/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:30:50,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:30:50,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:30:50,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:30:50,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:30:50,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:30:50,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:30:50,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:30:50,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:30:50,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:30:50,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:30:50,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:30:50,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:30:50,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:30:50,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:30:50,108 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:30:50,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:30:50,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:30:50,111 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:30:50,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:30:50,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:30:50,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:30:50,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:30:50,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:30:50,121 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:30:50,121 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:30:50,122 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:30:50,123 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:30:50,123 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:30:50,124 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:30:50,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:30:50,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:30:50,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:30:50,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:30:50,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:30:50,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:30:50,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:30:50,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:30:50,130 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:30:50,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:30:50,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:30:50,133 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 23:30:50,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:30:50,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:30:50,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:30:50,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:30:50,164 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:30:50,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:30:50,164 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:30:50,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:30:50,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:30:50,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:30:50,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:30:50,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:30:50,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:30:50,166 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:30:50,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:30:50,166 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:30:50,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:30:50,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:30:50,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:30:50,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:30:50,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:30:50,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:30:50,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:30:50,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:30:50,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:30:50,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:30:50,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:30:50,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:30:50,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:30:50,172 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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;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=SHALLOWEST;log-additional-information=true; [2020-09-24 23:30:50,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:30:50,672 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:30:50,676 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:30:50,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:30:50,678 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:30:50,680 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-24 23:30:50,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c96c79d/03d5054ddfe144a7ba0e21db372b37ea/FLAG5033c8541 [2020-09-24 23:30:51,378 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:30:51,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product54.cil.c [2020-09-24 23:30:51,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c96c79d/03d5054ddfe144a7ba0e21db372b37ea/FLAG5033c8541 [2020-09-24 23:30:51,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c4c96c79d/03d5054ddfe144a7ba0e21db372b37ea [2020-09-24 23:30:51,680 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:30:51,686 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:30:51,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:51,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:30:51,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:30:51,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:51" (1/1) ... [2020-09-24 23:30:51,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1516d3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:51, skipping insertion in model container [2020-09-24 23:30:51,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:30:51" (1/1) ... [2020-09-24 23:30:51,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:30:51,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:30:52,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:52,205 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:30:52,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:30:52,374 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:30:52,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52 WrapperNode [2020-09-24 23:30:52,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:30:52,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:30:52,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:30:52,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:30:52,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... [2020-09-24 23:30:52,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:30:52,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:30:52,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:30:52,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:30:52,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:30:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:30:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:30:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:30:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:30:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:30:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:30:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:30:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:30:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:30:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:30:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:30:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:30:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:30:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:30:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 23:30:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 23:30:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:30:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:30:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:30:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:30:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:30:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:30:52,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 23:30:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:30:52,552 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:30:52,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:30:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:30:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:30:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:30:52,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:30:52,558 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:30:52,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:30:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:30:52,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:30:53,735 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:30:53,735 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:30:53,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:53 BoogieIcfgContainer [2020-09-24 23:30:53,743 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:30:53,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:30:53,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:30:53,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:30:53,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:30:51" (1/3) ... [2020-09-24 23:30:53,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f948c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:53, skipping insertion in model container [2020-09-24 23:30:53,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:30:52" (2/3) ... [2020-09-24 23:30:53,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f948c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:30:53, skipping insertion in model container [2020-09-24 23:30:53,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:30:53" (3/3) ... [2020-09-24 23:30:53,753 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product54.cil.c [2020-09-24 23:30:53,765 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:30:53,777 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:30:53,800 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:30:53,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:30:53,835 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:30:53,835 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:30:53,835 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:30:53,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:30:53,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:30:53,836 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:30:53,836 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:30:53,866 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states. [2020-09-24 23:30:53,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 23:30:53,885 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:30:53,887 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 23:30:53,888 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:30:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:30:53,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1442746419, now seen corresponding path program 1 times [2020-09-24 23:30:53,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:30:53,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445342757] [2020-09-24 23:30:53,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:30:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:30:54,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:54,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:56,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:57,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:59,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:30:59,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:30:59,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 23:30:59,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:30:59,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-09-24 23:30:59,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:30:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:30:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 23:30:59,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-24 23:30:59,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 14 [2020-09-24 23:30:59,965 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:30:59,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-09-24 23:31:00,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 23:31:00,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:00,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:00,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:00,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:00,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:00,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:00,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:00,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:00,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:00,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 23:31:00,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:00,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:00,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:00,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:00,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:00,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:00,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:00,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:00,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:31:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:00,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:00,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:00,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:00,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:00,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 23:31:00,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:00,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:00,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:00,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:00,580 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 23:31:00,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445342757] [2020-09-24 23:31:00,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:00,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:31:00,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929835248] [2020-09-24 23:31:00,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:31:00,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:00,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:31:00,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:31:00,615 INFO L87 Difference]: Start difference. First operand 336 states. Second operand 8 states. [2020-09-24 23:31:01,155 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:02,413 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:02,748 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:03,093 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:03,426 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:03,732 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:04,548 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:04,825 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:05,189 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:06,614 INFO L93 Difference]: Finished difference Result 661 states and 822 transitions. [2020-09-24 23:31:06,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 23:31:06,616 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 23:31:06,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:06,639 INFO L225 Difference]: With dead ends: 661 [2020-09-24 23:31:06,640 INFO L226 Difference]: Without dead ends: 436 [2020-09-24 23:31:06,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 23:31:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-09-24 23:31:06,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 393. [2020-09-24 23:31:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 393 states. [2020-09-24 23:31:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 451 transitions. [2020-09-24 23:31:06,780 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 451 transitions. Word has length 142 [2020-09-24 23:31:06,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:06,781 INFO L479 AbstractCegarLoop]: Abstraction has 393 states and 451 transitions. [2020-09-24 23:31:06,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 23:31:06,781 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 451 transitions. [2020-09-24 23:31:06,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-24 23:31:06,787 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:06,787 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:31:06,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:31:06,788 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:06,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:06,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1886653360, now seen corresponding path program 1 times [2020-09-24 23:31:06,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:06,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505344276] [2020-09-24 23:31:06,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:06,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:07,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:07,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:11,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:11,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 259 [2020-09-24 23:31:11,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 23:31:11,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-24 23:31:11,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 23:31:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:31:11,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-24 23:31:11,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:12,147 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:12,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:12,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 23:31:12,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:31:12,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:12,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:12,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:12,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:12,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:12,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:12,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:12,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:12,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:12,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-09-24 23:31:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 23:31:12,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:31:12,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-24 23:31:12,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-24 23:31:12,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 23:31:12,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:12,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 23:31:12,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:12,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:12,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:12,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:12,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:12,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 23:31:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:12,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:12,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 23:31:12,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 23:31:12,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:12,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:31:12,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:12,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:31:12,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 23:31:12,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:12,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:31:12,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:31:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:31:12,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:12,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:12,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:12,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:12,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:12,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:12,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:12,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 23:31:12,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:12,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:12,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:31:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:13,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:13,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:13,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:13,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:13,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:13,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:13,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:13,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:13,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:13,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:13,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:13,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:13,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:13,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:13,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 23:31:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:13,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:13,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:13,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:13,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:13,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:13,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:13,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-24 23:31:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:13,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:13,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:13,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:13,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:13,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:13,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:13,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:13,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:13,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:13,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 23:31:13,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505344276] [2020-09-24 23:31:13,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:13,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-24 23:31:13,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710751608] [2020-09-24 23:31:13,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 23:31:13,103 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:13,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 23:31:13,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-09-24 23:31:13,103 INFO L87 Difference]: Start difference. First operand 393 states and 451 transitions. Second operand 12 states. [2020-09-24 23:31:13,554 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:14,787 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:15,106 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:15,410 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:31:15,712 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:16,033 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:31:16,332 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:18,152 INFO L93 Difference]: Finished difference Result 787 states and 997 transitions. [2020-09-24 23:31:18,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 23:31:18,155 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 210 [2020-09-24 23:31:18,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:18,166 INFO L225 Difference]: With dead ends: 787 [2020-09-24 23:31:18,166 INFO L226 Difference]: Without dead ends: 504 [2020-09-24 23:31:18,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:31:18,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-09-24 23:31:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 401. [2020-09-24 23:31:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-24 23:31:18,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 456 transitions. [2020-09-24 23:31:18,259 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 456 transitions. Word has length 210 [2020-09-24 23:31:18,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:18,260 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 456 transitions. [2020-09-24 23:31:18,260 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 23:31:18,261 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 456 transitions. [2020-09-24 23:31:18,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-24 23:31:18,264 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:18,264 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] [2020-09-24 23:31:18,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:31:18,265 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:18,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:18,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1984430741, now seen corresponding path program 1 times [2020-09-24 23:31:18,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:18,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1322017031] [2020-09-24 23:31:18,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:18,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:18,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 23:31:23,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:23,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4689 [2020-09-24 23:31:23,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 23:31:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 23:31:23,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-24 23:31:23,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:23,388 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:23,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:23,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 255 [2020-09-24 23:31:23,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 23:31:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:23,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:23,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:23,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:23,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:23,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:23,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:23,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:23,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:23,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:23,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 23:31:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:23,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:23,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:23,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:23,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:23,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 23:31:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:23,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:23,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:23,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-24 23:31:23,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:23,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 23:31:23,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:23,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:23,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:23,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:24,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:24,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:24,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-24 23:31:24,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:24,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:31:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:31:24,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:24,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:24,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:24,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:24,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:31:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:24,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:31:24,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:24,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:24,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:24,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-24 23:31:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:24,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:24,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:24,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:24,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:24,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:24,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:24,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:24,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:24,320 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 23:31:24,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1322017031] [2020-09-24 23:31:24,321 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:24,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:31:24,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404141287] [2020-09-24 23:31:24,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:31:24,323 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:24,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:31:24,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:31:24,324 INFO L87 Difference]: Start difference. First operand 401 states and 456 transitions. Second operand 10 states. [2020-09-24 23:31:24,820 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:26,409 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:26,714 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:31:27,020 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:27,327 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:27,614 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:28,201 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:28,500 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:31:28,880 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:31,234 INFO L93 Difference]: Finished difference Result 1235 states and 1616 transitions. [2020-09-24 23:31:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 23:31:31,235 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 199 [2020-09-24 23:31:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:31,248 INFO L225 Difference]: With dead ends: 1235 [2020-09-24 23:31:31,248 INFO L226 Difference]: Without dead ends: 895 [2020-09-24 23:31:31,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 23:31:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2020-09-24 23:31:31,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 645. [2020-09-24 23:31:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-09-24 23:31:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 739 transitions. [2020-09-24 23:31:31,380 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 739 transitions. Word has length 199 [2020-09-24 23:31:31,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:31,381 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 739 transitions. [2020-09-24 23:31:31,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:31:31,382 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 739 transitions. [2020-09-24 23:31:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:31:31,386 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:31,386 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] [2020-09-24 23:31:31,387 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:31:31,387 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:31,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:31,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1404598200, now seen corresponding path program 1 times [2020-09-24 23:31:31,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:31,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [513304055] [2020-09-24 23:31:31,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:31,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:32,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 23:31:32,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:32,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:32,489 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:32,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:32,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 23:31:32,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:32,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:32,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:32,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:32,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:32,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:32,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:32,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:32,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:32,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:32,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:32,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:32,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:32,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:32,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:32,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:31:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:32,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 23:31:32,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:32,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 23:31:32,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:32,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:32,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 23:31:32,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 23:31:32,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:32,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:32,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 23:31:32,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:32,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:31:32,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:32,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:32,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-09-24 23:31:32,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:31:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:31:32,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:31:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:31:32,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:32,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:32,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:32,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:32,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:32,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:32,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:31:32,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:31:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:32,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:32,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:33,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:33,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:33,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:33,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:33,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:33,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:33,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:33,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:33,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:31:33,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:33,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:33,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:31:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:33,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:33,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:33,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:33,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:33,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:33,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 23:31:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:33,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:33,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:33,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:33,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:33,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:33,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:33,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:33,076 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 23:31:33,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [513304055] [2020-09-24 23:31:33,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:33,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 23:31:33,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12098266] [2020-09-24 23:31:33,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 23:31:33,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:33,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 23:31:33,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 23:31:33,079 INFO L87 Difference]: Start difference. First operand 645 states and 739 transitions. Second operand 10 states. [2020-09-24 23:31:34,284 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:31:34,565 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:31:34,858 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:35,154 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:31:35,440 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 23:31:37,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:31:37,514 INFO L93 Difference]: Finished difference Result 1570 states and 2052 transitions. [2020-09-24 23:31:37,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:31:37,515 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 23:31:37,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:31:37,527 INFO L225 Difference]: With dead ends: 1570 [2020-09-24 23:31:37,527 INFO L226 Difference]: Without dead ends: 1035 [2020-09-24 23:31:37,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:31:37,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2020-09-24 23:31:37,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 657. [2020-09-24 23:31:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 657 states. [2020-09-24 23:31:37,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 751 transitions. [2020-09-24 23:31:37,635 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 751 transitions. Word has length 204 [2020-09-24 23:31:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:31:37,636 INFO L479 AbstractCegarLoop]: Abstraction has 657 states and 751 transitions. [2020-09-24 23:31:37,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 23:31:37,636 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 751 transitions. [2020-09-24 23:31:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 23:31:37,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:31:37,640 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] [2020-09-24 23:31:37,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:31:37,640 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:31:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:31:37,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1474116309, now seen corresponding path program 1 times [2020-09-24 23:31:37,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:31:37,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793534175] [2020-09-24 23:31:37,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:31:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:38,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:38,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 23:31:38,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:38,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1188 [2020-09-24 23:31:38,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:31:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:31:38,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 23:31:38,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,195 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 23:31:39,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:31:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 23:31:39,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 202 [2020-09-24 23:31:39,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:31:39,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 23:31:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 23:31:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 23:31:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:31:39,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 23:31:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:31:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:31:39,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:31:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:31:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:31:39,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:31:39,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 23:31:39,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 23:31:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:39,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:39,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:39,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 23:31:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 23:31:39,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 23:31:39,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 23:31:39,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 23:31:39,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:31:39,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-24 23:31:39,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 23:31:39,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:31:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:31:39,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:31:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:31:39,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:31:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:31:39,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:31:39,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:31:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:31:39,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:31:39,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 23:31:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:39,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 23:31:39,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:31:39,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:31:39,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:31:39,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:31:39,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:31:39,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:31:39,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:31:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:31:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:31:39,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:31:39,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:31:39,780 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 23:31:39,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793534175] [2020-09-24 23:31:39,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:31:39,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 23:31:39,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379042062] [2020-09-24 23:31:39,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 23:31:39,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:31:39,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 23:31:39,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 23:31:39,785 INFO L87 Difference]: Start difference. First operand 657 states and 751 transitions. Second operand 8 states. [2020-09-24 23:31:40,311 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 23:31:41,385 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186