/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=WIDEST --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_spec5_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:06:01,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:06:01,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:06:01,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:06:01,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:06:01,071 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:06:01,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:06:01,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:06:01,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:06:01,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:06:01,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:06:01,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:06:01,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:06:01,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:06:01,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:06:01,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:06:01,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:06:01,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:06:01,098 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:06:01,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:06:01,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:06:01,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:06:01,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:06:01,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:06:01,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:06:01,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:06:01,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:06:01,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:06:01,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:06:01,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:06:01,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:06:01,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:06:01,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:06:01,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:06:01,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:06:01,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:06:01,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:06:01,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:06:01,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:06:01,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:06:01,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:06:01,133 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 [2020-09-25 03:06:01,181 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:06:01,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:06:01,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:06:01,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:06:01,184 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:06:01,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:06:01,185 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:06:01,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:06:01,186 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:06:01,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:06:01,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:06:01,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:06:01,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:06:01,188 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:06:01,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:06:01,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:06:01,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:06:01,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:06:01,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:06:01,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:06:01,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:06:01,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:06:01,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:06:01,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:06:01,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:06:01,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:06:01,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:06:01,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:06:01,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:06:01,191 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:06:01,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:06:01,654 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:06:01,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:06:01,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:06:01,661 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:06:01,663 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-25 03:06:01,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0339c298/a432d29aa56645abb8c0aba85b2cc7a8/FLAG7892e6c3b [2020-09-25 03:06:02,381 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:06:02,381 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product60.cil.c [2020-09-25 03:06:02,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0339c298/a432d29aa56645abb8c0aba85b2cc7a8/FLAG7892e6c3b [2020-09-25 03:06:02,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0339c298/a432d29aa56645abb8c0aba85b2cc7a8 [2020-09-25 03:06:02,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:06:02,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:06:02,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:06:02,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:06:02,674 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:06:02,675 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:06:02" (1/1) ... [2020-09-25 03:06:02,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:02, skipping insertion in model container [2020-09-25 03:06:02,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:06:02" (1/1) ... [2020-09-25 03:06:02,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:06:02,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:06:03,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:06:03,269 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:06:03,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:06:03,399 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:06:03,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03 WrapperNode [2020-09-25 03:06:03,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:06:03,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:06:03,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:06:03,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:06:03,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... [2020-09-25 03:06:03,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:06:03,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:06:03,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:06:03,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:06:03,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:06:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:06:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:06:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:06:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:06:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:06:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:06:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:06:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:06:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:06:03,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 03:06:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 03:06:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 03:06:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:06:03,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:06:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:06:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:06:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:06:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:06:03,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:06:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:06:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:06:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:06:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:06:03,592 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:06:03,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:06:03,594 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:06:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:06:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:06:03,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 03:06:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:06:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:06:03,595 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 03:06:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 03:06:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 03:06:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:06:03,599 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:06:03,600 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:06:03,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:06:03,602 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:06:03,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:06:03,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:06:04,840 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:06:04,840 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:06:04,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:06:04 BoogieIcfgContainer [2020-09-25 03:06:04,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:06:04,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:06:04,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:06:04,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:06:04,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:06:02" (1/3) ... [2020-09-25 03:06:04,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756c84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:06:04, skipping insertion in model container [2020-09-25 03:06:04,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:06:03" (2/3) ... [2020-09-25 03:06:04,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756c84b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:06:04, skipping insertion in model container [2020-09-25 03:06:04,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:06:04" (3/3) ... [2020-09-25 03:06:04,859 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2020-09-25 03:06:04,871 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:06:04,884 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:06:04,909 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:06:04,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:06:04,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:06:04,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:06:04,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:06:04,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:06:04,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:06:04,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:06:04,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:06:04,984 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states. [2020-09-25 03:06:05,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 03:06:05,004 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:06:05,006 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-25 03:06:05,007 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:06:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:06:05,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1647532489, now seen corresponding path program 1 times [2020-09-25 03:06:05,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:06:05,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1445107588] [2020-09-25 03:06:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:06:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:05,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:07,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:07,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:10,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:10,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:10,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 03:06:10,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:06:10,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 03:06:10,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:06:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 03:06:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 115 [2020-09-25 03:06:10,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:06:11,047 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:06:11,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:06:11,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-09-25 03:06:11,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 03:06:11,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:11,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:06:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:11,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:06:11,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:11,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:11,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:06:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:11,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:11,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:11,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:11,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:06:11,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:11,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 03:06:11,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:11,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:11,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:06:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:11,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:11,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:11,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:06:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:11,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:06:11,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:06:11,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:11,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:06:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:11,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 03:06:11,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:06:11,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:11,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:11,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:06:11,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:11,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:11,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:11,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:06:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:11,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:11,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:11,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:11,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:06:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:11,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:11,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:11,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:11,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:11,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 03:06:11,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:11,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:11,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:11,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 03:06:11,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:06:11,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1445107588] [2020-09-25 03:06:11,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:06:11,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:06:11,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625545621] [2020-09-25 03:06:11,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:06:11,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:06:11,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:06:11,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:06:11,924 INFO L87 Difference]: Start difference. First operand 357 states. Second operand 9 states. [2020-09-25 03:06:12,702 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:13,501 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:13,817 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 03:06:15,549 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:15,882 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:16,210 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:16,673 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:16,981 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:17,278 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:18,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:06:18,203 INFO L93 Difference]: Finished difference Result 691 states and 832 transitions. [2020-09-25 03:06:18,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:06:18,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 03:06:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:06:18,227 INFO L225 Difference]: With dead ends: 691 [2020-09-25 03:06:18,227 INFO L226 Difference]: Without dead ends: 458 [2020-09-25 03:06:18,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:06:18,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-09-25 03:06:18,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 407. [2020-09-25 03:06:18,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2020-09-25 03:06:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 455 transitions. [2020-09-25 03:06:18,417 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 455 transitions. Word has length 160 [2020-09-25 03:06:18,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:06:18,418 INFO L479 AbstractCegarLoop]: Abstraction has 407 states and 455 transitions. [2020-09-25 03:06:18,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:06:18,418 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 455 transitions. [2020-09-25 03:06:18,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-09-25 03:06:18,424 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:06:18,424 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:06:18,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:06:18,425 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:06:18,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:06:18,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1125216324, now seen corresponding path program 1 times [2020-09-25 03:06:18,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:06:18,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325833699] [2020-09-25 03:06:18,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:06:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:18,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:18,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:18,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:19,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:23,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:23,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 320 [2020-09-25 03:06:23,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 03:06:23,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 03:06:23,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:06:23,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 03:06:23,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-09-25 03:06:23,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:23,853 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:06:23,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:23,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:06:24,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 03:06:24,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 03:06:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:06:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:24,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:24,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:24,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:24,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:06:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:24,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:24,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:24,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:06:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:24,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:06:24,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:06:24,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:06:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:06:24,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:24,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:06:24,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:06:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:24,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:06:24,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:06:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:06:24,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:06:24,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 03:06:24,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:06:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:06:24,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 03:06:24,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:24,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:24,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:06:24,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:06:24,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:06:24,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:24,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:24,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:24,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:24,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:06:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:06:24,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 03:06:24,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:06:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:06:24,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:24,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:06:24,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:06:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:06:24,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:24,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 03:06:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:06:24,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:24,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:06:24,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:24,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:06:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:24,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:24,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:06:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 03:06:24,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:06:24,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 03:06:24,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:06:24,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 03:06:24,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:06:24,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 03:06:24,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 03:06:24,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:06:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:06:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:06:24,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:24,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:06:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:24,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:24,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:24,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:06:24,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:24,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 03:06:24,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:24,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:06:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:24,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:06:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:06:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:06:25,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:06:25,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:25,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:06:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 03:06:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:06:25,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 03:06:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:06:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 03:06:25,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:25,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:25,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 03:06:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:25,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:06:25,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:25,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:06:25,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 03:06:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:06:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:06:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-25 03:06:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:25,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:25,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:25,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-25 03:06:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:25,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:25,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:06:25,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:06:25,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:06:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:06:25,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:06:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:06:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:06:25,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:06:25,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:06:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 03:06:25,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325833699] [2020-09-25 03:06:25,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:06:25,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 03:06:25,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361718684] [2020-09-25 03:06:25,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 03:06:25,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:06:25,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 03:06:25,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2020-09-25 03:06:25,158 INFO L87 Difference]: Start difference. First operand 407 states and 455 transitions. Second operand 20 states. [2020-09-25 03:06:25,706 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:27,578 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:27,914 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:28,323 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:28,758 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:29,096 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:29,671 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:30,041 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:06:30,360 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:30,732 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 03:06:31,084 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:31,464 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:31,810 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:32,172 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:32,505 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:32,828 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:33,154 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:06:33,547 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:34,158 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:06:34,482 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:35,438 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-25 03:06:35,841 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:06:36,208 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:36,578 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:06:37,036 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:37,514 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:37,878 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:06:39,664 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:06:40,307 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 03:06:41,042 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:06:41,716 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 03:06:42,675 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 03:06:43,349 WARN L193 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-25 03:06:44,056 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 199 [2020-09-25 03:06:44,762 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-25 03:06:45,432 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-25 03:06:46,074 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-25 03:06:49,475 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:49,812 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:50,160 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:06:50,481 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:50,921 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:06:51,301 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 03:06:51,692 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 03:06:52,036 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:52,376 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 03:06:52,700 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:06:55,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:06:55,920 INFO L93 Difference]: Finished difference Result 1838 states and 2572 transitions. [2020-09-25 03:06:55,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2020-09-25 03:06:55,921 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 257 [2020-09-25 03:06:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:06:55,952 INFO L225 Difference]: With dead ends: 1838 [2020-09-25 03:06:55,952 INFO L226 Difference]: Without dead ends: 1546 [2020-09-25 03:06:55,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2356 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=1235, Invalid=6597, Unknown=0, NotChecked=0, Total=7832 [2020-09-25 03:06:55,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2020-09-25 03:06:56,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1181. [2020-09-25 03:06:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1181 states. [2020-09-25 03:06:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1419 transitions. [2020-09-25 03:06:56,205 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1419 transitions. Word has length 257 [2020-09-25 03:06:56,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:06:56,206 INFO L479 AbstractCegarLoop]: Abstraction has 1181 states and 1419 transitions. [2020-09-25 03:06:56,206 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 03:06:56,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1419 transitions. [2020-09-25 03:06:56,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-25 03:06:56,217 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:06:56,217 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:06:56,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:06:56,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:06:56,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:06:56,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1283456023, now seen corresponding path program 1 times [2020-09-25 03:06:56,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:06:56,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901360365] [2020-09-25 03:06:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:06:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:06:56,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:06:56,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking...