:39:40,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:39:40,653 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 7 states. [2020-09-24 23:39:41,151 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:39:42,689 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:44,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:44,108 INFO L93 Difference]: Finished difference Result 653 states and 780 transitions. [2020-09-24 23:39:44,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:39:44,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-24 23:39:44,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:44,120 INFO L225 Difference]: With dead ends: 653 [2020-09-24 23:39:44,120 INFO L226 Difference]: Without dead ends: 495 [2020-09-24 23:39:44,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:39:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-09-24 23:39:44,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 410. [2020-09-24 23:39:44,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-24 23:39:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 453 transitions. [2020-09-24 23:39:44,209 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 453 transitions. Word has length 156 [2020-09-24 23:39:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:44,210 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 453 transitions. [2020-09-24 23:39:44,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:39:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 453 transitions. [2020-09-24 23:39:44,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-24 23:39:44,212 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:44,213 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] [2020-09-24 23:39:44,213 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:39:44,213 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash 2040956537, now seen corresponding path program 1 times [2020-09-24 23:39:44,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:44,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178485471] [2020-09-24 23:39:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:44,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:45,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:49,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:49,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-09-24 23:39:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 23:39:49,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 23:39:49,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:49,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-24 23:39:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:39:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-24 23:39:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:49,706 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:39:49,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:39:49,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:49,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:49,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:49,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:39:49,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:49,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-24 23:39:49,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:49,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:49,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:39:49,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:50,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:39:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:50,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:50,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:39:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:50,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:50,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:50,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:39:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:50,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:39:50,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:39:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:50,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:50,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:50,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:39:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-24 23:39:50,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:39:50,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-09-24 23:39:50,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:39:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:50,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 49 [2020-09-24 23:39:50,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:39:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 23:39:50,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 23:39:50,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:39:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:39:50,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-24 23:39:50,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:39:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:39:50,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:39:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:39:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:39:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:39:50,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:39:50,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:39:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:39:50,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:39:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:39:50,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:39:50,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:39:50,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 23:39:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:50,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:39:50,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:39:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:50,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 23:39:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:50,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:39:50,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:39:50,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:39:50,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:39:50,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:39:50,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:39:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:39:50,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:39:50,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:39:50,457 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 23:39:50,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178485471] [2020-09-24 23:39:50,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:39:50,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:39:50,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802916702] [2020-09-24 23:39:50,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:39:50,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:39:50,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:39:50,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:39:50,466 INFO L87 Difference]: Start difference. First operand 410 states and 453 transitions. Second operand 9 states. [2020-09-24 23:39:50,937 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:52,535 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:52,894 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:39:53,251 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:53,620 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:39:53,974 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:39:54,436 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:39:54,759 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:55,120 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:39:56,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:39:56,426 INFO L93 Difference]: Finished difference Result 488 states and 565 transitions. [2020-09-24 23:39:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:39:56,427 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 180 [2020-09-24 23:39:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:39:56,434 INFO L225 Difference]: With dead ends: 488 [2020-09-24 23:39:56,435 INFO L226 Difference]: Without dead ends: 485 [2020-09-24 23:39:56,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:39:56,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-24 23:39:56,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 410. [2020-09-24 23:39:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-09-24 23:39:56,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 452 transitions. [2020-09-24 23:39:56,502 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 452 transitions. Word has length 180 [2020-09-24 23:39:56,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:39:56,503 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 452 transitions. [2020-09-24 23:39:56,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:39:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 452 transitions. [2020-09-24 23:39:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 23:39:56,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:39:56,507 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:39:56,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:39:56,507 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:39:56,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:39:56,508 INFO L82 PathProgramCache]: Analyzing trace with hash -853198855, now seen corresponding path program 1 times [2020-09-24 23:39:56,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:39:56,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133934194] [2020-09-24 23:39:56,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:39:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:39:56,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:56,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:39:57,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:01,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:01,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-09-24 23:40:01,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 23:40:01,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-24 23:40:01,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:40:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:40:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 153 [2020-09-24 23:40:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:01,979 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:40:01,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:40:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:40:02,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 23:40:02,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:40:02,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:40:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:02,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:02,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:02,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:02,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:40:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:02,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:02,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:02,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:40:02,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:02,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:02,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:02,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 23:40:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:40:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:40:02,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:02,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:40:02,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 23:40:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 23:40:02,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:02,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-24 23:40:02,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:40:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:40:02,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 23:40:02,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:40:02,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 23:40:02,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:40:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:40:02,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:40:02,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:40:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:40:02,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:40:02,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:40:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 23:40:02,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 23:40:02,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:40:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:40:02,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:02,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:40:02,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:02,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:40:02,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 23:40:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:40:02,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:40:02,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:40:02,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:02,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:40:02,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:40:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:40:02,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:40:02,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:40:02,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 23:40:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:02,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:02,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:40:02,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:40:02,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:40:02,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:40:02,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:40:02,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:40:02,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:40:03,074 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 23:40:03,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133934194] [2020-09-24 23:40:03,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:40:03,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:40:03,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254177398] [2020-09-24 23:40:03,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:40:03,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:40:03,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:40:03,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:40:03,080 INFO L87 Difference]: Start difference. First operand 410 states and 452 transitions. Second operand 10 states. [2020-09-24 23:40:03,770 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:05,151 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:05,468 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:05,823 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:06,165 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:40:06,480 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:40:07,452 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:40:07,761 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:08,095 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:40:09,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:40:09,752 INFO L93 Difference]: Finished difference Result 987 states and 1210 transitions. [2020-09-24 23:40:09,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:40:09,752 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 203 [2020-09-24 23:40:09,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:40:09,758 INFO L225 Difference]: With dead ends: 987 [2020-09-24 23:40:09,758 INFO L226 Difference]: Without dead ends: 687 [2020-09-24 23:40:09,761 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 23:40:09,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2020-09-24 23:40:09,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 618. [2020-09-24 23:40:09,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 618 states. [2020-09-24 23:40:09,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 722 transitions. [2020-09-24 23:40:09,847 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 722 transitions. Word has length 203 [2020-09-24 23:40:09,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:40:09,848 INFO L479 AbstractCegarLoop]: Abstraction has 618 states and 722 transitions. [2020-09-24 23:40:09,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:40:09,849 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 722 transitions. [2020-09-24 23:40:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-09-24 23:40:09,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:40:09,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:40:09,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:40:09,856 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:40:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:40:09,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1967051574, now seen corresponding path program 1 times [2020-09-24 23:40:09,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:40:09,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194408573] [2020-09-24 23:40:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:40:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:40:09,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:40:10,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking...