/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:58:12,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:58:12,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:58:12,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:58:12,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:58:12,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:58:12,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:58:12,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:58:12,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:58:12,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:58:12,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:58:12,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:58:12,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:58:12,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:58:12,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:58:12,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:58:12,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:58:12,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:58:12,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:58:12,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:58:12,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:58:12,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:58:12,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:58:12,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:58:12,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:58:12,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:58:12,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:58:12,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:58:12,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:58:12,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:58:12,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:58:12,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:58:12,681 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:58:12,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:58:12,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:58:12,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:58:12,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:58:12,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:58:12,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:58:12,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:58:12,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:58:12,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:58:12,738 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:58:12,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:58:12,741 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:58:12,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:58:12,741 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:58:12,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:58:12,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:58:12,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:58:12,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:58:12,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:58:12,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:58:12,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:58:12,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:58:12,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:58:12,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:58:12,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:58:12,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:58:12,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:58:12,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:58:12,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:58:12,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:58:12,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:12,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:58:12,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:58:12,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:58:12,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:58:12,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:58:12,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:58:12,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:58:12,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:58:13,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:58:13,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:58:13,266 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:58:13,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:58:13,269 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:58:13,270 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-25 01:58:13,350 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8407d5d80/82c732b1b9a44d37b424cd392e0a993b/FLAGa1cbc2b52 [2020-09-25 01:58:13,979 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:58:13,980 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2020-09-25 01:58:14,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8407d5d80/82c732b1b9a44d37b424cd392e0a993b/FLAGa1cbc2b52 [2020-09-25 01:58:14,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8407d5d80/82c732b1b9a44d37b424cd392e0a993b [2020-09-25 01:58:14,236 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:58:14,242 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:58:14,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:14,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:58:14,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:58:14,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:14" (1/1) ... [2020-09-25 01:58:14,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:14, skipping insertion in model container [2020-09-25 01:58:14,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:58:14" (1/1) ... [2020-09-25 01:58:14,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:58:14,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:58:14,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:14,921 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:58:15,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:58:15,116 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:58:15,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15 WrapperNode [2020-09-25 01:58:15,117 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:58:15,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:58:15,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:58:15,118 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:58:15,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... [2020-09-25 01:58:15,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:58:15,214 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:58:15,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:58:15,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:58:15,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:58:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:58:15,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:58:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:15,320 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:58:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:58:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:58:15,321 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:58:15,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:58:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:58:15,323 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:58:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:58:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:15,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:15,327 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:58:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:58:15,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:58:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:58:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:58:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:58:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:58:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:58:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:58:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:58:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:58:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:58:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:58:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:15,331 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:58:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:58:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:58:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:58:15,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:58:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:58:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:58:15,333 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:58:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:58:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:58:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:58:15,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:58:15,336 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:58:15,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:58:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:58:15,338 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:58:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:58:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:58:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:58:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:58:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:58:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:58:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:58:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:58:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:58:15,341 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:58:15,342 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:58:15,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:58:15,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:58:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:58:15,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:58:15,346 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:58:15,347 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:58:15,348 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:58:15,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:58:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:58:15,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:58:16,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:58:16,562 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:58:16,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:16 BoogieIcfgContainer [2020-09-25 01:58:16,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:58:16,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:58:16,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:58:16,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:58:16,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:58:14" (1/3) ... [2020-09-25 01:58:16,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b2534b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:16, skipping insertion in model container [2020-09-25 01:58:16,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:58:15" (2/3) ... [2020-09-25 01:58:16,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b2534b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:58:16, skipping insertion in model container [2020-09-25 01:58:16,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:58:16" (3/3) ... [2020-09-25 01:58:16,578 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2020-09-25 01:58:16,590 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:58:16,600 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:58:16,623 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:58:16,654 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:58:16,654 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:58:16,654 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:58:16,655 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:58:16,655 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:58:16,655 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:58:16,655 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:58:16,655 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:58:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states. [2020-09-25 01:58:16,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 01:58:16,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:16,705 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 01:58:16,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:16,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:16,713 INFO L82 PathProgramCache]: Analyzing trace with hash 797820518, now seen corresponding path program 1 times [2020-09-25 01:58:16,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:16,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [807140451] [2020-09-25 01:58:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:17,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:17,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:17,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:19,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:21,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 01:58:22,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:22,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 01:58:22,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:58:22,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:58:22,566 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:22,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:22,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 01:58:22,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:22,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:22,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:22,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:22,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:58:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:22,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:22,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:22,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:22,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 01:58:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:58:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:22,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:22,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:22,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:22,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:22,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:22,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:22,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:22,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:22,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:22,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:22,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [807140451] [2020-09-25 01:58:23,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:23,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:58:23,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101615305] [2020-09-25 01:58:23,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:58:23,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:23,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:58:23,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:58:23,034 INFO L87 Difference]: Start difference. First operand 351 states. Second operand 4 states. [2020-09-25 01:58:24,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:24,605 INFO L93 Difference]: Finished difference Result 563 states and 653 transitions. [2020-09-25 01:58:24,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:58:24,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 01:58:24,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:24,633 INFO L225 Difference]: With dead ends: 563 [2020-09-25 01:58:24,633 INFO L226 Difference]: Without dead ends: 348 [2020-09-25 01:58:24,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:58:24,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-25 01:58:24,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 300. [2020-09-25 01:58:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-09-25 01:58:24,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 325 transitions. [2020-09-25 01:58:24,832 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 325 transitions. Word has length 160 [2020-09-25 01:58:24,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:24,835 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 325 transitions. [2020-09-25 01:58:24,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:58:24,835 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 325 transitions. [2020-09-25 01:58:24,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:58:24,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:24,848 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] [2020-09-25 01:58:24,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:58:24,849 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:24,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:24,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1390258068, now seen corresponding path program 1 times [2020-09-25 01:58:24,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:24,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992237253] [2020-09-25 01:58:24,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:24,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:25,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:26,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:27,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:28,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:29,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:29,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 01:58:29,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:29,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5052 [2020-09-25 01:58:29,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:29,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:29,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:58:29,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:29,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,331 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:30,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:30,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:30,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:58:30,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:30,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:30,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:58:30,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:30,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:30,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:58:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:30,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:30,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:58:30,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:30,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 01:58:30,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:30,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:30,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:30,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:30,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:30,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:30,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:30,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:30,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:30,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:30,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:30,577 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992237253] [2020-09-25 01:58:30,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:30,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:58:30,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586519154] [2020-09-25 01:58:30,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:58:30,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:30,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:58:30,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:58:30,582 INFO L87 Difference]: Start difference. First operand 300 states and 325 transitions. Second operand 5 states. [2020-09-25 01:58:31,229 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:58:32,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:32,420 INFO L93 Difference]: Finished difference Result 488 states and 545 transitions. [2020-09-25 01:58:32,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:58:32,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 01:58:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:32,427 INFO L225 Difference]: With dead ends: 488 [2020-09-25 01:58:32,427 INFO L226 Difference]: Without dead ends: 337 [2020-09-25 01:58:32,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:58:32,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-25 01:58:32,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 290. [2020-09-25 01:58:32,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 01:58:32,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 312 transitions. [2020-09-25 01:58:32,523 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 312 transitions. Word has length 161 [2020-09-25 01:58:32,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:32,526 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 312 transitions. [2020-09-25 01:58:32,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:58:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 312 transitions. [2020-09-25 01:58:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 01:58:32,529 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:32,529 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] [2020-09-25 01:58:32,529 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:58:32,529 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:32,530 INFO L82 PathProgramCache]: Analyzing trace with hash -678353695, now seen corresponding path program 1 times [2020-09-25 01:58:32,530 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:32,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778489917] [2020-09-25 01:58:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:32,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:32,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:33,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:34,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:37,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:37,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 01:58:37,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:58:37,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-09-25 01:58:37,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:58:37,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 01:58:37,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:37,916 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:37,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:38,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 01:58:38,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,074 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:58:38,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:38,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:38,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:38,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:58:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:38,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:38,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:38,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:58:38,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:58:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:38,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:38,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 01:58:38,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:38,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 01:58:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:38,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 01:58:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:38,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:38,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:38,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:38,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:38,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:38,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:38,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:38,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:38,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:38,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778489917] [2020-09-25 01:58:38,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:38,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 01:58:38,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716400203] [2020-09-25 01:58:38,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 01:58:38,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:38,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 01:58:38,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 01:58:38,196 INFO L87 Difference]: Start difference. First operand 290 states and 312 transitions. Second operand 6 states. [2020-09-25 01:58:38,726 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:39,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:39,884 INFO L93 Difference]: Finished difference Result 535 states and 610 transitions. [2020-09-25 01:58:39,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 01:58:39,886 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 01:58:39,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:39,890 INFO L225 Difference]: With dead ends: 535 [2020-09-25 01:58:39,890 INFO L226 Difference]: Without dead ends: 360 [2020-09-25 01:58:39,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:58:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-09-25 01:58:39,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 290. [2020-09-25 01:58:39,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 01:58:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 311 transitions. [2020-09-25 01:58:39,934 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 311 transitions. Word has length 174 [2020-09-25 01:58:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:39,934 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 311 transitions. [2020-09-25 01:58:39,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 01:58:39,935 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 311 transitions. [2020-09-25 01:58:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-25 01:58:39,937 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:39,938 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] [2020-09-25 01:58:39,938 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:58:39,938 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:39,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:39,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1021606715, now seen corresponding path program 1 times [2020-09-25 01:58:39,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:39,939 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399204987] [2020-09-25 01:58:39,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:40,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:40,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:40,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:41,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:42,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:44,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:44,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 230 [2020-09-25 01:58:45,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 01:58:45,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 01:58:45,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 181 [2020-09-25 01:58:45,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:58:45,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:58:45,375 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:45,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:45,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 01:58:45,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:45,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:58:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:45,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:45,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:58:45,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:45,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:45,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:58:45,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 01:58:45,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:45,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:58:45,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:58:45,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:45,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:58:45,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:58:45,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:45,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:58:45,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:58:45,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:45,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:45,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:45,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:45,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:45,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-25 01:58:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:45,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:45,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2020-09-25 01:58:45,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:45,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:45,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:45,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:45,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:45,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:45,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:45,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:58:45,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:45,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:45,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:58:45,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399204987] [2020-09-25 01:58:45,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:45,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:58:45,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812892364] [2020-09-25 01:58:45,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:58:45,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:45,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:58:45,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:58:45,866 INFO L87 Difference]: Start difference. First operand 290 states and 311 transitions. Second operand 9 states. [2020-09-25 01:58:46,648 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:48,943 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:49,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:58:49,980 INFO L93 Difference]: Finished difference Result 724 states and 855 transitions. [2020-09-25 01:58:49,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 01:58:49,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 187 [2020-09-25 01:58:49,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:58:49,985 INFO L225 Difference]: With dead ends: 724 [2020-09-25 01:58:49,986 INFO L226 Difference]: Without dead ends: 549 [2020-09-25 01:58:49,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=157, Invalid=395, Unknown=0, NotChecked=0, Total=552 [2020-09-25 01:58:49,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2020-09-25 01:58:50,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 411. [2020-09-25 01:58:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-09-25 01:58:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 444 transitions. [2020-09-25 01:58:50,044 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 444 transitions. Word has length 187 [2020-09-25 01:58:50,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:58:50,045 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 444 transitions. [2020-09-25 01:58:50,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:58:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 444 transitions. [2020-09-25 01:58:50,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-25 01:58:50,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:58:50,048 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] [2020-09-25 01:58:50,048 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:58:50,048 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:58:50,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:58:50,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1622480709, now seen corresponding path program 1 times [2020-09-25 01:58:50,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:58:50,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934854258] [2020-09-25 01:58:50,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:58:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:50,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:50,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:50,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:51,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:54,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 01:58:55,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 01:58:55,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,455 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:58:55,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:58:55,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 01:58:55,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:58:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:55,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:58:55,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:58:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:55,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:55,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:58:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:55,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:55,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:58:55,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:55,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:55,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:58:55,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:58:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:55,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:58:55,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 01:58:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:58:55,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:55,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:58:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 01:58:55,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:55,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:58:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:55,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:55,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 01:58:55,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:58:55,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:58:55,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 01:58:55,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:58:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:58:55,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:58:55,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:58:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-25 01:58:55,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:58:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:58:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:58:55,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 01:58:55,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 01:58:55,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:58:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:58:55,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:55,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:58:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:58:55,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:58:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:58:55,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:58:55,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:58:55,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-25 01:58:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:55,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:58:55,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:58:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:55,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:55,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2020-09-25 01:58:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:58:55,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:58:55,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:58:55,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:58:55,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:58:55,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:58:55,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:58:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:58:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:58:55,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:58:55,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:58:56,011 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 01:58:56,012 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934854258] [2020-09-25 01:58:56,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:58:56,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:58:56,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226557850] [2020-09-25 01:58:56,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:58:56,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:58:56,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:58:56,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:58:56,014 INFO L87 Difference]: Start difference. First operand 411 states and 444 transitions. Second operand 11 states. [2020-09-25 01:58:56,638 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:57,638 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:58:57,954 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:58:59,323 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:58:59,660 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:59:00,024 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190