/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=SMALLEST --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_spec4_product63.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:05:56,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:05:56,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:05:56,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:05:56,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:05:56,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:05:56,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:05:56,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:05:56,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:05:56,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:05:56,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:05:56,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:05:56,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:05:56,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:05:56,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:05:56,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:05:56,092 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:05:56,094 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:05:56,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:05:56,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:05:56,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:05:56,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:05:56,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:05:56,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:05:56,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:05:56,120 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:05:56,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:05:56,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:05:56,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:05:56,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:05:56,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:05:56,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:05:56,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:05:56,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:05:56,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:05:56,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:05:56,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:05:56,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:05:56,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:05:56,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:05:56,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:05:56,137 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 18:05:56,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:05:56,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:05:56,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:05:56,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:05:56,189 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:05:56,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:05:56,190 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:05:56,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:05:56,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:05:56,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:05:56,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:05:56,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:05:56,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:05:56,193 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:05:56,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:05:56,193 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:05:56,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:05:56,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:05:56,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:05:56,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:05:56,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:05:56,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:05:56,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:05:56,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:05:56,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:05:56,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:05:56,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:05:56,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:05:56,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:05:56,196 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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;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=SMALLEST;log-additional-information=true; [2020-09-24 18:05:56,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:05:56,741 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:05:56,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:05:56,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:05:56,748 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:05:56,749 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 18:05:56,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4939ec1e1/db4aee1dddc94f879c070aaa9e27c9d1/FLAG177d158b4 [2020-09-24 18:05:57,470 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:05:57,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product63.cil.c [2020-09-24 18:05:57,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4939ec1e1/db4aee1dddc94f879c070aaa9e27c9d1/FLAG177d158b4 [2020-09-24 18:05:57,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4939ec1e1/db4aee1dddc94f879c070aaa9e27c9d1 [2020-09-24 18:05:57,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:05:57,772 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:05:57,773 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:57,774 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:05:57,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:05:57,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:57,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:57, skipping insertion in model container [2020-09-24 18:05:57,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:05:57" (1/1) ... [2020-09-24 18:05:57,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:05:57,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:05:58,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:58,414 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:05:58,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:05:58,552 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:05:58,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58 WrapperNode [2020-09-24 18:05:58,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:05:58,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:05:58,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:05:58,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:05:58,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (1/1) ... [2020-09-24 18:05:58,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:05:58,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:05:58,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:05:58,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:05:58,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (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 18:05:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:05:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:05:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 18:05:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 18:05:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 18:05:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 18:05:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 18:05:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 18:05:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 18:05:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:05:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 18:05:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 18:05:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 18:05:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 18:05:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 18:05:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 18:05:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 18:05:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 18:05:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 18:05:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 18:05:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:58,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 18:05:58,770 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 18:05:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 18:05:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 18:05:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 18:05:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 18:05:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:05:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:05:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 18:05:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 18:05:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 18:05:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 18:05:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 18:05:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 18:05:58,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 18:05:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 18:05:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 18:05:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 18:05:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 18:05:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 18:05:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 18:05:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 18:05:58,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 18:05:58,777 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 18:05:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 18:05:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 18:05:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 18:05:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 18:05:58,779 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 18:05:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 18:05:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 18:05:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 18:05:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 18:05:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 18:05:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 18:05:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 18:05:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 18:05:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 18:05:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 18:05:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 18:05:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 18:05:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 18:05:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:06:00,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:06:00,178 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 18:06:00,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:00 BoogieIcfgContainer [2020-09-24 18:06:00,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:06:00,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:06:00,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:06:00,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:06:00,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:05:57" (1/3) ... [2020-09-24 18:06:00,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56a37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:00, skipping insertion in model container [2020-09-24 18:06:00,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:05:58" (2/3) ... [2020-09-24 18:06:00,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d56a37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:06:00, skipping insertion in model container [2020-09-24 18:06:00,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:06:00" (3/3) ... [2020-09-24 18:06:00,196 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product63.cil.c [2020-09-24 18:06:00,207 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:06:00,217 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:06:00,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:06:00,270 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:06:00,271 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:06:00,271 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:06:00,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:06:00,271 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:06:00,272 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:06:00,272 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:06:00,272 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:06:00,302 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states. [2020-09-24 18:06:00,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 18:06:00,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:00,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:00,324 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:00,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:00,332 INFO L82 PathProgramCache]: Analyzing trace with hash 678471582, now seen corresponding path program 1 times [2020-09-24 18:06:00,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:00,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394835615] [2020-09-24 18:06:00,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:00,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:02,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:03,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:05,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:05,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 18:06:05,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 18:06:05,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:06:05,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:05,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 18:06:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:05,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 18:06:06,176 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:06,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:06,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-24 18:06:06,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:06,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:06,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:06,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:06,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:06,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:06,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:06,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:06,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:06,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:06,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:06,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:06,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:06,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:06,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:06,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:06,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:06,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:06,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 18:06:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:06,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:06,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:06,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:06,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:06:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:06,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:06,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:06,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:06,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:06,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:06,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:06,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:06,590 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 18:06:06,591 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394835615] [2020-09-24 18:06:06,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:06,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:06:06,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951609207] [2020-09-24 18:06:06,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:06:06,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:06,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:06:06,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:06:06,624 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 3 states. [2020-09-24 18:06:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:08,382 INFO L93 Difference]: Finished difference Result 575 states and 684 transitions. [2020-09-24 18:06:08,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:06:08,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 18:06:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:08,412 INFO L225 Difference]: With dead ends: 575 [2020-09-24 18:06:08,412 INFO L226 Difference]: Without dead ends: 348 [2020-09-24 18:06:08,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:06:08,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-24 18:06:08,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 301. [2020-09-24 18:06:08,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-24 18:06:08,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 331 transitions. [2020-09-24 18:06:08,581 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 331 transitions. Word has length 142 [2020-09-24 18:06:08,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:08,586 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 331 transitions. [2020-09-24 18:06:08,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:06:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 331 transitions. [2020-09-24 18:06:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 18:06:08,601 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:08,602 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:08,602 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:06:08,602 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:08,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:08,603 INFO L82 PathProgramCache]: Analyzing trace with hash 999725193, now seen corresponding path program 1 times [2020-09-24 18:06:08,603 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:08,603 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146306626] [2020-09-24 18:06:08,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:08,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:08,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:10,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:11,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:13,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:13,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 18:06:13,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 18:06:13,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-24 18:06:13,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:13,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 18:06:13,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 18:06:13,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,067 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:14,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:14,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:14,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:14,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:14,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:06:14,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 18:06:14,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:14,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:14,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:14,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 18:06:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:14,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:14,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:14,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 18:06:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:14,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:14,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:14,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:14,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:14,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:14,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:14,293 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 18:06:14,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146306626] [2020-09-24 18:06:14,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:14,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 18:06:14,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725844170] [2020-09-24 18:06:14,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 18:06:14,297 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:14,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 18:06:14,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 18:06:14,297 INFO L87 Difference]: Start difference. First operand 301 states and 331 transitions. Second operand 4 states. [2020-09-24 18:06:14,914 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:16,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:16,221 INFO L93 Difference]: Finished difference Result 486 states and 551 transitions. [2020-09-24 18:06:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 18:06:16,224 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 18:06:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:16,231 INFO L225 Difference]: With dead ends: 486 [2020-09-24 18:06:16,231 INFO L226 Difference]: Without dead ends: 331 [2020-09-24 18:06:16,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 18:06:16,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-24 18:06:16,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 291. [2020-09-24 18:06:16,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-24 18:06:16,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 318 transitions. [2020-09-24 18:06:16,312 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 318 transitions. Word has length 143 [2020-09-24 18:06:16,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:16,313 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 318 transitions. [2020-09-24 18:06:16,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 18:06:16,313 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 318 transitions. [2020-09-24 18:06:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-24 18:06:16,315 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:16,315 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] [2020-09-24 18:06:16,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:06:16,316 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:16,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:16,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1892651662, now seen corresponding path program 1 times [2020-09-24 18:06:16,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:16,317 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755829747] [2020-09-24 18:06:16,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:16,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:17,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:17,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 18:06:21,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 18:06:21,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-24 18:06:21,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:21,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 18:06:21,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 18:06:21,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:21,718 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:21,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:21,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 18:06:21,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:21,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:21,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:21,870 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:21,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:21,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 18:06:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:21,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 18:06:21,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:21,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 18:06:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:21,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:21,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:21,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 18:06:21,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:21,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:21,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 18:06:21,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:21,957 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 18:06:21,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755829747] [2020-09-24 18:06:21,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:21,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 18:06:21,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064606489] [2020-09-24 18:06:21,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 18:06:21,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:21,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 18:06:21,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 18:06:21,960 INFO L87 Difference]: Start difference. First operand 291 states and 318 transitions. Second operand 8 states. [2020-09-24 18:06:22,514 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 18:06:23,665 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:24,016 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 18:06:24,364 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:24,719 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:25,015 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 18:06:25,934 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:26,254 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 18:06:26,593 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:27,648 INFO L93 Difference]: Finished difference Result 614 states and 717 transitions. [2020-09-24 18:06:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 18:06:27,649 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-09-24 18:06:27,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:27,655 INFO L225 Difference]: With dead ends: 614 [2020-09-24 18:06:27,655 INFO L226 Difference]: Without dead ends: 433 [2020-09-24 18:06:27,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 18:06:27,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-24 18:06:27,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 402. [2020-09-24 18:06:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-09-24 18:06:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 449 transitions. [2020-09-24 18:06:27,714 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 449 transitions. Word has length 152 [2020-09-24 18:06:27,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:27,715 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 449 transitions. [2020-09-24 18:06:27,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 18:06:27,715 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 449 transitions. [2020-09-24 18:06:27,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 18:06:27,718 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:27,719 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:27,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 18:06:27,719 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:27,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1008542969, now seen corresponding path program 1 times [2020-09-24 18:06:27,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:27,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [924452790] [2020-09-24 18:06:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:27,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:28,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:32,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:32,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 18:06:32,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-24 18:06:32,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-09-24 18:06:32,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:33,112 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:33,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 18:06:33,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:33,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:33,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:33,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 18:06:33,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:33,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:33,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:33,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:33,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:06:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:06:33,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-24 18:06:33,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:06:33,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:33,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:06:33,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 18:06:33,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 18:06:33,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 18:06:33,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 18:06:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 18:06:33,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 18:06:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 18:06:33,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 18:06:33,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 18:06:33,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 18:06:33,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 18:06:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 18:06:33,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 18:06:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 18:06:33,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 18:06:33,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 18:06:33,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:33,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 18:06:33,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 18:06:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:33,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 18:06:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:06:33,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:33,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:33,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 18:06:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:33,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:33,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-24 18:06:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:33,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:33,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:33,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:33,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:33,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:33,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:33,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 18:06:33,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:33,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:33,866 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 18:06:33,866 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [924452790] [2020-09-24 18:06:33,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:06:33,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 18:06:33,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686279710] [2020-09-24 18:06:33,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 18:06:33,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:06:33,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 18:06:33,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:06:33,869 INFO L87 Difference]: Start difference. First operand 402 states and 449 transitions. Second operand 9 states. [2020-09-24 18:06:35,486 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:35,797 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:36,109 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 18:06:36,429 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:36,752 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 18:06:37,051 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 18:06:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:06:38,324 INFO L93 Difference]: Finished difference Result 761 states and 902 transitions. [2020-09-24 18:06:38,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 18:06:38,325 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 217 [2020-09-24 18:06:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:06:38,333 INFO L225 Difference]: With dead ends: 761 [2020-09-24 18:06:38,333 INFO L226 Difference]: Without dead ends: 469 [2020-09-24 18:06:38,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-09-24 18:06:38,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-24 18:06:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 413. [2020-09-24 18:06:38,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-09-24 18:06:38,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 460 transitions. [2020-09-24 18:06:38,385 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 460 transitions. Word has length 217 [2020-09-24 18:06:38,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:06:38,386 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 460 transitions. [2020-09-24 18:06:38,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 18:06:38,386 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 460 transitions. [2020-09-24 18:06:38,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 18:06:38,389 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:06:38,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:06:38,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 18:06:38,390 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:06:38,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:06:38,390 INFO L82 PathProgramCache]: Analyzing trace with hash -1783241049, now seen corresponding path program 1 times [2020-09-24 18:06:38,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:06:38,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943311720] [2020-09-24 18:06:38,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:06:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:38,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:38,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 174 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:43,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 18:06:43,792 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 18:06:43,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:06:43,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 18:06:43,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-24 18:06:43,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:43,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:43,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:43,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:43,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 18:06:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:43,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:43,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:43,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 18:06:43,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:43,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 18:06:43,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:43,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:43,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:43,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 18:06:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 18:06:43,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:06:43,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:43,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:43,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:43,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 18:06:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:43,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:43,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:43,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 18:06:43,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:43,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 18:06:43,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:06:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:06:43,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:06:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:43,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 18:06:44,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:44,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 18:06:44,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:44,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 18:06:44,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:44,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 18:06:44,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:44,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:44,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:06:44,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:06:44,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 18:06:44,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:06:44,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-24 18:06:44,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:06:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 18:06:44,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:06:44,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:06:44,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:06:44,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 18:06:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:06:44,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking...