/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:44:16,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:44:16,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:44:16,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:44:16,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:44:16,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:44:16,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:44:16,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:44:16,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:44:16,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:44:16,381 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:44:16,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:44:16,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:44:16,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:44:16,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:44:16,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:44:16,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:44:16,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:44:16,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:44:16,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:44:16,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:44:16,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:44:16,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:44:16,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:44:16,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:44:16,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:44:16,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:44:16,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:44:16,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:44:16,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:44:16,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:44:16,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:44:16,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:44:16,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:44:16,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:44:16,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:44:16,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:44:16,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:44:16,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:44:16,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:44:16,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:44:16,442 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 15:44:16,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:44:16,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:44:16,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:44:16,488 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:44:16,488 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:44:16,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:44:16,489 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:44:16,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:44:16,489 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:44:16,489 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:44:16,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:44:16,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:44:16,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:44:16,491 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:44:16,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:44:16,492 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:44:16,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:44:16,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:44:16,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:44:16,493 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:44:16,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:44:16,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:44:16,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:44:16,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:44:16,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:44:16,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:44:16,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:44:16,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:44:16,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:44:16,494 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;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:44:16,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:44:16,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:44:16,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:44:16,965 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:44:16,966 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:44:16,967 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 15:44:17,071 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae2a9f9a/5a015be5218146548ee54b2db9a3c45d/FLAG8350b27b6 [2020-09-24 15:44:17,680 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:44:17,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product33.cil.c [2020-09-24 15:44:17,699 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae2a9f9a/5a015be5218146548ee54b2db9a3c45d/FLAG8350b27b6 [2020-09-24 15:44:17,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ae2a9f9a/5a015be5218146548ee54b2db9a3c45d [2020-09-24 15:44:17,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:44:17,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:44:17,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:44:17,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:44:17,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:44:17,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:17" (1/1) ... [2020-09-24 15:44:17,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11967da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:17, skipping insertion in model container [2020-09-24 15:44:17,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:44:17" (1/1) ... [2020-09-24 15:44:18,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:44:18,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:44:18,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:44:18,674 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:44:18,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:44:18,792 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:44:18,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18 WrapperNode [2020-09-24 15:44:18,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:44:18,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:44:18,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:44:18,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:44:18,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (1/1) ... [2020-09-24 15:44:18,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:44:18,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:44:18,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:44:18,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:44:18,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (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 15:44:18,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:44:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:44:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:44:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:44:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:44:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:44:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:44:18,985 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:44:18,986 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:44:18,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:44:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:44:18,988 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:44:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:44:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:44:18,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:44:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:44:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:44:18,990 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:44:18,991 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:44:18,992 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:44:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:44:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:44:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:44:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:44:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:44:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:44:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:44:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:44:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:44:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:44:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:44:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:44:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:44:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:44:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:44:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:44:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:44:20,271 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:44:20,271 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:44:20,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:44:20 BoogieIcfgContainer [2020-09-24 15:44:20,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:44:20,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:44:20,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:44:20,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:44:20,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:44:17" (1/3) ... [2020-09-24 15:44:20,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b87e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:44:20, skipping insertion in model container [2020-09-24 15:44:20,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:44:18" (2/3) ... [2020-09-24 15:44:20,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1b87e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:44:20, skipping insertion in model container [2020-09-24 15:44:20,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:44:20" (3/3) ... [2020-09-24 15:44:20,289 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2020-09-24 15:44:20,301 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:44:20,313 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:44:20,337 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:44:20,374 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:44:20,374 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:44:20,374 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:44:20,374 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:44:20,374 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:44:20,375 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:44:20,375 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:44:20,375 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:44:20,407 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2020-09-24 15:44:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 15:44:20,425 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:20,426 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] [2020-09-24 15:44:20,427 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:20,435 INFO L82 PathProgramCache]: Analyzing trace with hash -636857616, now seen corresponding path program 1 times [2020-09-24 15:44:20,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:20,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101860073] [2020-09-24 15:44:20,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:20,784 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:20,784 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:20,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:20,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:20,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 15:44:20,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:20,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:44:20,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 15:44:20,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:20,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,281 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:21,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:21,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 15:44:21,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,432 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,432 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:21,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,438 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,438 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,438 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:21,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,444 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:21,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:21,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,465 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:21,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:21,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:21,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,472 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,472 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:21,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:21,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:44:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:21,479 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:21,479 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:21,479 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:21,480 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:21,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:21,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:21,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:21,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:21,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:21,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:44:21,510 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101860073] [2020-09-24 15:44:21,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:21,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:44:21,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162733017] [2020-09-24 15:44:21,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:44:21,520 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:21,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:44:21,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:44:21,541 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2020-09-24 15:44:22,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:22,692 INFO L93 Difference]: Finished difference Result 432 states and 512 transitions. [2020-09-24 15:44:22,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 15:44:22,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-24 15:44:22,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:22,716 INFO L225 Difference]: With dead ends: 432 [2020-09-24 15:44:22,716 INFO L226 Difference]: Without dead ends: 281 [2020-09-24 15:44:22,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:44:22,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-24 15:44:22,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 236. [2020-09-24 15:44:22,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-09-24 15:44:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 255 transitions. [2020-09-24 15:44:22,867 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 255 transitions. Word has length 148 [2020-09-24 15:44:22,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:22,870 INFO L479 AbstractCegarLoop]: Abstraction has 236 states and 255 transitions. [2020-09-24 15:44:22,870 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:44:22,870 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 255 transitions. [2020-09-24 15:44:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-24 15:44:22,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:22,882 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] [2020-09-24 15:44:22,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:44:22,882 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:22,883 INFO L82 PathProgramCache]: Analyzing trace with hash -394037270, now seen corresponding path program 1 times [2020-09-24 15:44:22,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:22,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443905959] [2020-09-24 15:44:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,010 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,010 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,010 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,011 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-24 15:44:23,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:44:23,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 15:44:23,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:44:23,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,364 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:23,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,378 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:23,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,379 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,379 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,425 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,425 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:23,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,435 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,435 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,435 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,435 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:23,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,441 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,441 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,441 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:23,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-24 15:44:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:23,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:44:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:23,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:23,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:23,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:23,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:23,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:23,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:23,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:23,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:23,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:23,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:23,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:23,539 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 15:44:23,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443905959] [2020-09-24 15:44:23,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:23,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:44:23,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497482582] [2020-09-24 15:44:23,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:44:23,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:23,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:44:23,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:44:23,546 INFO L87 Difference]: Start difference. First operand 236 states and 255 transitions. Second operand 5 states. [2020-09-24 15:44:24,306 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:25,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:25,107 INFO L93 Difference]: Finished difference Result 361 states and 407 transitions. [2020-09-24 15:44:25,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:44:25,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-24 15:44:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:25,112 INFO L225 Difference]: With dead ends: 361 [2020-09-24 15:44:25,112 INFO L226 Difference]: Without dead ends: 270 [2020-09-24 15:44:25,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:44:25,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-24 15:44:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 226. [2020-09-24 15:44:25,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-24 15:44:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 242 transitions. [2020-09-24 15:44:25,171 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 242 transitions. Word has length 149 [2020-09-24 15:44:25,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:25,173 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 242 transitions. [2020-09-24 15:44:25,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:44:25,173 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 242 transitions. [2020-09-24 15:44:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-24 15:44:25,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:25,178 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] [2020-09-24 15:44:25,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:44:25,178 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:25,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:25,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1798175291, now seen corresponding path program 1 times [2020-09-24 15:44:25,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:25,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [507784264] [2020-09-24 15:44:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:44:25,265 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-24 15:44:25,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:25,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:44:25,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:44:25,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,751 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:25,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,827 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:25,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:25,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:44:25,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:25,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:25,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:25,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:25,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:25,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,956 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,957 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,957 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,957 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:25,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:25,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:25,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,964 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,964 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:25,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:25,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:25,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,976 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,977 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:25,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:25,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:25,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:25,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 15:44:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,981 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,982 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,982 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,982 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:25,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:25,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:25,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:25,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:25,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:25,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-24 15:44:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:25,986 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:25,987 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:25,987 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:25,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:25,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:25,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:25,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:44:25,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:25,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:25,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:26,016 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 15:44:26,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [507784264] [2020-09-24 15:44:26,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:26,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:44:26,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170759130] [2020-09-24 15:44:26,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:44:26,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:26,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:44:26,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:44:26,020 INFO L87 Difference]: Start difference. First operand 226 states and 242 transitions. Second operand 5 states. [2020-09-24 15:44:26,572 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:27,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:27,420 INFO L93 Difference]: Finished difference Result 381 states and 433 transitions. [2020-09-24 15:44:27,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:44:27,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-24 15:44:27,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:27,425 INFO L225 Difference]: With dead ends: 381 [2020-09-24 15:44:27,425 INFO L226 Difference]: Without dead ends: 270 [2020-09-24 15:44:27,427 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:44:27,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-24 15:44:27,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 226. [2020-09-24 15:44:27,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-09-24 15:44:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 241 transitions. [2020-09-24 15:44:27,477 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 241 transitions. Word has length 158 [2020-09-24 15:44:27,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:27,479 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 241 transitions. [2020-09-24 15:44:27,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:44:27,479 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 241 transitions. [2020-09-24 15:44:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:44:27,481 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:27,481 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] [2020-09-24 15:44:27,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:44:27,482 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1932582056, now seen corresponding path program 1 times [2020-09-24 15:44:27,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:27,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581489028] [2020-09-24 15:44:27,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:27,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:27,606 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:27,606 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:27,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:44:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:44:27,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-09-24 15:44:27,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:28,047 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:28,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,095 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,095 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,095 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:28,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:44:28,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:28,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:28,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:28,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:28,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:28,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:28,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:28,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,189 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:28,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:28,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,210 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,210 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,211 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:28,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:44:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,233 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,233 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,234 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,234 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 15:44:28,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:28,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:44:28,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 15:44:28,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:44:28,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:28,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:28,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:28,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:28,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:28,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-24 15:44:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,263 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,264 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:28,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:28,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:28,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:28,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:28,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:28,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 15:44:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:28,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:28,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:28,271 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:28,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:28,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:28,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:28,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:28,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:28,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:28,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:28,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:28,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:28,348 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 15:44:28,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581489028] [2020-09-24 15:44:28,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:28,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 15:44:28,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592935189] [2020-09-24 15:44:28,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 15:44:28,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:28,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 15:44:28,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:44:28,352 INFO L87 Difference]: Start difference. First operand 226 states and 241 transitions. Second operand 7 states. [2020-09-24 15:44:29,166 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:30,779 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:31,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:31,356 INFO L93 Difference]: Finished difference Result 511 states and 588 transitions. [2020-09-24 15:44:31,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 15:44:31,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-24 15:44:31,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:31,361 INFO L225 Difference]: With dead ends: 511 [2020-09-24 15:44:31,361 INFO L226 Difference]: Without dead ends: 400 [2020-09-24 15:44:31,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 15:44:31,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2020-09-24 15:44:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 329. [2020-09-24 15:44:31,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2020-09-24 15:44:31,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 356 transitions. [2020-09-24 15:44:31,409 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 356 transitions. Word has length 166 [2020-09-24 15:44:31,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:31,410 INFO L479 AbstractCegarLoop]: Abstraction has 329 states and 356 transitions. [2020-09-24 15:44:31,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 15:44:31,410 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 356 transitions. [2020-09-24 15:44:31,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-24 15:44:31,412 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:31,413 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] [2020-09-24 15:44:31,413 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:44:31,413 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:31,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:31,414 INFO L82 PathProgramCache]: Analyzing trace with hash 171472501, now seen corresponding path program 1 times [2020-09-24 15:44:31,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:31,414 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1850134513] [2020-09-24 15:44:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:31,507 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:31,508 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:31,508 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:31,508 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:31,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-09-24 15:44:31,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:31,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-24 15:44:31,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:31,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:44:31,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:44:31,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 134 [2020-09-24 15:44:31,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:31,915 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:31,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:31,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:31,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:31,961 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:31,961 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:31,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:31,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:31,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:31,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:31,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:44:31,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,025 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,026 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,026 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:32,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,033 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,033 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,033 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,034 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:32,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:32,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,045 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,046 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,046 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:32,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:32,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:32,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,056 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,056 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:32,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:32,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:32,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:32,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,079 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,079 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,080 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,080 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:32,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:32,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:32,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:44:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,109 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,109 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,110 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:44:32,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:32,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:32,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-09-24 15:44:32,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,162 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,162 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,162 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:32,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:32,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,170 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:32,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:32,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:32,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,177 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:32,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:32,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:32,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 15:44:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,190 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,190 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,191 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:32,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:32,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:32,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:32,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:32,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:44:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:32,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:32,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:32,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:32,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:32,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:32,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:32,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:32,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:32,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:32,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:32,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:32,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:32,302 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 15:44:32,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1850134513] [2020-09-24 15:44:32,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:32,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:44:32,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495997099] [2020-09-24 15:44:32,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:44:32,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:32,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:44:32,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:44:32,305 INFO L87 Difference]: Start difference. First operand 329 states and 356 transitions. Second operand 10 states. [2020-09-24 15:44:32,902 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:34,535 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:34,885 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 15:44:35,231 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:35,545 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:35,905 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 15:44:36,271 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:36,599 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 15:44:37,044 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:38,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:38,053 INFO L93 Difference]: Finished difference Result 821 states and 962 transitions. [2020-09-24 15:44:38,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 15:44:38,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-09-24 15:44:38,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:38,059 INFO L225 Difference]: With dead ends: 821 [2020-09-24 15:44:38,060 INFO L226 Difference]: Without dead ends: 607 [2020-09-24 15:44:38,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:44:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2020-09-24 15:44:38,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 497. [2020-09-24 15:44:38,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-09-24 15:44:38,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 543 transitions. [2020-09-24 15:44:38,133 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 543 transitions. Word has length 190 [2020-09-24 15:44:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:38,134 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 543 transitions. [2020-09-24 15:44:38,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:44:38,134 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 543 transitions. [2020-09-24 15:44:38,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 15:44:38,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:38,138 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:44:38,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:44:38,138 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:38,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:38,139 INFO L82 PathProgramCache]: Analyzing trace with hash 320544540, now seen corresponding path program 1 times [2020-09-24 15:44:38,139 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:38,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727475364] [2020-09-24 15:44:38,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,248 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,248 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,248 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 236 [2020-09-24 15:44:38,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 15:44:38,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:44:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:44:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 151 [2020-09-24 15:44:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 32 [2020-09-24 15:44:38,608 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,653 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:38,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:44:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,709 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,710 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,710 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,710 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:38,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,716 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,716 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,716 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,716 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:38,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,724 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:38,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:38,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:38,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,731 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:38,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:38,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:38,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,754 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:38,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:38,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,771 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,773 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,774 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:38,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:44:38,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:38,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 15:44:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,792 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:38,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:44:38,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:38,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:38,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 15:44:38,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,816 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:38,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:38,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:38,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:38,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:38,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 15:44:38,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,836 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:38,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:38,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:38,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:44:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:38,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:38,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:38,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:38,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:38,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:38,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:38,935 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 15:44:38,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727475364] [2020-09-24 15:44:38,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:38,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:44:38,937 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526787973] [2020-09-24 15:44:38,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:44:38,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:38,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:44:38,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:44:38,938 INFO L87 Difference]: Start difference. First operand 497 states and 543 transitions. Second operand 11 states. [2020-09-24 15:44:39,497 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:41,149 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:44:41,445 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:41,768 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 15:44:42,073 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:42,426 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:42,764 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:44:43,081 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:43,391 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:44,299 INFO L93 Difference]: Finished difference Result 1050 states and 1217 transitions. [2020-09-24 15:44:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 15:44:44,300 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 195 [2020-09-24 15:44:44,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:44,307 INFO L225 Difference]: With dead ends: 1050 [2020-09-24 15:44:44,307 INFO L226 Difference]: Without dead ends: 668 [2020-09-24 15:44:44,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=268, Invalid=724, Unknown=0, NotChecked=0, Total=992 [2020-09-24 15:44:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2020-09-24 15:44:44,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 495. [2020-09-24 15:44:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2020-09-24 15:44:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 539 transitions. [2020-09-24 15:44:44,393 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 539 transitions. Word has length 195 [2020-09-24 15:44:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:44,394 INFO L479 AbstractCegarLoop]: Abstraction has 495 states and 539 transitions. [2020-09-24 15:44:44,394 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:44:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 539 transitions. [2020-09-24 15:44:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 15:44:44,397 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:44,397 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] [2020-09-24 15:44:44,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:44:44,398 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:44,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:44,398 INFO L82 PathProgramCache]: Analyzing trace with hash 306083937, now seen corresponding path program 1 times [2020-09-24 15:44:44,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:44,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802696072] [2020-09-24 15:44:44,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:44,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:44:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-24 15:44:44,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:44:44,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,738 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:44,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,749 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,749 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,749 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,750 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:44,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,790 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,790 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,790 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,790 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:44,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,795 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,795 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,795 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,795 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:44,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,800 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:44,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,816 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,816 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,816 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:44,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:44,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,829 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:44,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 15:44:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,854 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:44:44,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:44:44,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:44:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:44:44,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:44:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,890 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,890 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,890 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,890 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:44,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:44:44,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,935 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:44,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:44,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,942 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,942 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,943 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:44,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:44:44,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 15:44:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,948 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,949 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,949 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,949 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:44,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:44,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 15:44:44,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:44,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:44,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:44,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:44,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:44,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:44,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:44,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:44,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:44,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:44,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:44,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:44,997 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 15:44:44,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802696072] [2020-09-24 15:44:45,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:45,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:44:45,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053120547] [2020-09-24 15:44:45,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:44:45,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:45,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:44:45,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:44:45,005 INFO L87 Difference]: Start difference. First operand 495 states and 539 transitions. Second operand 11 states. [2020-09-24 15:44:46,207 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:46,493 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:44:46,804 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:44:47,125 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:47,463 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:44:47,769 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:48,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:48,698 INFO L93 Difference]: Finished difference Result 1058 states and 1232 transitions. [2020-09-24 15:44:48,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:44:48,699 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-09-24 15:44:48,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:48,706 INFO L225 Difference]: With dead ends: 1058 [2020-09-24 15:44:48,706 INFO L226 Difference]: Without dead ends: 678 [2020-09-24 15:44:48,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:44:48,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-09-24 15:44:48,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 511. [2020-09-24 15:44:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-09-24 15:44:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 555 transitions. [2020-09-24 15:44:48,812 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 555 transitions. Word has length 196 [2020-09-24 15:44:48,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:48,813 INFO L479 AbstractCegarLoop]: Abstraction has 511 states and 555 transitions. [2020-09-24 15:44:48,813 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:44:48,813 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 555 transitions. [2020-09-24 15:44:48,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 15:44:48,817 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:48,818 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] [2020-09-24 15:44:48,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:44:48,818 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:48,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:48,818 INFO L82 PathProgramCache]: Analyzing trace with hash -833709887, now seen corresponding path program 1 times [2020-09-24 15:44:48,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:48,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219475866] [2020-09-24 15:44:48,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:48,903 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:44:48,904 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -73 [2020-09-24 15:44:48,904 FATAL L256 erpolLogProxyWrapper]: Difference in width: 73 [2020-09-24 15:44:48,904 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:48,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-24 15:44:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:44:48,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,184 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,194 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,231 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,231 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,231 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:49,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,237 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:49,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,241 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:49,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,247 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,247 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,247 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:49,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,258 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:49,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,270 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,270 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,270 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,271 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:49,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 15:44:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,291 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,291 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:44:49,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:44:49,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:44:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:44:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,305 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,305 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,306 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:49,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:49,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:44:49,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:44:49,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:44:49,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,342 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,343 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,343 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,343 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:49,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:44:49,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:44:49,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:49,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:49,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:49,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:49,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,385 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,385 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,385 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:44:49,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 15:44:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,391 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:49,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:49,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:49,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:49,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 15:44:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:49,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:49,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:49,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:49,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:49,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-24 15:44:49,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:49,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:49,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:49,450 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 15:44:49,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219475866] [2020-09-24 15:44:49,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:49,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:44:49,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044845685] [2020-09-24 15:44:49,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:44:49,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:49,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:44:49,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:44:49,454 INFO L87 Difference]: Start difference. First operand 511 states and 555 transitions. Second operand 10 states. [2020-09-24 15:44:50,632 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:44:50,926 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 15:44:51,248 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:51,506 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 15:44:51,791 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:52,640 INFO L93 Difference]: Finished difference Result 1096 states and 1286 transitions. [2020-09-24 15:44:52,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:44:52,641 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2020-09-24 15:44:52,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:52,645 INFO L225 Difference]: With dead ends: 1096 [2020-09-24 15:44:52,646 INFO L226 Difference]: Without dead ends: 700 [2020-09-24 15:44:52,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:44:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2020-09-24 15:44:52,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 523. [2020-09-24 15:44:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2020-09-24 15:44:52,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 567 transitions. [2020-09-24 15:44:52,716 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 567 transitions. Word has length 196 [2020-09-24 15:44:52,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:52,717 INFO L479 AbstractCegarLoop]: Abstraction has 523 states and 567 transitions. [2020-09-24 15:44:52,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:44:52,717 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 567 transitions. [2020-09-24 15:44:52,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-09-24 15:44:52,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:52,722 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] [2020-09-24 15:44:52,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:44:52,723 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:52,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:52,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1330134718, now seen corresponding path program 1 times [2020-09-24 15:44:52,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:52,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415021115] [2020-09-24 15:44:52,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:52,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:52,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:52,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:52,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:52,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-24 15:44:52,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-09-24 15:44:52,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,137 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:53,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:53,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,167 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 15:44:53,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:53,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:53,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:53,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,217 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,222 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:53,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:53,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:53,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:53,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:44:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:53,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:53,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 15:44:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,256 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,256 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,256 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:53,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:53,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 15:44:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:44:53,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:53,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 15:44:53,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 15:44:53,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:53,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,298 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,299 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,299 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:53,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:53,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:44:53,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:53,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:44:53,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,333 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,334 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,334 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,334 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:53,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:53,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:44:53,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 15:44:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,341 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,342 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,342 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,342 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:53,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:53,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:53,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 15:44:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:53,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:53,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:53,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:53,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:53,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:53,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:44:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:53,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:53,397 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 15:44:53,398 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415021115] [2020-09-24 15:44:53,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:53,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:44:53,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175957618] [2020-09-24 15:44:53,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:44:53,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:53,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:44:53,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:44:53,400 INFO L87 Difference]: Start difference. First operand 523 states and 567 transitions. Second operand 8 states. [2020-09-24 15:44:53,890 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:54,576 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:44:56,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:56,497 INFO L93 Difference]: Finished difference Result 1557 states and 1867 transitions. [2020-09-24 15:44:56,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-24 15:44:56,498 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 196 [2020-09-24 15:44:56,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:56,505 INFO L225 Difference]: With dead ends: 1557 [2020-09-24 15:44:56,505 INFO L226 Difference]: Without dead ends: 1149 [2020-09-24 15:44:56,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552 [2020-09-24 15:44:56,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2020-09-24 15:44:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 917. [2020-09-24 15:44:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-09-24 15:44:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1023 transitions. [2020-09-24 15:44:56,647 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1023 transitions. Word has length 196 [2020-09-24 15:44:56,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:44:56,647 INFO L479 AbstractCegarLoop]: Abstraction has 917 states and 1023 transitions. [2020-09-24 15:44:56,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:44:56,647 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1023 transitions. [2020-09-24 15:44:56,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 15:44:56,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:44:56,653 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] [2020-09-24 15:44:56,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:44:56,653 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:44:56,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:44:56,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1497513317, now seen corresponding path program 1 times [2020-09-24 15:44:56,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:44:56,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1278760288] [2020-09-24 15:44:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:44:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:56,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:56,733 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:56,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:56,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:56,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-09-24 15:44:56,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 15:44:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:57,033 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:44:57,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:44:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 15:44:57,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 15:44:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,085 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,085 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,086 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,086 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:57,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:44:57,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 15:44:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:57,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 15:44:57,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 15:44:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:57,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 15:44:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,117 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,117 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:44:57,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 15:44:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,135 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,135 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:57,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:44:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:44:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:57,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:44:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:44:57,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:44:57,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:44:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,201 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,202 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,202 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,202 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:44:57,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 15:44:57,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:44:57,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,220 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,220 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:44:57,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:44:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,229 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:44:57,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:44:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:44:57,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:44:57,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:44:57,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:44:57,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 15:44:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,246 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,246 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,247 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,247 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:57,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:57,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 15:44:57,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:44:57,254 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:44:57,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:44:57,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:44:57,255 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:44:57,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:44:57,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:44:57,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:44:57,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:44:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:44:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:44:57,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:44:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:44:57,341 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 15:44:57,341 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1278760288] [2020-09-24 15:44:57,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:44:57,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:44:57,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107892732] [2020-09-24 15:44:57,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:44:57,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:44:57,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:44:57,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:44:57,344 INFO L87 Difference]: Start difference. First operand 917 states and 1023 transitions. Second operand 8 states. [2020-09-24 15:44:57,931 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:44:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:44:59,958 INFO L93 Difference]: Finished difference Result 1759 states and 2100 transitions. [2020-09-24 15:44:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 15:44:59,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-09-24 15:44:59,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:44:59,969 INFO L225 Difference]: With dead ends: 1759 [2020-09-24 15:44:59,969 INFO L226 Difference]: Without dead ends: 1756 [2020-09-24 15:44:59,971 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=175, Invalid=475, Unknown=0, NotChecked=0, Total=650 [2020-09-24 15:44:59,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2020-09-24 15:45:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1420. [2020-09-24 15:45:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1420 states. [2020-09-24 15:45:00,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 1599 transitions. [2020-09-24 15:45:00,139 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 1599 transitions. Word has length 201 [2020-09-24 15:45:00,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:45:00,140 INFO L479 AbstractCegarLoop]: Abstraction has 1420 states and 1599 transitions. [2020-09-24 15:45:00,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:45:00,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 1599 transitions. [2020-09-24 15:45:00,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-09-24 15:45:00,146 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:45:00,147 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, 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] [2020-09-24 15:45:00,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 15:45:00,147 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:45:00,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:45:00,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1505464834, now seen corresponding path program 1 times [2020-09-24 15:45:00,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:45:00,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286629904] [2020-09-24 15:45:00,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:45:00,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:45:00,253 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:45:00,253 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:45:00,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 15:45:00,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:45:00 BoogieIcfgContainer [2020-09-24 15:45:00,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:45:00,296 INFO L168 Benchmark]: Toolchain (without parser) took 42322.92 ms. Allocated memory was 140.5 MB in the beginning and 791.2 MB in the end (delta: 650.6 MB). Free memory was 101.7 MB in the beginning and 340.8 MB in the end (delta: -239.1 MB). Peak memory consumption was 411.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:45:00,296 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 15:45:00,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.51 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 171.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:45:00,297 INFO L168 Benchmark]: Boogie Preprocessor took 97.32 ms. Allocated memory is still 203.9 MB. Free memory was 171.7 MB in the beginning and 167.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:45:00,298 INFO L168 Benchmark]: RCFGBuilder took 1388.00 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 167.1 MB in the beginning and 177.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. [2020-09-24 15:45:00,299 INFO L168 Benchmark]: TraceAbstraction took 40013.12 ms. Allocated memory was 238.0 MB in the beginning and 791.2 MB in the end (delta: 553.1 MB). Free memory was 177.3 MB in the beginning and 340.8 MB in the end (delta: -163.5 MB). Peak memory consumption was 389.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:45:00,302 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.51 ms. Allocated memory was 140.5 MB in the beginning and 203.9 MB in the end (delta: 63.4 MB). Free memory was 101.1 MB in the beginning and 171.7 MB in the end (delta: -70.6 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.32 ms. Allocated memory is still 203.9 MB. Free memory was 171.7 MB in the beginning and 167.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1388.00 ms. Allocated memory was 203.9 MB in the beginning and 238.0 MB in the end (delta: 34.1 MB). Free memory was 167.1 MB in the beginning and 177.3 MB in the end (delta: -10.3 MB). Peak memory consumption was 81.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40013.12 ms. Allocated memory was 238.0 MB in the beginning and 791.2 MB in the end (delta: 553.1 MB). Free memory was 177.3 MB in the beginning and 340.8 MB in the end (delta: -163.5 MB). Peak memory consumption was 389.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 284]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L257] int retValue_acc ; [L258] int tmp ; [L262] FCALL select_helpers() [L263] FCALL select_features() [L264] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L264] RET, EXPR valid_product() [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) [L268] FCALL setup() [L269] CALL runTest() [L250] CALL __utac_acc__Specification2_spec__1() [L881] methAndRunningLastTime = 0 [L250] RET __utac_acc__Specification2_spec__1() [L251] CALL test() [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND TRUE \read(tmp) [L467] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L467] RET waterRise() [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND TRUE \read(tmp___0) [L477] CALL changeMethaneLevel() [L115] COND FALSE !(\read(methaneLevelCritical)) [L118] methaneLevelCritical = 1 [L477] RET changeMethaneLevel() [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND TRUE ! pumpRunning [L334] CALL, EXPR isHighWaterLevel() [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; [L432] CALL, EXPR isHighWaterSensorDry() [L165] int retValue_acc ; [L168] COND FALSE !(waterLevel < 2) [L172] retValue_acc = 0 [L173] return (retValue_acc); [L432] RET, EXPR isHighWaterSensorDry() [L432] tmp = isHighWaterSensorDry() [L434] COND FALSE !(\read(tmp)) [L437] tmp___0 = 1 [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); [L334] RET, EXPR isHighWaterLevel() [L334] tmp = isHighWaterLevel() [L336] COND TRUE \read(tmp) [L338] CALL activatePump() [L357] pumpRunning = 1 [L338] RET activatePump() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND FALSE !(\read(methAndRunningLastTime)) [L903] methAndRunningLastTime = 1 [L315] RET __utac_acc__Specification2_spec__2() [L498] RET timeShift() [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L498] CALL timeShift() [L300] COND TRUE \read(pumpRunning) [L302] CALL lowerWaterLevel() [L91] COND TRUE waterLevel > 0 [L92] waterLevel = waterLevel - 1 [L302] RET lowerWaterLevel() [L307] COND TRUE \read(systemActive) [L309] CALL processEnvironment() [L329] int tmp ; [L332] COND FALSE !(! pumpRunning) [L347] FCALL processEnvironment__wrappee__base() [L309] RET processEnvironment() [L315] CALL __utac_acc__Specification2_spec__2() [L886] int tmp ; [L887] int tmp___0 ; [L891] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] RET, EXPR isMethaneLevelCritical() [L891] tmp = isMethaneLevelCritical() [L893] COND TRUE \read(tmp) [L895] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L895] RET, EXPR isPumpRunning() [L895] tmp___0 = isPumpRunning() [L897] COND TRUE \read(tmp___0) [L898] COND TRUE \read(methAndRunningLastTime) [L900] CALL __automaton_fail() [L284] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2224 SDtfs, 6872 SDslu, 3415 SDs, 0 SdLazy, 6277 SolverSat, 1888 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 433 GetRequests, 270 SyntacticMatches, 3 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 652 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1420occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 1399 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 2055 NumberOfCodeBlocks, 2055 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1785 ConstructedInterpolants, 0 QuantifiedInterpolants, 873356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...