/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:41:23,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:41:23,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:41:24,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:41:24,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:41:24,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:41:24,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:41:24,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:41:24,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:41:24,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:41:24,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:41:24,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:41:24,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:41:24,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:41:24,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:41:24,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:41:24,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:41:24,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:41:24,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:41:24,028 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:41:24,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:41:24,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:41:24,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:41:24,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:41:24,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:41:24,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:41:24,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:41:24,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:41:24,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:41:24,040 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:41:24,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:41:24,041 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:41:24,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:41:24,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:41:24,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:41:24,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:41:24,048 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:41:24,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:41:24,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:41:24,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:41:24,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:41:24,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 23:41:24,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:41:24,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:41:24,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:41:24,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:41:24,097 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:41:24,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:41:24,098 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 23:41:24,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:41:24,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 23:41:24,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:41:24,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:41:24,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:41:24,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:41:24,099 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 23:41:24,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:41:24,099 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:41:24,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:41:24,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:41:24,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:41:24,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:41:24,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:41:24,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:41:24,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:41:24,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:41:24,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:41:24,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:41:24,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:41:24,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:41:24,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:41:24,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true; [2020-09-24 23:41:24,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:41:24,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:41:24,627 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:41:24,629 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:41:24,629 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:41:24,632 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 23:41:24,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eeec29a9/a2490c02fd884066b9ffebfd1d71fe85/FLAG9ec79b432 [2020-09-24 23:41:25,348 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:41:25,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product35.cil.c [2020-09-24 23:41:25,362 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eeec29a9/a2490c02fd884066b9ffebfd1d71fe85/FLAG9ec79b432 [2020-09-24 23:41:25,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1eeec29a9/a2490c02fd884066b9ffebfd1d71fe85 [2020-09-24 23:41:25,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:41:25,640 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:41:25,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:41:25,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:41:25,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:41:25,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:41:25" (1/1) ... [2020-09-24 23:41:25,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566ddefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:25, skipping insertion in model container [2020-09-24 23:41:25,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:41:25" (1/1) ... [2020-09-24 23:41:25,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:41:25,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:41:26,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:41:26,110 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:41:26,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:41:26,333 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:41:26,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26 WrapperNode [2020-09-24 23:41:26,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:41:26,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:41:26,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:41:26,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:41:26,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... [2020-09-24 23:41:26,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:41:26,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:41:26,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:41:26,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:41:26,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:41:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:41:26,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 23:41:26,531 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 23:41:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:41:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 23:41:26,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 23:41:26,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 23:41:26,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 23:41:26,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 23:41:26,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 23:41:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 23:41:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 23:41:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 23:41:26,540 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 23:41:26,541 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 23:41:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 23:41:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 23:41:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 23:41:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 23:41:26,542 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 23:41:26,543 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 23:41:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 23:41:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:41:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:41:26,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:41:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:41:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:41:26,544 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 23:41:26,545 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 23:41:26,546 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:41:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 23:41:26,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 23:41:26,549 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 23:41:26,550 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 23:41:26,551 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 23:41:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:41:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:41:26,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:41:27,738 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:41:27,739 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 23:41:27,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:41:27 BoogieIcfgContainer [2020-09-24 23:41:27,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:41:27,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:41:27,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:41:27,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:41:27,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:41:25" (1/3) ... [2020-09-24 23:41:27,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725074dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:41:27, skipping insertion in model container [2020-09-24 23:41:27,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:41:26" (2/3) ... [2020-09-24 23:41:27,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@725074dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:41:27, skipping insertion in model container [2020-09-24 23:41:27,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:41:27" (3/3) ... [2020-09-24 23:41:27,757 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2020-09-24 23:41:27,769 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:41:27,779 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:41:27,801 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:41:27,832 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:41:27,833 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:41:27,833 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:41:27,833 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:41:27,833 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:41:27,833 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:41:27,833 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:41:27,834 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:41:27,864 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states. [2020-09-24 23:41:27,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 23:41:27,884 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:27,885 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 23:41:27,886 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:27,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:27,895 INFO L82 PathProgramCache]: Analyzing trace with hash -956249494, now seen corresponding path program 1 times [2020-09-24 23:41:27,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:27,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108710155] [2020-09-24 23:41:27,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:28,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:28,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:30,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:30,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:33,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:33,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:33,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 23:41:33,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 23:41:33,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-24 23:41:33,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:33,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 23:41:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 23:41:33,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 23:41:33,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 23:41:33,993 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:33,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:34,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-24 23:41:34,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 23:41:34,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:34,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:34,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:34,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:34,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:34,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:34,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:34,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:41:34,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:34,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:34,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:41:34,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:34,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:34,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:34,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:41:34,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 23:41:34,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:34,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 23:41:34,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:41:34,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:34,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:34,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:34,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:34,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:34,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 23:41:34,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:34,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:41:34,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:34,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 23:41:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:34,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:34,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:34,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:34,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:34,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:41:34,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:34,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:34,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:34,615 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 23:41:34,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108710155] [2020-09-24 23:41:34,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:41:34,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:41:34,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633155986] [2020-09-24 23:41:34,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:41:34,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:34,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:41:34,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:41:34,653 INFO L87 Difference]: Start difference. First operand 300 states. Second operand 9 states. [2020-09-24 23:41:35,362 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:36,148 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:36,434 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:41:37,735 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:38,041 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:38,419 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:39,032 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:39,354 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:41:39,618 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:39,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:41:39,981 INFO L93 Difference]: Finished difference Result 561 states and 684 transitions. [2020-09-24 23:41:39,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 23:41:39,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 23:41:39,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:41:40,003 INFO L225 Difference]: With dead ends: 561 [2020-09-24 23:41:40,003 INFO L226 Difference]: Without dead ends: 385 [2020-09-24 23:41:40,010 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 23:41:40,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-09-24 23:41:40,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 336. [2020-09-24 23:41:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 23:41:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 377 transitions. [2020-09-24 23:41:40,132 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 377 transitions. Word has length 160 [2020-09-24 23:41:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:41:40,133 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 377 transitions. [2020-09-24 23:41:40,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:41:40,133 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 377 transitions. [2020-09-24 23:41:40,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 23:41:40,140 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:40,140 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] [2020-09-24 23:41:40,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:41:40,141 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:40,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:40,142 INFO L82 PathProgramCache]: Analyzing trace with hash 640183005, now seen corresponding path program 1 times [2020-09-24 23:41:40,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:40,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459520646] [2020-09-24 23:41:40,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:40,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:40,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 23:41:42,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:41:42,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-09-24 23:41:42,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 23:41:42,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:41:42,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,618 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:42,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:42,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-24 23:41:42,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:42,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:42,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:42,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:42,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:42,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:42,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:42,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:42,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:42,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:42,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:41:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:42,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:42,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:41:42,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:42,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:42,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:42,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:42,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:42,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:42,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:41:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:42,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:42,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:41:42,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:41:42,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-24 23:41:42,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 23:41:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 23:41:42,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:41:42,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:42,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:42,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:41:43,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 23:41:43,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 23:41:43,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:43,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:41:43,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:41:43,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:43,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:43,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:43,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:41:43,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:43,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:43,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:41:43,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:43,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 23:41:43,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:43,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:43,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:43,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:43,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 23:41:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:43,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:43,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:43,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:43,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:43,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:43,183 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 23:41:43,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459520646] [2020-09-24 23:41:43,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:41:43,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 23:41:43,185 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752296328] [2020-09-24 23:41:43,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 23:41:43,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:43,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 23:41:43,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:41:43,191 INFO L87 Difference]: Start difference. First operand 336 states and 377 transitions. Second operand 11 states. [2020-09-24 23:41:43,982 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:45,290 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:45,606 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:41:45,924 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:41:46,278 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:46,640 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 23:41:46,983 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:41:47,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:41:47,555 INFO L93 Difference]: Finished difference Result 616 states and 728 transitions. [2020-09-24 23:41:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:41:47,556 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 194 [2020-09-24 23:41:47,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:41:47,567 INFO L225 Difference]: With dead ends: 616 [2020-09-24 23:41:47,567 INFO L226 Difference]: Without dead ends: 395 [2020-09-24 23:41:47,573 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2020-09-24 23:41:47,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-24 23:41:47,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 330. [2020-09-24 23:41:47,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-09-24 23:41:47,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 362 transitions. [2020-09-24 23:41:47,647 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 362 transitions. Word has length 194 [2020-09-24 23:41:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:41:47,647 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 362 transitions. [2020-09-24 23:41:47,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 23:41:47,648 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 362 transitions. [2020-09-24 23:41:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 23:41:47,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:47,652 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] [2020-09-24 23:41:47,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:41:47,653 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:47,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:47,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1066360845, now seen corresponding path program 1 times [2020-09-24 23:41:47,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:47,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31874216] [2020-09-24 23:41:47,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:48,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:48,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 23:41:48,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:48,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-24 23:41:48,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:48,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:48,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 23:41:48,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:41:48,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:48,838 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:48,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:48,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:48,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:48,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:48,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:48,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 23:41:48,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:48,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:48,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:48,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:48,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:48,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:48,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:48,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:49,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:49,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:49,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:49,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:49,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:49,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:41:49,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:49,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:49,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:49,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:49,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:49,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:41:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:49,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:49,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:49,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:49,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:41:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:41:49,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 23:41:49,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 23:41:49,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:41:49,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:41:49,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 23:41:49,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:41:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 23:41:49,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 23:41:49,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:41:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:41:49,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 23:41:49,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 23:41:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:49,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:49,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:41:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:49,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:49,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 23:41:49,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 23:41:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:49,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:49,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 23:41:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:49,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:49,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:49,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:49,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:49,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:49,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:49,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:49,406 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 23:41:49,407 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31874216] [2020-09-24 23:41:49,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:41:49,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 23:41:49,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253842060] [2020-09-24 23:41:49,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 23:41:49,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:49,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 23:41:49,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 23:41:49,409 INFO L87 Difference]: Start difference. First operand 330 states and 362 transitions. Second operand 9 states. [2020-09-24 23:41:50,807 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:51,117 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:41:51,492 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:51,827 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:41:52,155 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:41:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:41:52,783 INFO L93 Difference]: Finished difference Result 621 states and 728 transitions. [2020-09-24 23:41:52,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:41:52,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 203 [2020-09-24 23:41:52,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:41:52,788 INFO L225 Difference]: With dead ends: 621 [2020-09-24 23:41:52,788 INFO L226 Difference]: Without dead ends: 406 [2020-09-24 23:41:52,789 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 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 23:41:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-09-24 23:41:52,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 336. [2020-09-24 23:41:52,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-24 23:41:52,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 368 transitions. [2020-09-24 23:41:52,830 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 368 transitions. Word has length 203 [2020-09-24 23:41:52,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:41:52,831 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 368 transitions. [2020-09-24 23:41:52,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 23:41:52,831 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 368 transitions. [2020-09-24 23:41:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-24 23:41:52,836 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:52,836 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] [2020-09-24 23:41:52,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:41:52,836 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:52,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:52,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1097483760, now seen corresponding path program 1 times [2020-09-24 23:41:52,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:52,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1393000219] [2020-09-24 23:41:52,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:52,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:54,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:54,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-24 23:41:54,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:54,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1502 [2020-09-24 23:41:54,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 23:41:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:41:54,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-24 23:41:54,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:54,733 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:41:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:54,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:41:55,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 250 [2020-09-24 23:41:55,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:41:55,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:41:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:55,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:55,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:41:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:55,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:55,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:41:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:41:55,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:41:55,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:41:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:41:55,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:41:55,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:41:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:55,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:41:55,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:41:55,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 23:41:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:41:55,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:41:55,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:41:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:41:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:55,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:41:55,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 23:41:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:41:55,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:41:55,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 23:41:55,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 23:41:55,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:41:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:41:55,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-24 23:41:55,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:41:55,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:41:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:41:55,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:41:55,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:41:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:41:55,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:41:55,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:41:55,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:41:55,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:41:55,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-24 23:41:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:41:55,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:55,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-24 23:41:55,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:55,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:55,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:41:55,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:41:55,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:41:55,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:41:55,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:41:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:41:55,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:41:55,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:41:55,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:41:55,339 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 23:41:55,339 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1393000219] [2020-09-24 23:41:55,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:41:55,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 23:41:55,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105416172] [2020-09-24 23:41:55,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 23:41:55,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:41:55,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 23:41:55,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-24 23:41:55,342 INFO L87 Difference]: Start difference. First operand 336 states and 368 transitions. Second operand 7 states. [2020-09-24 23:41:56,057 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:57,501 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:41:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:41:59,341 INFO L93 Difference]: Finished difference Result 1010 states and 1233 transitions. [2020-09-24 23:41:59,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 23:41:59,342 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-09-24 23:41:59,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:41:59,348 INFO L225 Difference]: With dead ends: 1010 [2020-09-24 23:41:59,349 INFO L226 Difference]: Without dead ends: 789 [2020-09-24 23:41:59,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-09-24 23:41:59,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2020-09-24 23:41:59,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 669. [2020-09-24 23:41:59,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 669 states. [2020-09-24 23:41:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 770 transitions. [2020-09-24 23:41:59,475 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 770 transitions. Word has length 203 [2020-09-24 23:41:59,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:41:59,476 INFO L479 AbstractCegarLoop]: Abstraction has 669 states and 770 transitions. [2020-09-24 23:41:59,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 23:41:59,476 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 770 transitions. [2020-09-24 23:41:59,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-09-24 23:41:59,479 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:41:59,479 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] [2020-09-24 23:41:59,479 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 23:41:59,479 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:41:59,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:41:59,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1214904163, now seen corresponding path program 1 times [2020-09-24 23:41:59,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:41:59,481 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687998916] [2020-09-24 23:41:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:41:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:41:59,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:41:59,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:04,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:04,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 23:42:04,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:42:04,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-24 23:42:04,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 23:42:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 23:42:04,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-09-24 23:42:04,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:04,918 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 23:42:04,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 23:42:05,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-24 23:42:05,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 23:42:05,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 23:42:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:05,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:05,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:05,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 23:42:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:05,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:05,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:05,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 23:42:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:05,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:42:05,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:05,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:05,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 23:42:05,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 23:42:05,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:05,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:42:05,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 23:42:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:05,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 23:42:05,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 23:42:05,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:42:05,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 23:42:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 23:42:05,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 23:42:05,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 23:42:05,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 23:42:05,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 23:42:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 23:42:05,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 23:42:05,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:42:05,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:42:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:05,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 23:42:05,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 23:42:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 23:42:05,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 23:42:05,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:42:05,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-24 23:42:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 23:42:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 23:42:05,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 23:42:05,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:05,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 23:42:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 23:42:05,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 23:42:05,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:05,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:05,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 23:42:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:42:05,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 23:42:05,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:05,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-24 23:42:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:05,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 23:42:05,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 23:42:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:42:05,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 23:42:05,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 23:42:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:05,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:05,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:42:05,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:42:05,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:42:05,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 23:42:05,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-09-24 23:42:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:42:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 23:42:05,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:42:05,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:42:05,681 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 23:42:05,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687998916] [2020-09-24 23:42:05,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:42:05,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 23:42:05,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219717560] [2020-09-24 23:42:05,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 23:42:05,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:42:05,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 23:42:05,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-24 23:42:05,684 INFO L87 Difference]: Start difference. First operand 669 states and 770 transitions. Second operand 13 states. [2020-09-24 23:42:06,250 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 23:42:07,235 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:08,209 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 23:42:08,568 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 23:42:09,020 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:09,394 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:42:09,761 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:10,109 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:10,552 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 23:42:10,882 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:12,742 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 23:42:13,087 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 23:42:13,461 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 23:42:14,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:42:14,073 INFO L93 Difference]: Finished difference Result 1943 states and 2353 transitions. [2020-09-24 23:42:14,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-09-24 23:42:14,073 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-09-24 23:42:14,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:42:14,086 INFO L225 Difference]: With dead ends: 1943 [2020-09-24 23:42:14,086 INFO L226 Difference]: Without dead ends: 1389 [2020-09-24 23:42:14,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 531 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=388, Invalid=1592, Unknown=0, NotChecked=0, Total=1980 [2020-09-24 23:42:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2020-09-24 23:42:14,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1124. [2020-09-24 23:42:14,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1124 states. [2020-09-24 23:42:14,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1292 transitions. [2020-09-24 23:42:14,297 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1292 transitions. Word has length 208 [2020-09-24 23:42:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:42:14,298 INFO L479 AbstractCegarLoop]: Abstraction has 1124 states and 1292 transitions. [2020-09-24 23:42:14,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 23:42:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1292 transitions. [2020-09-24 23:42:14,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-09-24 23:42:14,304 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:42:14,305 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:42:14,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 23:42:14,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:42:14,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:42:14,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1749721614, now seen corresponding path program 1 times [2020-09-24 23:42:14,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:42:14,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87879953] [2020-09-24 23:42:14,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:42:14,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:42:14,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:42:14,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking...