/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:15:12,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:15:12,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:15:12,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:15:12,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:15:12,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:15:12,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:15:12,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:15:12,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:15:12,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:15:12,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:15:12,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:15:12,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:15:12,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:15:12,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:15:12,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:15:12,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:15:12,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:15:12,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:15:12,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:15:12,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:15:12,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:15:12,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:15:12,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:15:12,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:15:12,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:15:12,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:15:12,777 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:15:12,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:15:12,781 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:15:12,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:15:12,782 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:15:12,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:15:12,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:15:12,785 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:15:12,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:15:12,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:15:12,786 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:15:12,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:15:12,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:15:12,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:15:12,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 19:15:12,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:15:12,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:15:12,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:15:12,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:15:12,836 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:15:12,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:15:12,837 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:15:12,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:15:12,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:15:12,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:15:12,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:15:12,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:15:12,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:15:12,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:15:12,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:15:12,840 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:15:12,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:15:12,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:15:12,841 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:15:12,841 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:15:12,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:15:12,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:15:12,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:15:12,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:15:12,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:15:12,842 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:15:12,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:15:12,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:15:12,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:15:12,843 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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:15:13,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:15:13,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:15:13,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:15:13,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:15:13,304 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:15:13,306 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-09-24 19:15:13,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6d09b726/96d6d46de63f4f79953b5186831547ae/FLAGa754e55a7 [2020-09-24 19:15:14,054 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:15:14,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product47.cil.c [2020-09-24 19:15:14,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6d09b726/96d6d46de63f4f79953b5186831547ae/FLAGa754e55a7 [2020-09-24 19:15:14,288 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e6d09b726/96d6d46de63f4f79953b5186831547ae [2020-09-24 19:15:14,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:15:14,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:15:14,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:14,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:15:14,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:15:14,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:14" (1/1) ... [2020-09-24 19:15:14,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701ef800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:14, skipping insertion in model container [2020-09-24 19:15:14,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:15:14" (1/1) ... [2020-09-24 19:15:14,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:15:14,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:15:14,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:14,952 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:15:15,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:15:15,079 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:15:15,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15 WrapperNode [2020-09-24 19:15:15,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:15:15,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:15:15,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:15:15,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:15:15,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (1/1) ... [2020-09-24 19:15:15,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:15:15,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:15:15,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:15:15,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:15:15,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (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 [2020-09-24 19:15:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:15:15,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:15:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:15:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:15:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:15:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:15:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:15:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:15:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:15:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:15:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:15:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:15:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:15:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:15:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 19:15:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:15:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:15:15,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:15:15,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:15:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:15:15,293 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:15:15,294 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 19:15:15,295 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:15:15,296 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:15:15,297 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:15:15,298 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:15:15,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:15:15,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:15:15,301 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:15:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:15:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:15:15,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:15:16,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:15:16,507 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:15:16,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:16 BoogieIcfgContainer [2020-09-24 19:15:16,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:15:16,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:15:16,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:15:16,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:15:16,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:15:14" (1/3) ... [2020-09-24 19:15:16,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0103b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:16, skipping insertion in model container [2020-09-24 19:15:16,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:15:15" (2/3) ... [2020-09-24 19:15:16,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c0103b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:15:16, skipping insertion in model container [2020-09-24 19:15:16,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:15:16" (3/3) ... [2020-09-24 19:15:16,525 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product47.cil.c [2020-09-24 19:15:16,537 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:15:16,549 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:15:16,570 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:15:16,607 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:15:16,607 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:15:16,607 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:15:16,607 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:15:16,607 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:15:16,607 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:15:16,608 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:15:16,608 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:15:16,637 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states. [2020-09-24 19:15:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 19:15:16,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:16,661 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] [2020-09-24 19:15:16,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:16,668 INFO L82 PathProgramCache]: Analyzing trace with hash 41211657, now seen corresponding path program 1 times [2020-09-24 19:15:16,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:16,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015449996] [2020-09-24 19:15:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:17,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:17,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 19:15:18,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:18,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1069 [2020-09-24 19:15:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-24 19:15:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:15:18,516 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:18,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:18,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-09-24 19:15:18,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:18,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:18,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:18,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:18,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:18,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:18,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:18,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:18,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:18,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:18,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 19:15:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:18,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:18,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:18,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:18,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:18,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:18,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 19:15:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:18,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:18,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:18,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:18,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:18,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:18,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:18,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:18,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:18,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:18,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:18,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:18,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:18,908 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:18,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015449996] [2020-09-24 19:15:18,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:18,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:15:18,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182414781] [2020-09-24 19:15:18,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:15:18,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:18,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:15:18,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:18,942 INFO L87 Difference]: Start difference. First operand 334 states. Second operand 4 states. [2020-09-24 19:15:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:20,361 INFO L93 Difference]: Finished difference Result 530 states and 624 transitions. [2020-09-24 19:15:20,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-24 19:15:20,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-24 19:15:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:20,387 INFO L225 Difference]: With dead ends: 530 [2020-09-24 19:15:20,387 INFO L226 Difference]: Without dead ends: 332 [2020-09-24 19:15:20,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:15:20,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-09-24 19:15:20,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 283. [2020-09-24 19:15:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-24 19:15:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 310 transitions. [2020-09-24 19:15:20,523 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 310 transitions. Word has length 160 [2020-09-24 19:15:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:20,525 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 310 transitions. [2020-09-24 19:15:20,525 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:15:20,525 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 310 transitions. [2020-09-24 19:15:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 19:15:20,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:20,531 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] [2020-09-24 19:15:20,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:15:20,532 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:20,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:20,533 INFO L82 PathProgramCache]: Analyzing trace with hash -902563244, now seen corresponding path program 1 times [2020-09-24 19:15:20,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:20,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770841028] [2020-09-24 19:15:20,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:20,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:20,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:20,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:21,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-24 19:15:21,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1019 [2020-09-24 19:15:21,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 19:15:21,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:21,987 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:21,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:22,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-24 19:15:22,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:22,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:22,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:22,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:22,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:22,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:22,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:22,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:22,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:22,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:22,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:22,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 19:15:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:22,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:22,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:22,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:22,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:22,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:22,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-24 19:15:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:22,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:22,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:22,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 19:15:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:22,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:22,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:22,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:22,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:22,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:22,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:22,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:22,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:22,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770841028] [2020-09-24 19:15:22,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:22,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:22,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806116365] [2020-09-24 19:15:22,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:22,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:22,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:22,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:22,306 INFO L87 Difference]: Start difference. First operand 283 states and 310 transitions. Second operand 5 states. [2020-09-24 19:15:23,026 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:24,096 INFO L93 Difference]: Finished difference Result 453 states and 512 transitions. [2020-09-24 19:15:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:24,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-24 19:15:24,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:24,105 INFO L225 Difference]: With dead ends: 453 [2020-09-24 19:15:24,105 INFO L226 Difference]: Without dead ends: 321 [2020-09-24 19:15:24,107 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 [2020-09-24 19:15:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-09-24 19:15:24,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 273. [2020-09-24 19:15:24,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-24 19:15:24,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2020-09-24 19:15:24,170 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 161 [2020-09-24 19:15:24,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:24,171 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2020-09-24 19:15:24,171 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:24,171 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2020-09-24 19:15:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-24 19:15:24,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:24,175 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] [2020-09-24 19:15:24,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:15:24,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:24,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1967698974, now seen corresponding path program 1 times [2020-09-24 19:15:24,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:24,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972571402] [2020-09-24 19:15:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:24,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:25,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:25,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:25,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-24 19:15:25,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:25,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-09-24 19:15:25,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 19:15:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 19:15:25,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-24 19:15:25,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:25,684 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:25,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:25,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:26,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-24 19:15:26,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 19:15:26,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:26,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:26,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:26,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:26,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:26,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:26,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:15:26,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:26,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:26,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:26,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:26,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:26,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:26,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:26,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:26,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:26,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:26,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:26,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:26,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:26,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:26,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:26,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:26,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 19:15:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:26,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:26,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:26,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:26,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 19:15:26,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:26,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:26,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:26,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:26,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:26,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:26,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:26,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:26,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:26,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:26,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:26,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972571402] [2020-09-24 19:15:26,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:26,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:15:26,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358682020] [2020-09-24 19:15:26,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:15:26,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:26,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:15:26,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:15:26,332 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand 5 states. [2020-09-24 19:15:27,124 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:29,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:29,107 INFO L93 Difference]: Finished difference Result 647 states and 741 transitions. [2020-09-24 19:15:29,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:15:29,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-09-24 19:15:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:29,117 INFO L225 Difference]: With dead ends: 647 [2020-09-24 19:15:29,117 INFO L226 Difference]: Without dead ends: 489 [2020-09-24 19:15:29,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:29,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-09-24 19:15:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 425. [2020-09-24 19:15:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-09-24 19:15:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 474 transitions. [2020-09-24 19:15:29,196 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 474 transitions. Word has length 170 [2020-09-24 19:15:29,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:29,197 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 474 transitions. [2020-09-24 19:15:29,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:15:29,197 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 474 transitions. [2020-09-24 19:15:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-24 19:15:29,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:29,202 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] [2020-09-24 19:15:29,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:15:29,202 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:29,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1112258490, now seen corresponding path program 1 times [2020-09-24 19:15:29,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:29,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668718331] [2020-09-24 19:15:29,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:29,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:29,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:29,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-09-24 19:15:30,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:15:30,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1087 [2020-09-24 19:15:30,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-09-24 19:15:30,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 19:15:30,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,757 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:30,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:30,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:15:30,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:30,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:30,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:30,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:30,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:30,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:30,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 19:15:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:15:30,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:15:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:30,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:30,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:30,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:30,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:30,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:30,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:30,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:30,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 19:15:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:31,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:31,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:31,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:31,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:31,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:31,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:31,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:31,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:31,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:31,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-09-24 19:15:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:31,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:31,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:31,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:31,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:31,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:15:31,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:31,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:31,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:31,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 19:15:31,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668718331] [2020-09-24 19:15:31,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:31,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:15:31,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219576482] [2020-09-24 19:15:31,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:15:31,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:31,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:15:31,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:15:31,090 INFO L87 Difference]: Start difference. First operand 425 states and 474 transitions. Second operand 10 states. [2020-09-24 19:15:31,693 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:32,640 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:32,938 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:34,353 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:34,690 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:35,052 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:35,662 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:36,012 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 19:15:36,354 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:15:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:36,980 INFO L93 Difference]: Finished difference Result 1028 states and 1221 transitions. [2020-09-24 19:15:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 19:15:36,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-24 19:15:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:36,987 INFO L225 Difference]: With dead ends: 1028 [2020-09-24 19:15:36,987 INFO L226 Difference]: Without dead ends: 718 [2020-09-24 19:15:36,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 19:15:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2020-09-24 19:15:37,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 635. [2020-09-24 19:15:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 635 states. [2020-09-24 19:15:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 712 transitions. [2020-09-24 19:15:37,077 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 712 transitions. Word has length 179 [2020-09-24 19:15:37,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:37,078 INFO L479 AbstractCegarLoop]: Abstraction has 635 states and 712 transitions. [2020-09-24 19:15:37,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:15:37,078 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 712 transitions. [2020-09-24 19:15:37,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:15:37,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:37,083 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:37,083 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:15:37,083 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:37,084 INFO L82 PathProgramCache]: Analyzing trace with hash 212621173, now seen corresponding path program 1 times [2020-09-24 19:15:37,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:37,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903820121] [2020-09-24 19:15:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:37,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:15:38,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 945 [2020-09-24 19:15:38,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 200 [2020-09-24 19:15:38,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:38,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,374 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:38,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-24 19:15:38,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:38,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:38,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:38,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:38,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:38,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:38,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:38,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:38,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:38,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:38,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:38,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:15:38,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:38,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:38,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:38,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:38,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-24 19:15:38,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 19:15:38,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:38,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:38,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:38,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-24 19:15:38,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:15:38,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:15:38,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:38,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:38,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:38,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:38,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 19:15:38,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:38,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:15:38,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:38,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:39,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 19:15:39,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:39,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:39,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:15:39,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:15:39,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:39,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:39,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:39,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:39,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:39,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:39,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:39,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:39,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:39,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:15:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:39,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:39,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:15:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:39,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:39,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:39,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:39,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:39,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:39,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:39,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:39,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:39,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903820121] [2020-09-24 19:15:39,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:39,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:15:39,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382881814] [2020-09-24 19:15:39,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:15:39,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:39,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:15:39,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:15:39,264 INFO L87 Difference]: Start difference. First operand 635 states and 712 transitions. Second operand 10 states. [2020-09-24 19:15:40,931 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:41,248 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:41,570 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:41,911 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:42,262 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:42,582 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:43,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:43,548 INFO L93 Difference]: Finished difference Result 1271 states and 1502 transitions. [2020-09-24 19:15:43,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 19:15:43,550 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 230 [2020-09-24 19:15:43,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:43,555 INFO L225 Difference]: With dead ends: 1271 [2020-09-24 19:15:43,555 INFO L226 Difference]: Without dead ends: 751 [2020-09-24 19:15:43,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-24 19:15:43,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-09-24 19:15:43,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 654. [2020-09-24 19:15:43,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 654 states. [2020-09-24 19:15:43,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 732 transitions. [2020-09-24 19:15:43,666 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 732 transitions. Word has length 230 [2020-09-24 19:15:43,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:43,667 INFO L479 AbstractCegarLoop]: Abstraction has 654 states and 732 transitions. [2020-09-24 19:15:43,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:15:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 732 transitions. [2020-09-24 19:15:43,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:15:43,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:43,673 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:43,674 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:15:43,674 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:43,674 INFO L82 PathProgramCache]: Analyzing trace with hash 880367573, now seen corresponding path program 1 times [2020-09-24 19:15:43,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:43,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [505484828] [2020-09-24 19:15:43,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:43,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:44,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:44,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:15:44,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:44,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 892 [2020-09-24 19:15:44,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 192 [2020-09-24 19:15:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:44,990 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:44,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:45,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 19:15:45,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:45,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:45,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:45,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:45,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:45,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:45,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:45,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:45,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-24 19:15:45,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 19:15:45,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:45,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:45,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:45,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-24 19:15:45,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:15:45,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:45,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:45,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 19:15:45,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:45,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:15:45,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:15:45,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:45,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:15:45,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:15:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:45,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:45,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 19:15:45,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 19:15:45,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:45,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:45,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:45,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:45,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:45,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:45,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:45,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:15:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:15:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:45,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:45,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:45,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:45,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:45,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:45,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:45,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:45,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:45,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:45,648 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:45,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [505484828] [2020-09-24 19:15:45,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:45,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:15:45,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778260598] [2020-09-24 19:15:45,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:15:45,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:45,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:15:45,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:15:45,654 INFO L87 Difference]: Start difference. First operand 654 states and 732 transitions. Second operand 9 states. [2020-09-24 19:15:46,933 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:15:47,240 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:15:47,588 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:47,942 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 19:15:48,229 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:15:49,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:49,170 INFO L93 Difference]: Finished difference Result 1298 states and 1530 transitions. [2020-09-24 19:15:49,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:15:49,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 230 [2020-09-24 19:15:49,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:49,177 INFO L225 Difference]: With dead ends: 1298 [2020-09-24 19:15:49,177 INFO L226 Difference]: Without dead ends: 759 [2020-09-24 19:15:49,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:15:49,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2020-09-24 19:15:49,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 666. [2020-09-24 19:15:49,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2020-09-24 19:15:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 744 transitions. [2020-09-24 19:15:49,286 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 744 transitions. Word has length 230 [2020-09-24 19:15:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:49,287 INFO L479 AbstractCegarLoop]: Abstraction has 666 states and 744 transitions. [2020-09-24 19:15:49,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:15:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 744 transitions. [2020-09-24 19:15:49,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-24 19:15:49,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:49,292 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:49,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:15:49,293 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:49,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:49,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1607472850, now seen corresponding path program 1 times [2020-09-24 19:15:49,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:49,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65634139] [2020-09-24 19:15:49,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:49,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:49,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 281 [2020-09-24 19:15:50,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1034 [2020-09-24 19:15:50,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:15:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:15:50,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-24 19:15:50,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:50,703 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:50,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:50,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:50,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:50,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:50,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:50,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-24 19:15:50,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:50,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:15:50,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:51,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:51,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:51,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:51,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:51,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:15:51,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:51,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 19:15:51,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:15:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:51,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:51,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 19:15:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:51,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 19:15:51,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 19:15:51,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-24 19:15:51,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:51,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 19:15:51,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:51,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:51,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:15:51,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:51,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:51,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:51,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:51,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:51,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:15:51,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:51,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:15:51,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:51,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:51,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:51,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:15:51,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:51,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 19:15:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:51,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:51,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:51,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 19:15:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:51,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:51,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:51,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:51,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:51,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:51,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65634139] [2020-09-24 19:15:51,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:51,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 19:15:51,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470894049] [2020-09-24 19:15:51,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 19:15:51,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:51,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 19:15:51,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:15:51,509 INFO L87 Difference]: Start difference. First operand 666 states and 744 transitions. Second operand 7 states. [2020-09-24 19:15:52,106 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:52,780 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:15:55,348 INFO L93 Difference]: Finished difference Result 1865 states and 2221 transitions. [2020-09-24 19:15:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:15:55,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 230 [2020-09-24 19:15:55,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:15:55,359 INFO L225 Difference]: With dead ends: 1865 [2020-09-24 19:15:55,360 INFO L226 Difference]: Without dead ends: 1314 [2020-09-24 19:15:55,364 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:15:55,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2020-09-24 19:15:55,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1211. [2020-09-24 19:15:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1211 states. [2020-09-24 19:15:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1379 transitions. [2020-09-24 19:15:55,522 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1379 transitions. Word has length 230 [2020-09-24 19:15:55,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:15:55,522 INFO L479 AbstractCegarLoop]: Abstraction has 1211 states and 1379 transitions. [2020-09-24 19:15:55,522 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 19:15:55,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1379 transitions. [2020-09-24 19:15:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-09-24 19:15:55,528 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:15:55,528 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:15:55,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:15:55,529 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:15:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:15:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1130657052, now seen corresponding path program 1 times [2020-09-24 19:15:55,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:15:55,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495524882] [2020-09-24 19:15:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:15:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:55,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:56,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:56,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 19:15:56,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:15:56,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1017 [2020-09-24 19:15:56,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 19:15:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 145 [2020-09-24 19:15:56,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-24 19:15:56,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:56,982 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:15:56,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 19:15:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-09-24 19:15:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 19:15:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 19:15:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 19:15:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:15:57,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 19:15:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:15:57,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 19:15:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:57,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:15:57,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:15:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:15:57,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:57,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:57,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 19:15:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 19:15:57,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:57,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 19:15:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:15:57,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:15:57,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 19:15:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-24 19:15:57,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-24 19:15:57,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:15:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:15:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:15:57,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:15:57,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:15:57,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:15:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:15:57,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:15:57,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:15:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:15:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-24 19:15:57,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 19:15:57,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:15:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-24 19:15:57,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:57,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 19:15:57,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 19:15:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,462 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-24 19:15:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:15:57,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:15:57,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-24 19:15:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:15:57,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:15:57,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:15:57,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:15:57,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:15:57,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 19:15:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:15:57,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:15:57,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:15:57,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:15:57,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:15:57,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:15:57,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:15:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:15:57,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:15:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:15:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:15:57,587 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 19:15:57,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495524882] [2020-09-24 19:15:57,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:15:57,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-24 19:15:57,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960026654] [2020-09-24 19:15:57,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 19:15:57,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:15:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 19:15:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-09-24 19:15:57,590 INFO L87 Difference]: Start difference. First operand 1211 states and 1379 transitions. Second operand 14 states. [2020-09-24 19:15:58,122 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:15:59,066 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:00,024 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:00,353 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:00,703 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:16:01,070 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:01,411 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:16:01,751 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:16:02,212 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:16:03,261 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191