/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:00:24,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:00:24,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:00:24,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:00:24,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:00:24,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:00:24,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:00:24,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:00:24,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:00:24,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:00:24,774 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:00:24,776 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:00:24,777 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:00:24,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:00:24,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:00:24,786 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:00:24,787 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:00:24,788 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:00:24,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:00:24,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:00:24,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:00:24,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:00:24,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:00:24,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:00:24,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:00:24,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:00:24,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:00:24,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:00:24,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:00:24,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:00:24,815 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:00:24,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:00:24,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:00:24,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:00:24,819 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:00:24,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:00:24,820 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:00:24,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:00:24,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:00:24,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:00:24,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:00:24,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 04:00:24,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:00:24,868 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:00:24,870 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:00:24,870 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:00:24,870 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:00:24,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:00:24,871 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:00:24,871 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:00:24,871 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:00:24,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:00:24,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:00:24,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:00:24,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:00:24,873 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:00:24,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:00:24,874 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:00:24,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:00:24,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:00:24,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:00:24,875 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:00:24,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:00:24,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:00:24,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:00:24,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:00:24,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:00:24,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:00:24,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:00:24,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:00:24,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:00:24,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2;log-additional-information=true; [2020-09-25 04:00:25,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:00:25,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:00:25,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:00:25,331 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:00:25,332 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:00:25,333 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 04:00:25,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a242a86d7/48337ece6284407c8ee257d5e1cb5cf4/FLAG76fad9549 [2020-09-25 04:00:26,056 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:00:26,057 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product36.cil.c [2020-09-25 04:00:26,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a242a86d7/48337ece6284407c8ee257d5e1cb5cf4/FLAG76fad9549 [2020-09-25 04:00:26,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a242a86d7/48337ece6284407c8ee257d5e1cb5cf4 [2020-09-25 04:00:26,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:00:26,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:00:26,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:00:26,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:00:26,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:00:26,340 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:00:26" (1/1) ... [2020-09-25 04:00:26,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2356d200 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:26, skipping insertion in model container [2020-09-25 04:00:26,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:00:26" (1/1) ... [2020-09-25 04:00:26,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:00:26,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:00:26,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:00:26,973 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:00:27,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:00:27,120 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:00:27,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27 WrapperNode [2020-09-25 04:00:27,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:00:27,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:00:27,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:00:27,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:00:27,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... [2020-09-25 04:00:27,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:00:27,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:00:27,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:00:27,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:00:27,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:00:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:00:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:00:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:00:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:00:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:00:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:00:27,346 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:00:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:00:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:00:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:00:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:00:27,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:00:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:00:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:00:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 04:00:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:00:27,348 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:00:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:00:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:00:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:00:27,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:00:27,350 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:00:27,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:00:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:00:27,353 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:00:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:00:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:00:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:00:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:00:27,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:00:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:00:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:00:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:00:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 04:00:27,355 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:00:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:00:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:00:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:00:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:00:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:00:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:00:27,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:00:27,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:00:27,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:00:27,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:00:28,497 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:00:28,497 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:00:28,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:00:28 BoogieIcfgContainer [2020-09-25 04:00:28,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:00:28,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:00:28,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:00:28,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:00:28,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:00:26" (1/3) ... [2020-09-25 04:00:28,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25014061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:00:28, skipping insertion in model container [2020-09-25 04:00:28,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:00:27" (2/3) ... [2020-09-25 04:00:28,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25014061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:00:28, skipping insertion in model container [2020-09-25 04:00:28,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:00:28" (3/3) ... [2020-09-25 04:00:28,515 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2020-09-25 04:00:28,527 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:00:28,539 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:00:28,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:00:28,591 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:00:28,592 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:00:28,592 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:00:28,592 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:00:28,592 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:00:28,592 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:00:28,592 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:00:28,592 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:00:28,623 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 04:00:28,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 04:00:28,641 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:28,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:00:28,643 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:28,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1033241294, now seen corresponding path program 1 times [2020-09-25 04:00:28,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:28,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055364308] [2020-09-25 04:00:28,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:29,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:29,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:30,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:31,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:33,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:34,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:34,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 04:00:34,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:00:34,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5047 [2020-09-25 04:00:34,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:34,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:00:34,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:34,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:00:34,750 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:34,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:34,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:34,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:34,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:34,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:34,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 04:00:34,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:34,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:34,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:34,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:00:35,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:35,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:35,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,074 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:35,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:35,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:00:35,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:35,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:35,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:35,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:35,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:00:35,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:00:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:35,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:35,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:35,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:35,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 04:00:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:35,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:35,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:35,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:00:35,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 04:00:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:35,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:35,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:35,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:35,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:35,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:35,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:35,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:00:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:00:35,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055364308] [2020-09-25 04:00:35,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:35,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:00:35,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030842280] [2020-09-25 04:00:35,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:00:35,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:35,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:00:35,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:00:35,267 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 3 states. [2020-09-25 04:00:36,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:36,712 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-25 04:00:36,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:00:36,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 04:00:36,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:36,749 INFO L225 Difference]: With dead ends: 448 [2020-09-25 04:00:36,749 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 04:00:36,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:00:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 04:00:36,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 04:00:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 04:00:36,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 04:00:36,875 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-25 04:00:36,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:36,876 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 04:00:36,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:00:36,876 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 04:00:36,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 04:00:36,881 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:36,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:00:36,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:00:36,882 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:36,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1951375081, now seen corresponding path program 1 times [2020-09-25 04:00:36,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:36,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [537047319] [2020-09-25 04:00:36,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:37,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:37,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:39,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:40,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:41,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:41,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 04:00:41,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 04:00:41,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 04:00:41,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:41,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:41,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:00:41,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:00:41,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,274 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:42,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:42,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 04:00:42,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:42,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:42,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:42,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:42,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:42,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:42,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:42,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:42,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:42,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:42,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:42,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:00:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:42,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:42,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:00:42,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:42,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:42,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:42,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:42,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:42,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:42,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:42,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:42,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:00:42,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [537047319] [2020-09-25 04:00:42,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:42,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:00:42,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125450324] [2020-09-25 04:00:42,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:00:42,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:42,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:00:42,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:00:42,481 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-25 04:00:43,154 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:00:43,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:43,938 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-25 04:00:43,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:00:43,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 04:00:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:43,944 INFO L225 Difference]: With dead ends: 352 [2020-09-25 04:00:43,944 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 04:00:43,946 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 [2020-09-25 04:00:43,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 04:00:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-25 04:00:44,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 04:00:44,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 04:00:44,012 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-25 04:00:44,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:44,015 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 04:00:44,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:00:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 04:00:44,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 04:00:44,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:44,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:00:44,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:00:44,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:44,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1408786884, now seen corresponding path program 1 times [2020-09-25 04:00:44,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:44,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211607383] [2020-09-25 04:00:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:44,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:44,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:45,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:45,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:00:49,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:00:49,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-09-25 04:00:49,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:00:49,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 04:00:49,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,445 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:49,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:49,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 04:00:49,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:49,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:49,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:49,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:49,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:49,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:49,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:49,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:49,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:00:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:00:49,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:00:49,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 04:00:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 04:00:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:49,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:49,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:49,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 04:00:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:49,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:49,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:49,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:49,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:49,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:00:49,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:49,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:49,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:00:49,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:49,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:49,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:00:49,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211607383] [2020-09-25 04:00:49,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:49,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:00:49,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297476197] [2020-09-25 04:00:49,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:00:49,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:49,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:00:49,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:00:49,688 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 5 states. [2020-09-25 04:00:50,212 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:00:51,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:00:51,855 INFO L93 Difference]: Finished difference Result 536 states and 619 transitions. [2020-09-25 04:00:51,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 04:00:51,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 04:00:51,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:00:51,867 INFO L225 Difference]: With dead ends: 536 [2020-09-25 04:00:51,867 INFO L226 Difference]: Without dead ends: 416 [2020-09-25 04:00:51,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:00:51,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2020-09-25 04:00:51,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 334. [2020-09-25 04:00:51,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 04:00:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 365 transitions. [2020-09-25 04:00:51,945 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 365 transitions. Word has length 156 [2020-09-25 04:00:51,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:00:51,945 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 365 transitions. [2020-09-25 04:00:51,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:00:51,946 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 365 transitions. [2020-09-25 04:00:51,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 04:00:51,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:00:51,949 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:00:51,949 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:00:51,949 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:00:51,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:00:51,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1641209859, now seen corresponding path program 1 times [2020-09-25 04:00:51,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:00:51,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64361602] [2020-09-25 04:00:51,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:00:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:52,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:52,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:52,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:55,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:00:57,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 04:00:57,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 04:00:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:00:57,474 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:00:57,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:00:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:00:57,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 04:00:57,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:00:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:57,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:57,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:00:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:57,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:57,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,695 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:00:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:57,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:00:57,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:00:57,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:00:57,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:00:57,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:00:57,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:00:57,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:00:57,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:00:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:00:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:00:57,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:57,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:00:57,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:00:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:00:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:00:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:00:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:00:57,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:00:57,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:00:57,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:00:57,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:00:57,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:00:57,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:00:57,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:00:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:00:57,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:00:57,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:00:57,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:00:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:00:57,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64361602] [2020-09-25 04:00:57,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:00:57,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 04:00:57,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697164652] [2020-09-25 04:00:57,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:00:57,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:00:57,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:00:57,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:00:57,849 INFO L87 Difference]: Start difference. First operand 334 states and 365 transitions. Second operand 9 states. [2020-09-25 04:00:58,376 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:00:59,553 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:00:59,894 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:01:00,241 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:00,598 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:01:00,895 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:01,463 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:01:01,791 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:02,155 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:02,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:01:02,914 INFO L93 Difference]: Finished difference Result 789 states and 932 transitions. [2020-09-25 04:01:02,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:01:02,915 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 04:01:02,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:01:02,920 INFO L225 Difference]: With dead ends: 789 [2020-09-25 04:01:02,921 INFO L226 Difference]: Without dead ends: 565 [2020-09-25 04:01:02,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:01:02,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-09-25 04:01:02,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 496. [2020-09-25 04:01:02,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-09-25 04:01:02,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 560 transitions. [2020-09-25 04:01:02,999 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 560 transitions. Word has length 161 [2020-09-25 04:01:02,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:01:03,000 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 560 transitions. [2020-09-25 04:01:03,000 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:01:03,000 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 560 transitions. [2020-09-25 04:01:03,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 04:01:03,003 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:01:03,003 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:01:03,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:01:03,004 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:01:03,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:01:03,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1044492281, now seen corresponding path program 1 times [2020-09-25 04:01:03,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:01:03,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307984036] [2020-09-25 04:01:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:01:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:03,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:03,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 228 [2020-09-25 04:01:08,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:01:08,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5057 [2020-09-25 04:01:08,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:08,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 178 [2020-09-25 04:01:08,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:01:08,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,490 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:01:08,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:01:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:01:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 04:01:08,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:01:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:08,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:08,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:01:08,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:08,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:01:08,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:01:08,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:08,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:08,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:01:08,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:01:08,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:08,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 04:01:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:08,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:08,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:01:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 04:01:08,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 04:01:08,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:01:08,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 04:01:08,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 04:01:08,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:01:08,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 04:01:08,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:01:08,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:01:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:01:08,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 04:01:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 04:01:08,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:01:08,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:01:08,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 04:01:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:08,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 04:01:08,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:01:08,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:08,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:08,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:08,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 04:01:08,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:08,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 04:01:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:08,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:08,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:09,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:09,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:09,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:09,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:09,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:09,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 04:01:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:01:09,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:01:09,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:01:09,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:01:09,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:01:09,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:01:09,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:01:09,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:01:09,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:01:09,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:01:09,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:01:09,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:01:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:01:09,089 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307984036] [2020-09-25 04:01:09,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:01:09,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:01:09,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019481025] [2020-09-25 04:01:09,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:01:09,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:01:09,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:01:09,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:01:09,092 INFO L87 Difference]: Start difference. First operand 496 states and 560 transitions. Second operand 10 states. [2020-09-25 04:01:10,831 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:01:11,180 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 04:01:11,511 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 04:01:11,857 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:01:12,225 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 04:01:12,513 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187