/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=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:15:37,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:15:37,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:15:37,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:15:37,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:15:37,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:15:37,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:15:37,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:15:37,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:15:37,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:15:37,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:15:37,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:15:37,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:15:37,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:15:37,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:15:37,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:15:37,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:15:37,314 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:15:37,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:15:37,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:15:37,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:15:37,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:15:37,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:15:37,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:15:37,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:15:37,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:15:37,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:15:37,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:15:37,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:15:37,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:15:37,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:15:37,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:15:37,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:15:37,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:15:37,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:15:37,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:15:37,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:15:37,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:15:37,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:15:37,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:15:37,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:15:37,345 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 21:15:37,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:15:37,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:15:37,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:15:37,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:15:37,373 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:15:37,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:15:37,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:15:37,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:15:37,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:15:37,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:15:37,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:15:37,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:15:37,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:15:37,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:15:37,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:15:37,375 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:15:37,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:15:37,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:15:37,376 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:15:37,376 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:15:37,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:15:37,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:15:37,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:15:37,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:15:37,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:15:37,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:15:37,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:15:37,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:15:37,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:15:37,378 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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;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=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:15:37,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:15:37,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:15:37,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:15:37,870 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:15:37,872 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:15:37,873 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-24 21:15:37,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7c9915e4/e195bdbc2e90451f85c53b55ce3c770c/FLAG7000072d0 [2020-09-24 21:15:38,558 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:15:38,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product34.cil.c [2020-09-24 21:15:38,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7c9915e4/e195bdbc2e90451f85c53b55ce3c770c/FLAG7000072d0 [2020-09-24 21:15:38,831 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7c9915e4/e195bdbc2e90451f85c53b55ce3c770c [2020-09-24 21:15:38,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:15:38,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:15:38,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:38,859 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:15:38,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:15:38,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:38" (1/1) ... [2020-09-24 21:15:38,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:38, skipping insertion in model container [2020-09-24 21:15:38,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:15:38" (1/1) ... [2020-09-24 21:15:38,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:15:38,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:15:39,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:39,426 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:15:39,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:15:39,576 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:15:39,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39 WrapperNode [2020-09-24 21:15:39,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:15:39,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:15:39,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:15:39,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:15:39,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (1/1) ... [2020-09-24 21:15:39,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:15:39,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:15:39,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:15:39,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:15:39,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (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 21:15:39,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:15:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:15:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:15:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:15:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:15:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:15:39,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:15:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:15:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:15:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:15:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:15:39,745 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:15:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:15:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:15:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:15:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:15:39,746 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:15:39,747 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:15:39,748 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:15:39,749 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:15:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:15:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:15:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:15:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:15:39,749 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:15:39,750 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:15:39,751 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:15:39,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:15:39,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:15:39,754 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:15:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:15:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:15:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:15:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:15:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:15:39,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:15:40,857 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:15:40,857 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:15:40,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:40 BoogieIcfgContainer [2020-09-24 21:15:40,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:15:40,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:15:40,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:15:40,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:15:40,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:15:38" (1/3) ... [2020-09-24 21:15:40,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4498a9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:40, skipping insertion in model container [2020-09-24 21:15:40,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:15:39" (2/3) ... [2020-09-24 21:15:40,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4498a9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:15:40, skipping insertion in model container [2020-09-24 21:15:40,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:15:40" (3/3) ... [2020-09-24 21:15:40,873 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2020-09-24 21:15:40,884 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:15:40,896 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:15:40,915 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:15:40,942 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:15:40,943 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:15:40,943 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:15:40,943 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:15:40,943 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:15:40,943 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:15:40,944 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:15:40,944 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:15:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-09-24 21:15:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 21:15:40,984 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:15:40,986 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:15:40,986 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:15:40,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:15:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1579336434, now seen corresponding path program 1 times [2020-09-24 21:15:41,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:15:41,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711249245] [2020-09-24 21:15:41,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:15:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:41,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:41,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:44,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:46,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:46,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 21:15:46,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:15:46,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-24 21:15:46,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:15:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 21:15:46,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:15:46,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:15:46,887 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:15:46,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:15:46,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:15:47,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-24 21:15:47,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:47,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 21:15:47,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:15:47,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:47,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:15:47,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:47,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:15:47,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:47,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:15:47,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:47,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:47,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:15:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:47,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:15:47,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:47,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:47,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:15:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:47,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:15:47,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:47,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:47,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:15:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:47,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:15:47,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:15:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:47,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:47,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:15:47,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 21:15:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:47,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:47,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:47,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:47,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:47,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:15:47,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:15:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:15:47,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:15:47,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:15:47,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711249245] [2020-09-24 21:15:47,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:15:47,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:15:47,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941280571] [2020-09-24 21:15:47,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:15:47,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:15:47,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:15:47,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:15:47,578 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 8 states. [2020-09-24 21:15:48,143 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:15:49,121 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:15:49,500 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:15:49,920 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:15:50,315 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:15:50,638 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:15:51,392 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:15:51,708 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:15:52,185 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:15:53,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:15:53,228 INFO L93 Difference]: Finished difference Result 567 states and 694 transitions. [2020-09-24 21:15:53,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 21:15:53,238 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-24 21:15:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:15:53,259 INFO L225 Difference]: With dead ends: 567 [2020-09-24 21:15:53,260 INFO L226 Difference]: Without dead ends: 379 [2020-09-24 21:15:53,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-24 21:15:53,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-09-24 21:15:53,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 327. [2020-09-24 21:15:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327 states. [2020-09-24 21:15:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 359 transitions. [2020-09-24 21:15:53,409 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 359 transitions. Word has length 142 [2020-09-24 21:15:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:15:53,410 INFO L479 AbstractCegarLoop]: Abstraction has 327 states and 359 transitions. [2020-09-24 21:15:53,410 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:15:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 359 transitions. [2020-09-24 21:15:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 21:15:53,418 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:15:53,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:15:53,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:15:53,419 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:15:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:15:53,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1313763562, now seen corresponding path program 1 times [2020-09-24 21:15:53,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:15:53,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198888015] [2020-09-24 21:15:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:15:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:53,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:53,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:53,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:57,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:57,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 21:15:57,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:15:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4251 [2020-09-24 21:15:57,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 21:15:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:15:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 21:15:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:15:58,069 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:15:58,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:15:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:15:58,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-24 21:15:58,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:15:58,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:15:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:58,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:15:58,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:58,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:15:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:58,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:15:58,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:58,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:15:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:58,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:15:58,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:58,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:15:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:15:58,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:15:58,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:15:58,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:15:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:15:58,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:15:58,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:15:58,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:15:58,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:15:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:15:58,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:15:58,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:15:58,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:15:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 21:15:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:58,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:15:58,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:15:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:58,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:15:58,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 21:15:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:15:58,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:15:58,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:15:58,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:15:58,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:15:58,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 21:15:58,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:15:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:15:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:15:58,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:15:58,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:15:58,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:15:58,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198888015] [2020-09-24 21:15:58,598 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:15:58,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:15:58,599 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594290811] [2020-09-24 21:15:58,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:15:58,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:15:58,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:15:58,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:15:58,602 INFO L87 Difference]: Start difference. First operand 327 states and 359 transitions. Second operand 10 states. [2020-09-24 21:15:59,140 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:00,585 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:00,914 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:01,337 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:01,711 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:16:02,086 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:16:02,798 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:03,095 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:03,519 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:04,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:04,840 INFO L93 Difference]: Finished difference Result 930 states and 1174 transitions. [2020-09-24 21:16:04,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 21:16:04,841 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-24 21:16:04,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:04,851 INFO L225 Difference]: With dead ends: 930 [2020-09-24 21:16:04,851 INFO L226 Difference]: Without dead ends: 713 [2020-09-24 21:16:04,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 21:16:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2020-09-24 21:16:04,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 489. [2020-09-24 21:16:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-09-24 21:16:04,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 565 transitions. [2020-09-24 21:16:04,973 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 565 transitions. Word has length 161 [2020-09-24 21:16:04,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:04,974 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 565 transitions. [2020-09-24 21:16:04,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:16:04,974 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 565 transitions. [2020-09-24 21:16:04,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 21:16:04,979 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:04,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:04,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:16:04,980 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:04,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash 2108873884, now seen corresponding path program 1 times [2020-09-24 21:16:04,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:04,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565157035] [2020-09-24 21:16:04,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:05,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:05,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:06,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-24 21:16:10,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-24 21:16:10,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-24 21:16:10,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 21:16:10,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-24 21:16:10,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:10,416 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:10,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:10,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-24 21:16:10,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:16:10,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:10,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:10,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:10,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:10,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:10,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:10,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:10,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:10,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:10,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:10,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:10,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:10,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 21:16:10,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:10,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:10,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 21:16:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-24 21:16:10,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:16:10,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-24 21:16:10,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:16:10,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:10,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:10,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:10,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:10,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:10,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-24 21:16:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:10,863 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:16:10,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-24 21:16:10,864 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:16:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:16:10,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:10,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:10,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 21:16:10,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:16:10,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:11,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:11,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:11,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:16:11,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:11,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:11,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:16:11,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-24 21:16:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:11,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:11,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:11,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-24 21:16:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:11,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:11,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:11,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:11,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:11,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:11,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:11,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:11,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:11,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:11,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:11,124 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-24 21:16:11,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565157035] [2020-09-24 21:16:11,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:11,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-24 21:16:11,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263389373] [2020-09-24 21:16:11,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-24 21:16:11,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:11,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-24 21:16:11,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-24 21:16:11,128 INFO L87 Difference]: Start difference. First operand 489 states and 565 transitions. Second operand 13 states. [2020-09-24 21:16:11,912 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:13,129 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:13,470 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:13,831 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:16:14,201 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:14,569 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:16:14,877 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 21:16:16,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:16,508 INFO L93 Difference]: Finished difference Result 1318 states and 1716 transitions. [2020-09-24 21:16:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 21:16:16,509 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 219 [2020-09-24 21:16:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:16,525 INFO L225 Difference]: With dead ends: 1318 [2020-09-24 21:16:16,526 INFO L226 Difference]: Without dead ends: 939 [2020-09-24 21:16:16,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=267, Invalid=993, Unknown=0, NotChecked=0, Total=1260 [2020-09-24 21:16:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2020-09-24 21:16:16,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 485. [2020-09-24 21:16:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2020-09-24 21:16:16,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 547 transitions. [2020-09-24 21:16:16,651 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 547 transitions. Word has length 219 [2020-09-24 21:16:16,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:16,653 INFO L479 AbstractCegarLoop]: Abstraction has 485 states and 547 transitions. [2020-09-24 21:16:16,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-24 21:16:16,653 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 547 transitions. [2020-09-24 21:16:16,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 21:16:16,657 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:16,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:16,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:16:16,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:16,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:16,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1809078841, now seen corresponding path program 1 times [2020-09-24 21:16:16,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:16,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117499416] [2020-09-24 21:16:16,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:16,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 21:16:17,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 732 [2020-09-24 21:16:17,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-09-24 21:16:17,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:17,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,785 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 21:16:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:17,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:17,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:17,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:17,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:17,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:17,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:17,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:17,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:17,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:17,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:17,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:17,996 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:17,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:17,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:17,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:17,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:18,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,014 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:18,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:18,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:18,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:16:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:18,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 21:16:18,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:16:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:18,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:18,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:18,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 21:16:18,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:16:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:16:18,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:16:18,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:18,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:16:18,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:16:18,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:18,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:18,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:18,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:18,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:16:18,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:18,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:16:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:18,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:16:18,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:18,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:18,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:16:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:18,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:18,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:18,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:18,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:18,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:18,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:18,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:18,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:18,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117499416] [2020-09-24 21:16:18,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:18,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:16:18,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266911250] [2020-09-24 21:16:18,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:16:18,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:18,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:16:18,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:16:18,299 INFO L87 Difference]: Start difference. First operand 485 states and 547 transitions. Second operand 10 states. [2020-09-24 21:16:19,589 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:19,894 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:20,212 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:20,551 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:16:20,848 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:16:22,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:16:22,101 INFO L93 Difference]: Finished difference Result 1226 states and 1578 transitions. [2020-09-24 21:16:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:16:22,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-24 21:16:22,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:16:22,111 INFO L225 Difference]: With dead ends: 1226 [2020-09-24 21:16:22,111 INFO L226 Difference]: Without dead ends: 851 [2020-09-24 21:16:22,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:16:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2020-09-24 21:16:22,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 497. [2020-09-24 21:16:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-09-24 21:16:22,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 559 transitions. [2020-09-24 21:16:22,188 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 559 transitions. Word has length 194 [2020-09-24 21:16:22,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:16:22,188 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 559 transitions. [2020-09-24 21:16:22,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:16:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 559 transitions. [2020-09-24 21:16:22,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-24 21:16:22,191 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:16:22,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:16:22,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:16:22,192 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:16:22,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:16:22,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1600730070, now seen corresponding path program 1 times [2020-09-24 21:16:22,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:16:22,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881365699] [2020-09-24 21:16:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:16:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:23,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:23,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-24 21:16:23,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1298 [2020-09-24 21:16:23,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:16:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 21:16:23,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-24 21:16:23,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:23,866 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 21:16:23,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:16:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:23,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 21:16:24,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-24 21:16:24,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 21:16:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 21:16:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:24,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 21:16:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:24,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:24,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:24,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 21:16:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:24,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:16:24,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:16:24,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 21:16:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:16:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:16:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:16:24,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:16:24,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:16:24,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:16:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:24,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:24,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:24,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:16:24,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 21:16:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:16:24,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 21:16:24,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-24 21:16:24,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-24 21:16:24,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:16:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:16:24,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:16:24,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:16:24,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:16:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:16:24,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:16:24,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:16:24,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:16:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:16:24,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:16:24,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:16:24,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:16:24,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:16:24,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-24 21:16:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:24,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:24,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:24,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:24,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:24,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 21:16:24,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:16:24,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:16:24,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:16:24,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:16:24,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:16:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:16:24,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:16:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:16:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:16:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:16:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:16:24,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:16:24,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881365699] [2020-09-24 21:16:24,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:16:24,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:16:24,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307073763] [2020-09-24 21:16:24,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:16:24,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:16:24,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:16:24,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:16:24,429 INFO L87 Difference]: Start difference. First operand 497 states and 559 transitions. Second operand 9 states. [2020-09-24 21:16:25,118 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 21:16:25,728 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186