/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:08:54,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:08:54,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:08:54,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:08:54,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:08:54,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:08:54,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:08:54,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:08:54,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:08:54,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:08:54,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:08:54,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:08:54,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:08:54,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:08:54,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:08:54,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:08:54,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:08:54,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:08:54,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:08:54,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:08:54,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:08:54,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:08:54,531 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:08:54,532 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:08:54,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:08:54,545 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:08:54,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:08:54,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:08:54,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:08:54,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:08:54,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:08:54,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:08:54,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:08:54,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:08:54,558 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:08:54,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:08:54,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:08:54,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:08:54,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:08:54,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:08:54,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:08:54,562 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:08:54,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:08:54,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:08:54,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:08:54,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:08:54,617 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:08:54,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:08:54,618 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:08:54,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:08:54,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:08:54,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:08:54,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:08:54,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:08:54,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:08:54,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:08:54,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:08:54,621 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:08:54,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:08:54,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:08:54,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:08:54,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:08:54,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:08:54,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:08:54,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:08:54,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:08:54,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:08:54,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:08:54,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:08:54,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:08:54,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:08:54,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:08:55,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:08:55,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:08:55,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:08:55,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:08:55,081 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:08:55,082 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product01.cil.c [2020-09-24 20:08:55,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f364d70/ba887e854cc643e1b9514e46f63e9f36/FLAG8e6dd7359 [2020-09-24 20:08:55,791 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:08:55,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product01.cil.c [2020-09-24 20:08:55,805 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f364d70/ba887e854cc643e1b9514e46f63e9f36/FLAG8e6dd7359 [2020-09-24 20:08:56,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1f364d70/ba887e854cc643e1b9514e46f63e9f36 [2020-09-24 20:08:56,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:08:56,082 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:08:56,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:56,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:08:56,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:08:56,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a1e51c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56, skipping insertion in model container [2020-09-24 20:08:56,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,103 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:08:56,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:08:56,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:56,648 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:08:56,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:08:56,793 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:08:56,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56 WrapperNode [2020-09-24 20:08:56,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:08:56,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:08:56,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:08:56,795 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:08:56,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... [2020-09-24 20:08:56,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:08:56,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:08:56,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:08:56,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:08:56,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:08:56,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:08:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:08:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:08:56,978 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:08:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:08:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:08:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:08:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:08:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:08:56,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:08:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:08:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:08:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:08:56,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:08:56,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:08:56,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:08:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:08:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:08:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:08:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:08:56,984 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:08:56,985 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:08:56,986 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:08:56,987 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:08:56,988 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:08:56,989 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:08:56,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:08:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:08:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:08:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:08:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:08:56,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:08:58,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:08:58,101 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:08:58,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:58 BoogieIcfgContainer [2020-09-24 20:08:58,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:08:58,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:08:58,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:08:58,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:08:58,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:08:56" (1/3) ... [2020-09-24 20:08:58,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e969e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:58, skipping insertion in model container [2020-09-24 20:08:58,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:08:56" (2/3) ... [2020-09-24 20:08:58,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e969e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:08:58, skipping insertion in model container [2020-09-24 20:08:58,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:08:58" (3/3) ... [2020-09-24 20:08:58,117 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product01.cil.c [2020-09-24 20:08:58,128 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:08:58,139 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:08:58,162 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:08:58,195 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:08:58,195 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:08:58,195 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:08:58,195 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:08:58,195 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:08:58,196 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:08:58,196 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:08:58,196 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:08:58,224 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2020-09-24 20:08:58,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:08:58,241 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:08:58,243 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:08:58,243 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:08:58,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:08:58,251 INFO L82 PathProgramCache]: Analyzing trace with hash -102360889, now seen corresponding path program 1 times [2020-09-24 20:08:58,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:08:58,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637352447] [2020-09-24 20:08:58,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:08:58,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:08:58,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:58,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:08:59,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:00,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:00,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:01,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:03,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:03,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:09:03,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:09:03,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-24 20:09:03,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:03,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:09:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-24 20:09:03,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-09-24 20:09:03,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 20:09:04,179 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:04,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:04,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 20:09:04,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-24 20:09:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-09-24 20:09:04,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:04,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 20:09:04,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:04,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:04,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:04,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:09:04,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:04,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:04,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:09:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:04,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:04,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:09:04,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:04,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:04,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:04,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:09:04,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:09:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:04,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:04,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:09:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:04,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:04,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:04,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:04,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:04,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:04,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:04,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:09:04,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637352447] [2020-09-24 20:09:04,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:04,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:09:04,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029846991] [2020-09-24 20:09:04,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:09:04,905 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:04,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:09:04,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:09:04,936 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 9 states. [2020-09-24 20:09:05,680 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:06,724 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:07,092 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:07,437 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:07,758 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:08,076 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:08,664 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:08,982 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:09,366 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:09,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:09,983 INFO L93 Difference]: Finished difference Result 452 states and 556 transitions. [2020-09-24 20:09:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:09:09,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:09:09,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:10,024 INFO L225 Difference]: With dead ends: 452 [2020-09-24 20:09:10,024 INFO L226 Difference]: Without dead ends: 315 [2020-09-24 20:09:10,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:09:10,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-24 20:09:10,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 255. [2020-09-24 20:09:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-09-24 20:09:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 278 transitions. [2020-09-24 20:09:10,175 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 278 transitions. Word has length 148 [2020-09-24 20:09:10,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:10,176 INFO L479 AbstractCegarLoop]: Abstraction has 255 states and 278 transitions. [2020-09-24 20:09:10,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:09:10,177 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 278 transitions. [2020-09-24 20:09:10,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 20:09:10,182 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:10,182 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] [2020-09-24 20:09:10,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:09:10,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash 971895418, now seen corresponding path program 1 times [2020-09-24 20:09:10,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:10,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866259963] [2020-09-24 20:09:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:10,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:10,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:10,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:11,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-24 20:09:15,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:09:15,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-24 20:09:15,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:09:15,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:09:15,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-24 20:09:15,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,564 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:15,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:15,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 20:09:15,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:15,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:15,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:15,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:15,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:15,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:15,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:15,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:09:15,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:15,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:15,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:15,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:15,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:15,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:09:15,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 20:09:15,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:15,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:15,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:09:15,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 20:09:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:15,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:15,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:15,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 20:09:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:15,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:15,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:15,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:15,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:15,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:15,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:09:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:15,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:09:15,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:09:15,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866259963] [2020-09-24 20:09:15,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:09:15,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 20:09:15,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472395283] [2020-09-24 20:09:15,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 20:09:15,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:15,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 20:09:15,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 20:09:15,869 INFO L87 Difference]: Start difference. First operand 255 states and 278 transitions. Second operand 6 states. [2020-09-24 20:09:16,397 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:17,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:17,950 INFO L93 Difference]: Finished difference Result 508 states and 617 transitions. [2020-09-24 20:09:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:09:17,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2020-09-24 20:09:17,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:17,961 INFO L225 Difference]: With dead ends: 508 [2020-09-24 20:09:17,962 INFO L226 Difference]: Without dead ends: 505 [2020-09-24 20:09:17,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:09:17,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-09-24 20:09:18,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 341. [2020-09-24 20:09:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-24 20:09:18,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 384 transitions. [2020-09-24 20:09:18,032 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 384 transitions. Word has length 163 [2020-09-24 20:09:18,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:18,032 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 384 transitions. [2020-09-24 20:09:18,033 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 20:09:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 384 transitions. [2020-09-24 20:09:18,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 20:09:18,037 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:09:18,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:09:18,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:09:18,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:09:18,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:09:18,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1404618503, now seen corresponding path program 1 times [2020-09-24 20:09:18,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:09:18,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694296553] [2020-09-24 20:09:18,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:09:18,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:18,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:18,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:18,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:19,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:20,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 20:09:23,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-24 20:09:23,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5074 [2020-09-24 20:09:23,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-09-24 20:09:23,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:09:23,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,459 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:23,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:09:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:09:23,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 20:09:23,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:09:23,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:09:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:23,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:23,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:09:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:23,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:09:23,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:23,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:09:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:23,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:09:23,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:09:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:09:23,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:23,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:09:23,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:09:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:23,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:09:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:09:23,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:09:23,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 20:09:23,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 20:09:23,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:23,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:09:23,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 20:09:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-24 20:09:23,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 20:09:23,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:09:23,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:09:23,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-24 20:09:23,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:23,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:09:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:23,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:23,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:23,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-24 20:09:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:23,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:09:23,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:09:23,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:09:23,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:09:23,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:09:23,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 20:09:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:23,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:09:23,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:23,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:23,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 20:09:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:09:23,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:09:23,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:09:23,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:09:23,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:09:23,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:09:23,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:09:23,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:09:23,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:09:23,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:09:23,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:09:24,076 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 20:09:24,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694296553] [2020-09-24 20:09:24,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:09:24,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 20:09:24,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378723023] [2020-09-24 20:09:24,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 20:09:24,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:09:24,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 20:09:24,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-09-24 20:09:24,081 INFO L87 Difference]: Start difference. First operand 341 states and 384 transitions. Second operand 12 states. [2020-09-24 20:09:24,665 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:25,809 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:26,122 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:26,474 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:26,778 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:09:27,084 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:27,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:09:27,355 INFO L93 Difference]: Finished difference Result 546 states and 652 transitions. [2020-09-24 20:09:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:09:27,355 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 200 [2020-09-24 20:09:27,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:09:27,357 INFO L225 Difference]: With dead ends: 546 [2020-09-24 20:09:27,357 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 20:09:27,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2020-09-24 20:09:27,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 20:09:27,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 20:09:27,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 20:09:27,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 20:09:27,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2020-09-24 20:09:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:09:27,361 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 20:09:27,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 20:09:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 20:09:27,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 20:09:27,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:09:27,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 20:09:27,573 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:27,749 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:27,925 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:28,072 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 6 [2020-09-24 20:09:28,242 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:28,360 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 6 [2020-09-24 20:09:28,651 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 10 [2020-09-24 20:09:28,807 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:28,976 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:29,142 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:29,305 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:29,468 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:29,630 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:29,776 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:30,117 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:30,275 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:30,430 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:30,594 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:30,741 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:30,899 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:31,047 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:31,196 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:31,356 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:31,509 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:31,834 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:31,993 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:32,321 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:32,653 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:32,807 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:32,973 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:33,124 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:33,451 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:33,606 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:33,934 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:34,203 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:34,466 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:34,743 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:35,003 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:35,278 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:35,557 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:35,820 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:36,080 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:36,360 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:36,519 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:36,671 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:36,937 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:37,195 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:37,470 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:37,732 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:38,007 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:38,283 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:38,541 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:38,799 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-24 20:09:39,080 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-09-24 20:09:39,240 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:39,398 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:39,551 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:39,709 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:39,867 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:40,020 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:40,347 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:40,449 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 6 [2020-09-24 20:09:40,606 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:40,763 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:40,920 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:41,078 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:41,228 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:41,382 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:41,529 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:09:41,692 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:41,849 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:42,006 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:09:42,159 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:42,321 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:09:42,646 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:09:42,921 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:43,138 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:43,411 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:43,633 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2020-09-24 20:09:43,793 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 13 [2020-09-24 20:09:43,965 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:44,126 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:44,328 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:44,589 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:09:44,758 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-24 20:09:44,975 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 15 [2020-09-24 20:09:45,189 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:45,775 WARN L193 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 19 [2020-09-24 20:09:46,340 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 19 [2020-09-24 20:09:46,925 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 16 [2020-09-24 20:09:47,562 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 20 [2020-09-24 20:09:48,220 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 20 [2020-09-24 20:09:48,567 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-24 20:09:48,729 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 1 [2020-09-24 20:09:48,996 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19 [2020-09-24 20:09:49,229 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 19