/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=NARROWEST --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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:47:28,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:47:28,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:47:28,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:47:28,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:47:28,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:47:28,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:47:28,065 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:47:28,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:47:28,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:47:28,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:47:28,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:47:28,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:47:28,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:47:28,073 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:47:28,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:47:28,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:47:28,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:47:28,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:47:28,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:47:28,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:47:28,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:47:28,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:47:28,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:47:28,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:47:28,088 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:47:28,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:47:28,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:47:28,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:47:28,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:47:28,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:47:28,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:47:28,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:47:28,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:47:28,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:47:28,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:47:28,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:47:28,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:47:28,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:47:28,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:47:28,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:47:28,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:47:28,125 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:47:28,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:47:28,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:47:28,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:47:28,127 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:47:28,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:47:28,127 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:47:28,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:47:28,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:47:28,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:47:28,128 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:47:28,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:47:28,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:47:28,129 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:47:28,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:47:28,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:47:28,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:47:28,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:47:28,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:47:28,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:47:28,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:47:28,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:47:28,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:47:28,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:47:28,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:47:28,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:47:28,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:47:28,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:47:28,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:47:28,132 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 01:47:28,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:47:28,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:47:28,612 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:47:28,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:47:28,616 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:47:28,618 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 01:47:28,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5034664/b2b97c4406374595985b3cb263c1b981/FLAG207073e9f [2020-09-25 01:47:29,333 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:47:29,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product34.cil.c [2020-09-25 01:47:29,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5034664/b2b97c4406374595985b3cb263c1b981/FLAG207073e9f [2020-09-25 01:47:29,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a5034664/b2b97c4406374595985b3cb263c1b981 [2020-09-25 01:47:29,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:47:29,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:47:29,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:47:29,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:47:29,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:47:29,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:47:29" (1/1) ... [2020-09-25 01:47:29,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae2094d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:29, skipping insertion in model container [2020-09-25 01:47:29,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:47:29" (1/1) ... [2020-09-25 01:47:29,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:47:29,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:47:30,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:47:30,230 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:47:30,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:47:30,392 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:47:30,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30 WrapperNode [2020-09-25 01:47:30,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:47:30,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:47:30,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:47:30,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:47:30,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... [2020-09-25 01:47:30,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:47:30,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:47:30,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:47:30,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:47:30,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:47:30,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:47:30,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:47:30,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:47:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:47:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:47:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:47:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:47:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:47:30,609 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:47:30,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:47:30,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:47:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:47:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:47:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:47:30,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:47:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:47:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:47:30,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:47:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:47:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:47:30,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:47:30,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:47:30,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:47:30,616 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:47:30,616 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:47:30,616 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:47:30,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:47:30,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:47:30,618 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:47:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:47:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:47:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:47:30,618 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:47:30,619 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:47:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:47:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:47:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:47:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:47:30,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:47:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:47:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:47:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:47:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:47:30,621 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:47:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:47:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:47:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:47:30,622 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:47:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:47:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:47:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:47:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:47:30,623 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:47:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:47:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:47:30,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:47:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:47:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:47:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:47:30,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:47:30,627 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:47:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:47:30,628 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:47:30,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:47:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:47:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:47:30,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:47:31,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:47:31,718 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:47:31,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:47:31 BoogieIcfgContainer [2020-09-25 01:47:31,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:47:31,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:47:31,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:47:31,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:47:31,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:47:29" (1/3) ... [2020-09-25 01:47:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a16a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:47:31, skipping insertion in model container [2020-09-25 01:47:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:47:30" (2/3) ... [2020-09-25 01:47:31,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4a16a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:47:31, skipping insertion in model container [2020-09-25 01:47:31,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:47:31" (3/3) ... [2020-09-25 01:47:31,742 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product34.cil.c [2020-09-25 01:47:31,752 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:47:31,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:47:31,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:47:31,818 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:47:31,818 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:47:31,818 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:47:31,819 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:47:31,819 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:47:31,819 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:47:31,819 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:47:31,819 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:47:31,849 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states. [2020-09-25 01:47:31,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 01:47:31,866 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:47:31,868 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] [2020-09-25 01:47:31,869 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:47:31,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:47:31,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2110285638, now seen corresponding path program 1 times [2020-09-25 01:47:31,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:47:31,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1255174927] [2020-09-25 01:47:31,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:47:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:32,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:32,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:34,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:35,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:35,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:37,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:37,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:47:37,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:47:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-09-25 01:47:37,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:47:37,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:37,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:47:37,730 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:47:37,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:47:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:37,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:37,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:37,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:47:37,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:37,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 01:47:37,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:37,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:37,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:37,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:37,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:47:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:37,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:38,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:47:38,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:38,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:47:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:38,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:38,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:38,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:38,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:47:38,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:38,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 01:47:38,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:38,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:38,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:47:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:38,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:38,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:38,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:38,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:47:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:47:38,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:38,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:38,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:38,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 01:47:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:38,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:47:38,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:38,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:38,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:47:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:38,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:38,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:38,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:38,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:47:38,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1255174927] [2020-09-25 01:47:38,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:47:38,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:47:38,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717035324] [2020-09-25 01:47:38,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:47:38,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:47:38,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:47:38,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:47:38,149 INFO L87 Difference]: Start difference. First operand 297 states. Second operand 4 states. [2020-09-25 01:47:39,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:47:39,619 INFO L93 Difference]: Finished difference Result 442 states and 524 transitions. [2020-09-25 01:47:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:47:39,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 01:47:39,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:47:39,652 INFO L225 Difference]: With dead ends: 442 [2020-09-25 01:47:39,652 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 01:47:39,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:47:39,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 01:47:39,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 240. [2020-09-25 01:47:39,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 01:47:39,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 01:47:39,802 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 148 [2020-09-25 01:47:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:47:39,803 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 01:47:39,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:47:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 01:47:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 01:47:39,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:47:39,808 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:47:39,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:47:39,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:47:39,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:47:39,809 INFO L82 PathProgramCache]: Analyzing trace with hash 16536712, now seen corresponding path program 1 times [2020-09-25 01:47:39,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:47:39,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2066085894] [2020-09-25 01:47:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:47:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:39,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:40,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:41,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:42,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:43,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:44,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:44,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 01:47:44,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:47:44,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 01:47:44,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:44,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:47:44,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:47:44,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:47:44,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:45,277 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:47:45,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:47:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:47:45,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 01:47:45,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:45,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:47:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:45,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:45,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:45,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:47:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:45,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:47:45,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:45,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:47:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:45,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:47:45,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:45,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:47:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:45,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:45,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:45,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:47:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:47:45,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:45,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:45,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:45,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 01:47:45,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:45,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:47:45,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:45,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:45,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:47:45,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:45,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:45,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:45,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:45,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:45,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:47:45,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:45,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:45,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:47:45,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:47:45,584 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2066085894] [2020-09-25 01:47:45,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:47:45,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:47:45,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763033259] [2020-09-25 01:47:45,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:47:45,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:47:45,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:47:45,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:47:45,590 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 5 states. [2020-09-25 01:47:46,334 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:47:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:47:47,264 INFO L93 Difference]: Finished difference Result 367 states and 415 transitions. [2020-09-25 01:47:47,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:47:47,266 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 01:47:47,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:47:47,274 INFO L225 Difference]: With dead ends: 367 [2020-09-25 01:47:47,274 INFO L226 Difference]: Without dead ends: 276 [2020-09-25 01:47:47,277 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:47:47,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-09-25 01:47:47,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 230. [2020-09-25 01:47:47,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 01:47:47,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 01:47:47,349 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 149 [2020-09-25 01:47:47,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:47:47,352 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 01:47:47,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:47:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 01:47:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 01:47:47,359 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:47:47,359 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] [2020-09-25 01:47:47,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:47:47,360 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:47:47,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:47:47,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1541802730, now seen corresponding path program 1 times [2020-09-25 01:47:47,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:47:47,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891500748] [2020-09-25 01:47:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:47:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:47,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:47,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:48,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:48,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:50,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 01:47:52,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:47:52,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 01:47:52,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:47:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:47:52,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:47:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:52,744 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:47:52,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:47:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:47:52,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 01:47:52,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:52,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:47:52,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:52,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:52,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:52,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:47:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:52,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:52,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:52,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:47:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:52,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:47:52,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:52,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:47:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:47:52,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:52,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:47:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:47:52,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:52,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:52,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:47:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:47:52,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:47:52,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:47:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:47:52,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:47:52,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:52,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:47:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:52,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:52,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:52,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:52,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:52,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:52,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:52,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:52,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:47:52,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:47:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:52,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:53,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:53,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:47:53,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:47:53,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:47:53,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:47:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:47:53,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:47:53,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:47:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:47:53,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891500748] [2020-09-25 01:47:53,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:47:53,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:47:53,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857246327] [2020-09-25 01:47:53,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:47:53,040 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:47:53,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:47:53,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:47:53,041 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 6 states. [2020-09-25 01:47:53,645 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:47:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:47:54,627 INFO L93 Difference]: Finished difference Result 414 states and 480 transitions. [2020-09-25 01:47:54,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:47:54,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 01:47:54,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:47:54,631 INFO L225 Difference]: With dead ends: 414 [2020-09-25 01:47:54,631 INFO L226 Difference]: Without dead ends: 299 [2020-09-25 01:47:54,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:47:54,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-09-25 01:47:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 230. [2020-09-25 01:47:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 01:47:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 245 transitions. [2020-09-25 01:47:54,682 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 245 transitions. Word has length 162 [2020-09-25 01:47:54,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:47:54,683 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 245 transitions. [2020-09-25 01:47:54,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:47:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 245 transitions. [2020-09-25 01:47:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 01:47:54,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:47:54,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:47:54,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:47:54,686 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:47:54,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:47:54,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1425032231, now seen corresponding path program 1 times [2020-09-25 01:47:54,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:47:54,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946677891] [2020-09-25 01:47:54,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:47:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:47:54,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:54,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:55,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:56,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:57,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:57,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:47:59,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:47:59,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 159 [2020-09-25 01:47:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:47:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:00,125 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:00,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:00,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 01:48:00,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:00,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:00,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:00,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:00,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:00,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:00,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:00,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:00,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:48:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:00,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:48:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:48:00,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 01:48:00,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:48:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:48:00,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:48:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:48:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:00,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:00,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:48:00,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:48:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:00,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:48:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:00,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:00,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:00,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:00,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:00,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:00,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:00,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:00,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:00,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:00,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946677891] [2020-09-25 01:48:00,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:00,520 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:48:00,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872520842] [2020-09-25 01:48:00,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:48:00,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:00,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:48:00,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:48:00,524 INFO L87 Difference]: Start difference. First operand 230 states and 245 transitions. Second operand 8 states. [2020-09-25 01:48:01,114 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:48:02,853 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:03,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:03,687 INFO L93 Difference]: Finished difference Result 593 states and 710 transitions. [2020-09-25 01:48:03,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 01:48:03,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-09-25 01:48:03,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:03,693 INFO L225 Difference]: With dead ends: 593 [2020-09-25 01:48:03,693 INFO L226 Difference]: Without dead ends: 478 [2020-09-25 01:48:03,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2020-09-25 01:48:03,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-25 01:48:03,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 337. [2020-09-25 01:48:03,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-25 01:48:03,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 364 transitions. [2020-09-25 01:48:03,747 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 364 transitions. Word has length 170 [2020-09-25 01:48:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:03,747 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 364 transitions. [2020-09-25 01:48:03,747 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:48:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 364 transitions. [2020-09-25 01:48:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 01:48:03,750 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:03,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:03,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:48:03,751 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:03,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:03,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1572233247, now seen corresponding path program 1 times [2020-09-25 01:48:03,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:03,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1105228825] [2020-09-25 01:48:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:03,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:03,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:04,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:04,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:07,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:08,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:08,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-09-25 01:48:08,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-25 01:48:08,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,193 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:09,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:09,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 01:48:09,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:09,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:09,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:09,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:09,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:09,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:09,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:09,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:48:09,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:09,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:48:09,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:48:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:09,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:09,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:48:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:48:09,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 01:48:09,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:48:09,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:48:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:48:09,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:48:09,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:48:09,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:48:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:48:09,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:09,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:09,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:48:09,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:09,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:09,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:48:09,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:48:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:09,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:09,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:48:09,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:48:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:09,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:09,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:09,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:09,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:09,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:48:09,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:48:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:09,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:48:09,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:09,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:09,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1105228825] [2020-09-25 01:48:09,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:09,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:48:09,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529519877] [2020-09-25 01:48:09,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:48:09,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:09,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:48:09,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:48:09,623 INFO L87 Difference]: Start difference. First operand 337 states and 364 transitions. Second operand 11 states. [2020-09-25 01:48:10,252 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:11,856 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:48:12,153 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:48:12,474 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:48:12,767 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:48:13,174 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:48:13,557 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 01:48:13,876 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:48:14,181 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:48:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:14,902 INFO L93 Difference]: Finished difference Result 698 states and 824 transitions. [2020-09-25 01:48:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 01:48:14,903 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-25 01:48:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:14,907 INFO L225 Difference]: With dead ends: 698 [2020-09-25 01:48:14,908 INFO L226 Difference]: Without dead ends: 476 [2020-09-25 01:48:14,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=256, Invalid=674, Unknown=0, NotChecked=0, Total=930 [2020-09-25 01:48:14,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-09-25 01:48:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 335. [2020-09-25 01:48:14,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-09-25 01:48:14,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 360 transitions. [2020-09-25 01:48:14,959 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 360 transitions. Word has length 194 [2020-09-25 01:48:14,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:14,960 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 360 transitions. [2020-09-25 01:48:14,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 01:48:14,960 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 360 transitions. [2020-09-25 01:48:14,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-25 01:48:14,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:14,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:14,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:48:14,963 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:14,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:14,964 INFO L82 PathProgramCache]: Analyzing trace with hash -200465502, now seen corresponding path program 1 times [2020-09-25 01:48:14,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:14,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1875661435] [2020-09-25 01:48:14,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:15,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:16,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking...