/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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 07:01:07,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 07:01:07,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 07:01:07,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 07:01:07,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 07:01:07,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 07:01:07,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 07:01:07,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 07:01:07,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 07:01:07,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 07:01:07,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 07:01:07,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 07:01:07,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 07:01:07,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 07:01:07,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 07:01:07,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 07:01:07,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 07:01:07,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 07:01:07,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 07:01:07,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 07:01:07,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 07:01:07,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 07:01:07,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 07:01:07,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 07:01:07,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 07:01:07,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 07:01:07,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 07:01:07,944 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 07:01:07,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 07:01:07,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 07:01:07,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 07:01:07,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 07:01:07,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 07:01:07,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 07:01:07,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 07:01:07,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 07:01:07,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 07:01:07,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 07:01:07,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 07:01:07,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 07:01:07,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 07:01:07,957 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 [2020-10-14 07:01:07,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 07:01:07,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 07:01:07,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 07:01:07,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 07:01:07,993 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 07:01:07,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 07:01:07,993 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 07:01:07,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 07:01:07,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 07:01:07,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 07:01:07,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 07:01:07,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 07:01:07,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 07:01:07,995 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 07:01:07,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 07:01:07,996 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 07:01:07,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 07:01:07,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 07:01:07,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 07:01:07,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 07:01:07,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 07:01:07,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 07:01:07,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 07:01:07,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 07:01:07,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 07:01:07,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 07:01:07,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 07:01:07,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 07:01:07,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 07:01:07,998 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 -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 07:01:08,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 07:01:08,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 07:01:08,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 07:01:08,286 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 07:01:08,286 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 07:01:08,287 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-10-14 07:01:08,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ba3c852/75ad891462d149a78cd3483a79a72dd6/FLAGc9a80cdd2 [2020-10-14 07:01:08,775 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 07:01:08,776 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-10-14 07:01:08,800 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ba3c852/75ad891462d149a78cd3483a79a72dd6/FLAGc9a80cdd2 [2020-10-14 07:01:09,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/78ba3c852/75ad891462d149a78cd3483a79a72dd6 [2020-10-14 07:01:09,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 07:01:09,110 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 07:01:09,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:09,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 07:01:09,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 07:01:09,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6e054d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09, skipping insertion in model container [2020-10-14 07:01:09,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 07:01:09,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 07:01:09,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:09,681 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 07:01:09,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 07:01:09,857 INFO L208 MainTranslator]: Completed translation [2020-10-14 07:01:09,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09 WrapperNode [2020-10-14 07:01:09,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 07:01:09,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 07:01:09,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 07:01:09,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 07:01:09,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (1/1) ... [2020-10-14 07:01:09,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 07:01:09,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 07:01:09,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 07:01:09,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 07:01:09,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (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 [2020-10-14 07:01:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 07:01:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 07:01:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:10,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-14 07:01:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:10,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-14 07:01:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-14 07:01:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-14 07:01:10,019 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-14 07:01:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-14 07:01:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-14 07:01:10,020 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-14 07:01:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 07:01:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-14 07:01:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-14 07:01:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:10,021 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:01:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-14 07:01:10,022 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-14 07:01:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-14 07:01:10,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-14 07:01:10,024 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-14 07:01:10,025 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-14 07:01:10,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-14 07:01:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-14 07:01:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-14 07:01:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-14 07:01:10,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-14 07:01:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 07:01:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 07:01:10,027 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-14 07:01:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-14 07:01:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-14 07:01:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-14 07:01:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-10-14 07:01:10,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-14 07:01:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 07:01:10,029 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 07:01:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-14 07:01:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 07:01:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 07:01:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 07:01:10,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-14 07:01:10,031 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-14 07:01:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 07:01:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-14 07:01:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-14 07:01:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-14 07:01:10,032 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-14 07:01:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-14 07:01:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-14 07:01:10,033 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-14 07:01:10,034 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-14 07:01:10,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-14 07:01:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 07:01:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 07:01:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 07:01:11,003 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 07:01:11,003 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-14 07:01:11,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:11 BoogieIcfgContainer [2020-10-14 07:01:11,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 07:01:11,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 07:01:11,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 07:01:11,015 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 07:01:11,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:01:09" (1/3) ... [2020-10-14 07:01:11,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ad821c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:11, skipping insertion in model container [2020-10-14 07:01:11,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:01:09" (2/3) ... [2020-10-14 07:01:11,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ad821c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:01:11, skipping insertion in model container [2020-10-14 07:01:11,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:01:11" (3/3) ... [2020-10-14 07:01:11,020 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-10-14 07:01:11,030 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 07:01:11,039 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 07:01:11,052 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 07:01:11,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 07:01:11,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 07:01:11,072 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 07:01:11,072 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 07:01:11,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 07:01:11,073 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 07:01:11,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 07:01:11,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 07:01:11,093 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-10-14 07:01:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-14 07:01:11,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:11,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:01:11,104 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:11,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1737906003, now seen corresponding path program 1 times [2020-10-14 07:01:11,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:11,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798240407] [2020-10-14 07:01:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:11,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:11,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:11,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:12,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:12,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:15,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:15,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 07:01:15,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:15,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4472 [2020-10-14 07:01:15,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:15,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:15,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:15,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-14 07:01:15,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:15,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-14 07:01:16,329 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:16,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:16,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 07:01:16,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:16,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:16,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:16,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:16,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:16,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:16,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:16,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:16,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:16,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-14 07:01:16,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:16,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:16,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:16,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 07:01:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:16,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:16,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:16,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:16,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:16,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:16,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:16,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:16,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:16,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798240407] [2020-10-14 07:01:16,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:16,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 07:01:16,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205620160] [2020-10-14 07:01:16,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-14 07:01:16,489 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:16,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-14 07:01:16,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:16,507 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-10-14 07:01:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:17,768 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2020-10-14 07:01:17,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-14 07:01:17,770 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-10-14 07:01:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:17,784 INFO L225 Difference]: With dead ends: 329 [2020-10-14 07:01:17,785 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 07:01:17,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-14 07:01:17,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 07:01:17,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2020-10-14 07:01:17,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-14 07:01:17,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2020-10-14 07:01:17,882 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 46 [2020-10-14 07:01:17,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:17,882 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2020-10-14 07:01:17,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-14 07:01:17,883 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2020-10-14 07:01:17,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-14 07:01:17,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:17,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:01:17,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 07:01:17,887 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:17,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:17,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1744597296, now seen corresponding path program 1 times [2020-10-14 07:01:17,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:17,888 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852089562] [2020-10-14 07:01:17,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:17,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:17,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:18,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:18,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:19,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:21,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:21,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 07:01:21,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 07:01:21,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3928 [2020-10-14 07:01:21,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:21,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:21,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:21,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 07:01:21,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,165 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:22,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:22,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-14 07:01:22,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:01:22,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:22,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:22,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:22,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:22,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:22,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:22,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:22,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:22,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:22,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:22,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:22,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:22,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:22,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:22,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:22,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:22,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-14 07:01:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:22,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:22,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:22,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:22,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:22,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:01:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:22,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:22,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:22,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:22,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:22,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:22,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:22,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:22,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:22,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 07:01:22,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:22,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1852089562] [2020-10-14 07:01:22,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:22,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 07:01:22,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804593609] [2020-10-14 07:01:22,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 07:01:22,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:22,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 07:01:22,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 07:01:22,366 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 4 states. [2020-10-14 07:01:22,643 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:23,596 INFO L93 Difference]: Finished difference Result 296 states and 375 transitions. [2020-10-14 07:01:23,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 07:01:23,597 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-10-14 07:01:23,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:23,601 INFO L225 Difference]: With dead ends: 296 [2020-10-14 07:01:23,602 INFO L226 Difference]: Without dead ends: 177 [2020-10-14 07:01:23,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:01:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-10-14 07:01:23,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2020-10-14 07:01:23,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-10-14 07:01:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 169 transitions. [2020-10-14 07:01:23,664 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 169 transitions. Word has length 47 [2020-10-14 07:01:23,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:23,664 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 169 transitions. [2020-10-14 07:01:23,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 07:01:23,664 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 169 transitions. [2020-10-14 07:01:23,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-14 07:01:23,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:23,667 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] [2020-10-14 07:01:23,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 07:01:23,668 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:23,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:23,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1180963888, now seen corresponding path program 1 times [2020-10-14 07:01:23,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:23,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1324152154] [2020-10-14 07:01:23,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:23,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:23,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:24,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:25,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:28,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:28,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-14 07:01:28,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:01:28,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-14 07:01:28,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:28,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:28,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-14 07:01:28,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:01:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:28,936 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:28,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:28,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:28,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:28,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:29,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 07:01:29,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:29,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:29,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:29,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:29,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:29,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:29,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 07:01:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:01:29,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:01:29,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 07:01:29,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 07:01:29,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:01:29,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:29,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:01:29,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:29,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:01:29,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:29,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:29,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:29,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:29,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 07:01:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:29,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:29,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:29,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 07:01:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:29,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:29,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:29,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:29,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:29,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:29,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:29,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:29,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:29,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:29,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1324152154] [2020-10-14 07:01:29,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:29,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-14 07:01:29,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221505327] [2020-10-14 07:01:29,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 07:01:29,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:29,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 07:01:29,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 07:01:29,122 INFO L87 Difference]: Start difference. First operand 143 states and 169 transitions. Second operand 5 states. [2020-10-14 07:01:29,498 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:30,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:30,491 INFO L93 Difference]: Finished difference Result 277 states and 347 transitions. [2020-10-14 07:01:30,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:01:30,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-10-14 07:01:30,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:30,495 INFO L225 Difference]: With dead ends: 277 [2020-10-14 07:01:30,495 INFO L226 Difference]: Without dead ends: 176 [2020-10-14 07:01:30,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:30,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-10-14 07:01:30,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 134. [2020-10-14 07:01:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-10-14 07:01:30,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2020-10-14 07:01:30,531 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 65 [2020-10-14 07:01:30,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:30,532 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2020-10-14 07:01:30,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 07:01:30,532 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2020-10-14 07:01:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-14 07:01:30,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:30,535 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] [2020-10-14 07:01:30,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 07:01:30,535 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:30,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:30,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1654731465, now seen corresponding path program 1 times [2020-10-14 07:01:30,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:30,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345100605] [2020-10-14 07:01:30,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:30,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:30,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:31,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:31,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:33,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:33,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:33,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-14 07:01:35,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 07:01:35,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-14 07:01:35,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 07:01:35,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:35,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,815 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:35,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:35,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:35,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:35,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:35,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:35,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:35,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:35,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:35,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:35,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 07:01:35,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:35,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:35,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 07:01:35,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:35,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 07:01:35,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:35,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:35,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 07:01:35,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:01:35,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:35,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:35,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-14 07:01:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:35,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:35,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:35,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-14 07:01:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:35,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:35,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:35,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:35,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:35,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:35,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:35,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:35,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:35,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:35,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:35,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:35,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345100605] [2020-10-14 07:01:35,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:35,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 07:01:35,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140004625] [2020-10-14 07:01:35,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 07:01:35,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:35,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 07:01:35,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 07:01:35,980 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 6 states. [2020-10-14 07:01:36,288 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:37,350 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:38,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:38,063 INFO L93 Difference]: Finished difference Result 369 states and 459 transitions. [2020-10-14 07:01:38,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 07:01:38,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-10-14 07:01:38,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:38,067 INFO L225 Difference]: With dead ends: 369 [2020-10-14 07:01:38,072 INFO L226 Difference]: Without dead ends: 259 [2020-10-14 07:01:38,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-14 07:01:38,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-14 07:01:38,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 218. [2020-10-14 07:01:38,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-14 07:01:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 248 transitions. [2020-10-14 07:01:38,143 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 248 transitions. Word has length 69 [2020-10-14 07:01:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:38,144 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 248 transitions. [2020-10-14 07:01:38,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 07:01:38,144 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 248 transitions. [2020-10-14 07:01:38,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-14 07:01:38,146 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:38,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 07:01:38,147 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 07:01:38,147 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:38,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1727174811, now seen corresponding path program 1 times [2020-10-14 07:01:38,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:38,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327454620] [2020-10-14 07:01:38,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:38,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:38,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:40,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:42,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:42,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-14 07:01:42,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 07:01:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4558 [2020-10-14 07:01:42,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:42,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-14 07:01:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 64 [2020-10-14 07:01:42,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-14 07:01:42,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:42,983 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:42,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:42,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:43,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 07:01:43,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:43,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:43,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:43,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:43,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:43,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:43,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:43,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:43,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:43,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 07:01:43,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 07:01:43,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 07:01:43,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-14 07:01:43,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 07:01:43,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:43,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 07:01:43,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 07:01:43,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:01:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:43,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:43,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:01:43,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 07:01:43,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:43,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:43,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:43,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:43,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:43,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:43,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:43,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-14 07:01:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:43,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:43,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:43,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 07:01:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:43,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:43,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:43,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:43,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:43,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:43,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:43,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:43,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:43,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:43,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:43,259 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327454620] [2020-10-14 07:01:43,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:43,259 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:43,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963430049] [2020-10-14 07:01:43,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:43,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:43,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:43,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:43,262 INFO L87 Difference]: Start difference. First operand 218 states and 248 transitions. Second operand 8 states. [2020-10-14 07:01:43,560 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:44,538 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:44,768 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:45,014 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:45,256 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-10-14 07:01:45,487 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-10-14 07:01:46,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:46,346 INFO L93 Difference]: Finished difference Result 262 states and 314 transitions. [2020-10-14 07:01:46,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:01:46,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-10-14 07:01:46,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:46,350 INFO L225 Difference]: With dead ends: 262 [2020-10-14 07:01:46,350 INFO L226 Difference]: Without dead ends: 259 [2020-10-14 07:01:46,351 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:01:46,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-10-14 07:01:46,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 218. [2020-10-14 07:01:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-14 07:01:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 247 transitions. [2020-10-14 07:01:46,408 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 247 transitions. Word has length 83 [2020-10-14 07:01:46,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:46,409 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 247 transitions. [2020-10-14 07:01:46,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:46,409 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 247 transitions. [2020-10-14 07:01:46,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:46,411 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:46,411 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] [2020-10-14 07:01:46,411 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 07:01:46,411 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:46,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:46,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1339692446, now seen corresponding path program 1 times [2020-10-14 07:01:46,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:46,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943816259] [2020-10-14 07:01:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:46,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:01:48,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1807 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:48,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,475 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:48,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:01:48,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 07:01:48,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 07:01:48,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:48,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:48,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:48,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 07:01:48,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:48,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:48,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:01:48,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-14 07:01:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 07:01:48,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 07:01:48,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:48,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:48,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 07:01:48,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 07:01:48,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:48,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:48,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:48,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:48,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:48,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:48,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:48,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:01:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:48,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:48,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:01:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:48,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:48,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:48,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:48,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:48,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:48,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943816259] [2020-10-14 07:01:48,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:48,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:48,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271728011] [2020-10-14 07:01:48,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:48,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:48,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:48,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:48,673 INFO L87 Difference]: Start difference. First operand 218 states and 247 transitions. Second operand 8 states. [2020-10-14 07:01:49,440 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:49,662 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:49,893 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:50,144 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:51,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:51,011 INFO L93 Difference]: Finished difference Result 452 states and 539 transitions. [2020-10-14 07:01:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 07:01:51,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:01:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:51,016 INFO L225 Difference]: With dead ends: 452 [2020-10-14 07:01:51,016 INFO L226 Difference]: Without dead ends: 258 [2020-10-14 07:01:51,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-10-14 07:01:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2020-10-14 07:01:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 223. [2020-10-14 07:01:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-10-14 07:01:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 252 transitions. [2020-10-14 07:01:51,056 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 252 transitions. Word has length 84 [2020-10-14 07:01:51,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:51,057 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 252 transitions. [2020-10-14 07:01:51,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:01:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 252 transitions. [2020-10-14 07:01:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:51,058 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:51,058 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] [2020-10-14 07:01:51,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 07:01:51,058 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:51,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:51,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1064932832, now seen corresponding path program 1 times [2020-10-14 07:01:51,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:51,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1952317703] [2020-10-14 07:01:51,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:51,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:51,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1421 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:52,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:52,770 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:52,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:52,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 07:01:52,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:52,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:52,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:52,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:52,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:52,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:52,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:52,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:52,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:01:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:52,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:52,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:52,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:52,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:52,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:52,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:52,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:52,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:52,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:01:52,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 07:01:52,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:01:52,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:52,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:52,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 07:01:52,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 07:01:52,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:52,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:52,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:52,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:52,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:52,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 07:01:52,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:52,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:52,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-14 07:01:52,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:52,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:52,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:53,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:53,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:53,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 07:01:53,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:53,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-14 07:01:53,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:53,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:53,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:53,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:53,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:53,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:53,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 07:01:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:53,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:53,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:53,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:53,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:53,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:53,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:53,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:01:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:53,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:53,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:53,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:53,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:53,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:53,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:53,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:53,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:53,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:53,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:53,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:53,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:01:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:53,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:53,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:53,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:53,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:53,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:53,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:53,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:53,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:53,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1952317703] [2020-10-14 07:01:53,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:53,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:01:53,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030029229] [2020-10-14 07:01:53,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:01:53,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:53,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:01:53,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:01:53,091 INFO L87 Difference]: Start difference. First operand 223 states and 252 transitions. Second operand 7 states. [2020-10-14 07:01:53,816 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-14 07:01:54,041 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:54,255 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:55,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:01:55,085 INFO L93 Difference]: Finished difference Result 461 states and 556 transitions. [2020-10-14 07:01:55,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 07:01:55,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-10-14 07:01:55,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:01:55,088 INFO L225 Difference]: With dead ends: 461 [2020-10-14 07:01:55,088 INFO L226 Difference]: Without dead ends: 262 [2020-10-14 07:01:55,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-10-14 07:01:55,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2020-10-14 07:01:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 227. [2020-10-14 07:01:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2020-10-14 07:01:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 256 transitions. [2020-10-14 07:01:55,125 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 256 transitions. Word has length 84 [2020-10-14 07:01:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:01:55,126 INFO L479 AbstractCegarLoop]: Abstraction has 227 states and 256 transitions. [2020-10-14 07:01:55,126 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:01:55,126 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 256 transitions. [2020-10-14 07:01:55,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-14 07:01:55,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:01:55,127 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] [2020-10-14 07:01:55,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 07:01:55,128 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:01:55,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:01:55,128 INFO L82 PathProgramCache]: Analyzing trace with hash 885367423, now seen corresponding path program 1 times [2020-10-14 07:01:55,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:01:55,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144787079] [2020-10-14 07:01:55,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:01:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:55,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:55,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:56,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:56,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 07:01:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 07:01:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1564 [2020-10-14 07:01:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:56,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-14 07:01:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-10-14 07:01:56,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:56,959 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:01:56,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:01:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:56,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:57,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 07:01:57,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:01:57,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:01:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:57,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:57,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:57,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:01:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:57,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:57,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:57,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:01:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:57,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:57,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:57,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:57,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:01:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:01:57,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:57,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:01:57,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 07:01:57,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:01:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 07:01:57,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:01:57,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:01:57,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:01:57,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 07:01:57,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:57,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:01:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:01:57,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:01:57,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:01:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:01:57,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:57,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:01:57,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:01:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:57,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:01:57,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 07:01:57,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:57,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:01:57,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 07:01:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:01:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:01:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:57,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 07:01:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:01:57,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:01:57,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:01:57,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:01:57,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:01:57,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:01:57,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:01:57,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:01:57,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144787079] [2020-10-14 07:01:57,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:01:57,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 07:01:57,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604103353] [2020-10-14 07:01:57,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 07:01:57,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:01:57,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 07:01:57,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-14 07:01:57,177 INFO L87 Difference]: Start difference. First operand 227 states and 256 transitions. Second operand 8 states. [2020-10-14 07:01:57,512 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:58,557 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:58,810 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:01:59,037 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-14 07:01:59,264 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:01:59,534 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-14 07:02:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:02:00,672 INFO L93 Difference]: Finished difference Result 676 states and 819 transitions. [2020-10-14 07:02:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 07:02:00,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2020-10-14 07:02:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:02:00,682 INFO L225 Difference]: With dead ends: 676 [2020-10-14 07:02:00,682 INFO L226 Difference]: Without dead ends: 473 [2020-10-14 07:02:00,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 07:02:00,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-10-14 07:02:00,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 409. [2020-10-14 07:02:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-10-14 07:02:00,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 463 transitions. [2020-10-14 07:02:00,755 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 463 transitions. Word has length 84 [2020-10-14 07:02:00,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:02:00,756 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 463 transitions. [2020-10-14 07:02:00,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 07:02:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 463 transitions. [2020-10-14 07:02:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-14 07:02:00,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:02:00,758 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] [2020-10-14 07:02:00,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 07:02:00,758 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:02:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:02:00,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1408012101, now seen corresponding path program 1 times [2020-10-14 07:02:00,759 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:02:00,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48188418] [2020-10-14 07:02:00,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:02:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:00,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 07:02:01,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-14 07:02:01,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,384 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-14 07:02:01,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 07:02:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 07:02:01,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 07:02:01,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 07:02:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:01,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-14 07:02:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:01,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 07:02:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 07:02:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 07:02:01,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 07:02:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-14 07:02:01,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 07:02:01,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 07:02:01,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-14 07:02:01,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 07:02:01,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 07:02:01,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 07:02:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 07:02:01,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 07:02:01,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 07:02:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 07:02:01,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:01,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 07:02:01,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 07:02:01,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 07:02:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 07:02:01,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 07:02:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 07:02:01,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 07:02:01,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-14 07:02:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:01,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-14 07:02:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 07:02:01,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 07:02:01,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 07:02:01,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 07:02:01,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 07:02:01,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-14 07:02:01,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 07:02:01,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 07:02:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 07:02:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 07:02:01,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 07:02:01,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 07:02:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 07:02:01,558 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48188418] [2020-10-14 07:02:01,558 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 07:02:01,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 07:02:01,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338657980] [2020-10-14 07:02:01,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 07:02:01,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 07:02:01,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 07:02:01,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-14 07:02:01,561 INFO L87 Difference]: Start difference. First operand 409 states and 463 transitions. Second operand 7 states. [2020-10-14 07:02:01,858 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:02,308 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-14 07:02:04,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 07:02:04,101 INFO L93 Difference]: Finished difference Result 1209 states and 1542 transitions. [2020-10-14 07:02:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 07:02:04,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-10-14 07:02:04,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 07:02:04,108 INFO L225 Difference]: With dead ends: 1209 [2020-10-14 07:02:04,108 INFO L226 Difference]: Without dead ends: 824 [2020-10-14 07:02:04,110 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-10-14 07:02:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-14 07:02:04,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 725. [2020-10-14 07:02:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-10-14 07:02:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 857 transitions. [2020-10-14 07:02:04,247 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 857 transitions. Word has length 88 [2020-10-14 07:02:04,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 07:02:04,248 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 857 transitions. [2020-10-14 07:02:04,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 07:02:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 857 transitions. [2020-10-14 07:02:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-14 07:02:04,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 07:02:04,252 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] [2020-10-14 07:02:04,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 07:02:04,252 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 07:02:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 07:02:04,252 INFO L82 PathProgramCache]: Analyzing trace with hash 350479285, now seen corresponding path program 1 times [2020-10-14 07:02:04,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 07:02:04,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206699992] [2020-10-14 07:02:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 07:02:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 07:02:04,287 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 07:02:04,287 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 07:02:04,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 07:02:04,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:02:04 BoogieIcfgContainer [2020-10-14 07:02:04,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 07:02:04,327 INFO L168 Benchmark]: Toolchain (without parser) took 55217.58 ms. Allocated memory was 147.3 MB in the beginning and 935.9 MB in the end (delta: 788.5 MB). Free memory was 102.4 MB in the beginning and 252.6 MB in the end (delta: -150.1 MB). Peak memory consumption was 638.4 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,327 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,328 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.12 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 172.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,329 INFO L168 Benchmark]: Boogie Preprocessor took 90.93 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,330 INFO L168 Benchmark]: RCFGBuilder took 1060.90 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.4 MB in the beginning and 193.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,332 INFO L168 Benchmark]: TraceAbstraction took 53312.98 ms. Allocated memory was 236.5 MB in the beginning and 935.9 MB in the end (delta: 699.4 MB). Free memory was 193.0 MB in the beginning and 252.6 MB in the end (delta: -59.5 MB). Peak memory consumption was 639.9 MB. Max. memory is 7.1 GB. [2020-10-14 07:02:04,335 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.3 MB. Free memory was 121.9 MB in the beginning and 121.4 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.12 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 172.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.93 ms. Allocated memory is still 203.9 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1060.90 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.4 MB in the beginning and 193.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 53312.98 ms. Allocated memory was 236.5 MB in the beginning and 935.9 MB in the end (delta: 699.4 MB). Free memory was 193.0 MB in the beginning and 252.6 MB in the end (delta: -59.5 MB). Peak memory consumption was 639.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L530] FCALL select_helpers() [L531] FCALL select_features() [L532] CALL, EXPR valid_product() [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); [L532] RET, EXPR valid_product() [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L536] FCALL setup() [L537] CALL runTest() [L516] CALL test() [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 [L787] COND TRUE 1 [L789] COND TRUE splverifierCounter < 4 [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) [L799] CALL waterRise() [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 [L799] RET waterRise() [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) [L809] CALL changeMethaneLevel() [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 [L809] RET changeMethaneLevel() [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) [L830] CALL timeShift() [L561] COND FALSE !(\read(pumpRunning)) [L568] COND TRUE \read(systemActive) [L570] CALL processEnvironment() [L642] int tmp ; [L645] COND FALSE !(\read(pumpRunning)) [L660] CALL processEnvironment__wrappee__lowWaterSensor() [L616] int tmp ; [L619] COND FALSE !(\read(pumpRunning)) [L634] CALL processEnvironment__wrappee__highWaterSensor() [L590] int tmp ; [L593] COND TRUE ! pumpRunning [L595] CALL, EXPR isHighWaterLevel() [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L745] CALL, EXPR isHighWaterSensorDry() [L958] int retValue_acc ; [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); [L745] RET, EXPR isHighWaterSensorDry() [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); [L595] RET, EXPR isHighWaterLevel() [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) [L599] CALL activatePump() [L670] pumpRunning = 1 [L599] RET activatePump() [L634] RET processEnvironment__wrappee__highWaterSensor() [L660] RET processEnvironment__wrappee__lowWaterSensor() [L570] RET processEnvironment() [L576] CALL __utac_acc__Specification1_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR isMethaneLevelCritical() [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); [L49] RET, EXPR isMethaneLevelCritical() [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) [L53] CALL, EXPR isPumpRunning() [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L73] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 19.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1201 SDtfs, 2148 SDslu, 918 SDs, 0 SdLazy, 4155 SolverSat, 1286 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 310 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 425 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 32.3s InterpolantComputationTime, 742 NumberOfCodeBlocks, 742 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 641 ConstructedInterpolants, 0 QuantifiedInterpolants, 191622 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...