/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:10:50,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:10:50,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:10:50,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:10:50,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:10:50,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:10:50,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:10:50,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:10:50,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:10:50,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:10:50,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:10:50,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:10:50,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:10:50,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:10:50,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:10:50,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:10:50,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:10:50,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:10:50,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:10:50,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:10:50,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:10:50,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:10:50,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:10:50,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:10:50,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:10:50,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:10:50,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:10:50,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:10:50,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:10:50,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:10:50,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:10:50,776 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:10:50,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:10:50,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:10:50,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:10:50,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:10:50,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:10:50,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:10:50,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:10:50,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:10:50,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:10:50,788 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:10:50,827 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:10:50,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:10:50,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:10:50,830 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:10:50,830 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:10:50,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:10:50,830 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:10:50,831 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:10:50,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:10:50,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:10:50,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:10:50,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:10:50,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:10:50,833 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:10:50,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:10:50,833 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:10:50,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:10:50,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:10:50,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:10:50,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:10:50,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:10:50,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:10:50,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:10:50,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:10:50,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:10:50,835 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:10:50,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:10:50,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:10:50,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:10:50,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true; [2020-09-24 20:10:51,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:10:51,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:10:51,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:10:51,317 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:10:51,317 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:10:51,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 20:10:51,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbc38229/8852b8feea394852a7257203ed55fa1a/FLAGf8e384ec1 [2020-09-24 20:10:51,982 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:10:51,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product36.cil.c [2020-09-24 20:10:51,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbc38229/8852b8feea394852a7257203ed55fa1a/FLAGf8e384ec1 [2020-09-24 20:10:52,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5dbc38229/8852b8feea394852a7257203ed55fa1a [2020-09-24 20:10:52,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:10:52,271 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:10:52,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:52,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:10:52,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:10:52,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:52,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6cae7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52, skipping insertion in model container [2020-09-24 20:10:52,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:52,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:10:52,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:10:52,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:52,837 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:10:52,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:10:52,993 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:10:52,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52 WrapperNode [2020-09-24 20:10:52,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:10:52,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:10:52,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:10:52,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:10:53,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... [2020-09-24 20:10:53,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:10:53,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:10:53,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:10:53,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:10:53,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:10:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:10:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:10:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:10:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:10:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:10:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:10:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:10:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:10:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:10:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:10:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:10:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:10:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:10:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:10:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 20:10:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:10:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:10:53,177 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:10:53,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:10:54,242 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:10:54,242 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:10:54,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:54 BoogieIcfgContainer [2020-09-24 20:10:54,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:10:54,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:10:54,251 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:10:54,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:10:54,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:10:52" (1/3) ... [2020-09-24 20:10:54,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fe392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:54, skipping insertion in model container [2020-09-24 20:10:54,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:10:52" (2/3) ... [2020-09-24 20:10:54,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a8fe392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:10:54, skipping insertion in model container [2020-09-24 20:10:54,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:10:54" (3/3) ... [2020-09-24 20:10:54,258 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2020-09-24 20:10:54,268 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:10:54,278 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:10:54,298 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:10:54,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:10:54,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:10:54,331 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:10:54,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:10:54,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:10:54,331 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:10:54,331 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:10:54,331 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:10:54,357 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2020-09-24 20:10:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 20:10:54,375 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:10:54,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:10:54,377 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:10:54,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:10:54,385 INFO L82 PathProgramCache]: Analyzing trace with hash 581335990, now seen corresponding path program 1 times [2020-09-24 20:10:54,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:10:54,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350788872] [2020-09-24 20:10:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:10:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:10:54,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:55,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:56,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:57,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:58,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:10:59,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:10:59,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 20:10:59,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:10:59,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 20:10:59,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:10:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 20:10:59,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 20:10:59,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-24 20:10:59,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:11:00,338 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:00,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:00,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-24 20:11:00,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 20:11:00,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:00,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 20:11:00,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:00,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:00,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:00,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:00,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:11:00,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:00,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:00,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:00,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:00,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:00,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:00,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:00,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:00,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:00,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:11:00,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:00,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:00,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:00,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:11:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:00,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:00,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:00,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:00,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:00,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:01,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350788872] [2020-09-24 20:11:01,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:01,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:11:01,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968933416] [2020-09-24 20:11:01,017 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:11:01,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:01,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:11:01,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:11:01,042 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 9 states. [2020-09-24 20:11:01,716 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:02,703 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:02,991 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:03,379 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:03,749 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:04,076 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:04,953 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:05,268 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:05,770 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:06,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:06,588 INFO L93 Difference]: Finished difference Result 614 states and 744 transitions. [2020-09-24 20:11:06,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 20:11:06,590 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2020-09-24 20:11:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:06,629 INFO L225 Difference]: With dead ends: 614 [2020-09-24 20:11:06,630 INFO L226 Difference]: Without dead ends: 427 [2020-09-24 20:11:06,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2020-09-24 20:11:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-09-24 20:11:06,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 355. [2020-09-24 20:11:06,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2020-09-24 20:11:06,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 390 transitions. [2020-09-24 20:11:06,801 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 390 transitions. Word has length 148 [2020-09-24 20:11:06,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:06,802 INFO L479 AbstractCegarLoop]: Abstraction has 355 states and 390 transitions. [2020-09-24 20:11:06,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:11:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 390 transitions. [2020-09-24 20:11:06,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-24 20:11:06,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:06,809 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] [2020-09-24 20:11:06,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:11:06,809 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:06,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:06,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1683397205, now seen corresponding path program 1 times [2020-09-24 20:11:06,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:06,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315547571] [2020-09-24 20:11:06,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:06,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:07,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:07,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:08,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:11,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:11,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-09-24 20:11:11,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 20:11:11,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-24 20:11:11,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 20:11:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:11:11,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-24 20:11:11,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,210 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:12,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:12,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-24 20:11:12,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:11:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:12,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:11:12,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:12,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:11:12,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:12,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:12,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:12,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:12,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-24 20:11:12,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:11:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:12,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:12,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 20:11:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:12,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 20:11:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:12,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:12,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:12,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:12,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:12,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:12,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:12,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:11:12,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 20:11:12,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315547571] [2020-09-24 20:11:12,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:11:12,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 20:11:12,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137399065] [2020-09-24 20:11:12,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 20:11:12,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:12,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 20:11:12,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 20:11:12,773 INFO L87 Difference]: Start difference. First operand 355 states and 390 transitions. Second operand 11 states. [2020-09-24 20:11:13,310 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:15,008 WARN L193 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-09-24 20:11:15,601 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 193 [2020-09-24 20:11:15,985 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:16,303 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:16,648 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:17,415 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:17,720 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:18,080 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:11:19,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:19,871 INFO L93 Difference]: Finished difference Result 1020 states and 1315 transitions. [2020-09-24 20:11:19,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-24 20:11:19,871 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2020-09-24 20:11:19,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:19,882 INFO L225 Difference]: With dead ends: 1020 [2020-09-24 20:11:19,882 INFO L226 Difference]: Without dead ends: 780 [2020-09-24 20:11:19,885 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=342, Invalid=990, Unknown=0, NotChecked=0, Total=1332 [2020-09-24 20:11:19,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2020-09-24 20:11:19,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 516. [2020-09-24 20:11:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 516 states. [2020-09-24 20:11:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 589 transitions. [2020-09-24 20:11:19,985 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 589 transitions. Word has length 167 [2020-09-24 20:11:19,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:19,986 INFO L479 AbstractCegarLoop]: Abstraction has 516 states and 589 transitions. [2020-09-24 20:11:19,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 20:11:19,987 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 589 transitions. [2020-09-24 20:11:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-09-24 20:11:19,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:19,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:19,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:11:19,992 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:19,992 INFO L82 PathProgramCache]: Analyzing trace with hash 2084142011, now seen corresponding path program 1 times [2020-09-24 20:11:19,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:19,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432337047] [2020-09-24 20:11:19,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:20,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:20,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:20,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:20,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:20,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:20,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:22,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-09-24 20:11:25,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 20:11:25,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-24 20:11:25,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-09-24 20:11:25,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 20:11:25,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:25,412 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:25,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:11:25,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 20:11:25,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:25,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:11:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:25,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:25,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:11:25,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:25,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:25,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:11:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:25,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:25,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:11:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:11:25,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:25,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:11:25,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:25,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:25,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:25,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:25,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 20:11:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:11:25,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:25,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 20:11:25,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 20:11:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:25,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 20:11:25,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:11:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:11:25,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 20:11:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-24 20:11:25,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:11:25,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:25,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-24 20:11:25,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 20:11:25,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:25,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:11:25,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 20:11:25,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:25,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:11:25,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:25,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:25,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:25,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 20:11:25,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:11:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:25,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:11:25,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-24 20:11:25,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:25,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:25,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:11:25,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:25,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-24 20:11:25,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:11:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:11:25,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:11:25,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:25,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:11:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:25,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:11:26,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:26,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 20:11:26,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:11:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:26,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:11:26,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:11:26,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:11:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:26,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:11:26,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:26,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:11:26,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:11:26,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:26,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:11:26,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:26,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:11:26,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:26,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:11:26,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:11:26,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:26,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:26,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-09-24 20:11:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:26,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:26,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:26,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:26,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:26,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:26,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:26,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2020-09-24 20:11:26,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:26,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:26,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:26,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:11:26,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:11:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:11:26,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:11:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:11:26,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:11:26,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:26,176 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:11:26,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432337047] [2020-09-24 20:11:26,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:11:26,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:11:26,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807229447] [2020-09-24 20:11:26,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:11:26,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:11:26,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:11:26,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:11:26,179 INFO L87 Difference]: Start difference. First operand 516 states and 589 transitions. Second operand 19 states. [2020-09-24 20:11:26,839 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:27,741 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:28,350 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:11:29,027 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:29,785 WARN L193 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 191 [2020-09-24 20:11:30,404 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-09-24 20:11:31,068 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 20:11:31,753 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 196 [2020-09-24 20:11:32,374 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 20:11:32,827 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:33,163 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:33,541 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:11:33,921 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:34,243 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:34,605 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:34,933 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:11:35,258 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:11:35,566 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:11:35,937 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:36,431 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:11:36,796 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:11:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:11:40,012 INFO L93 Difference]: Finished difference Result 1359 states and 1808 transitions. [2020-09-24 20:11:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-24 20:11:40,012 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 226 [2020-09-24 20:11:40,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:11:40,023 INFO L225 Difference]: With dead ends: 1359 [2020-09-24 20:11:40,023 INFO L226 Difference]: Without dead ends: 958 [2020-09-24 20:11:40,027 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1617 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=952, Invalid=4304, Unknown=0, NotChecked=0, Total=5256 [2020-09-24 20:11:40,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2020-09-24 20:11:40,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 536. [2020-09-24 20:11:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2020-09-24 20:11:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 603 transitions. [2020-09-24 20:11:40,123 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 603 transitions. Word has length 226 [2020-09-24 20:11:40,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:11:40,124 INFO L479 AbstractCegarLoop]: Abstraction has 536 states and 603 transitions. [2020-09-24 20:11:40,124 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:11:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 603 transitions. [2020-09-24 20:11:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 20:11:40,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:11:40,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:11:40,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:11:40,128 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:11:40,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:11:40,128 INFO L82 PathProgramCache]: Analyzing trace with hash 289623879, now seen corresponding path program 1 times [2020-09-24 20:11:40,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:11:40,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [941642884] [2020-09-24 20:11:40,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:11:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:40,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:40,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:11:43,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:11:43,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 243 [2020-09-24 20:11:43,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:11:43,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3025 [2020-09-24 20:11:43,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:11:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:11:43,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-24 20:11:43,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-24 20:11:43,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:11:43,478 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:11:43,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:11:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:11:43,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking...