/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:54:39,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:54:39,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:54:39,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:54:39,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:54:39,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:54:39,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:54:39,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:54:39,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:54:39,401 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:54:39,402 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:54:39,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:54:39,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:54:39,404 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:54:39,405 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:54:39,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:54:39,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:54:39,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:54:39,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:54:39,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:54:39,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:54:39,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:54:39,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:54:39,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:54:39,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:54:39,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:54:39,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:54:39,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:54:39,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:54:39,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:54:39,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:54:39,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:54:39,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:54:39,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:54:39,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:54:39,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:54:39,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:54:39,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:54:39,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:54:39,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:54:39,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:54:39,435 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:54:39,484 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:54:39,485 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:54:39,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:54:39,486 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:54:39,486 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:54:39,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:54:39,488 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:54:39,488 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:54:39,488 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:54:39,488 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:54:39,488 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:54:39,489 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:54:39,489 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:54:39,489 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:54:39,489 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:54:39,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:54:39,490 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:54:39,491 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:54:39,492 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:54:39,492 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:54:39,492 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:54:39,492 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:54:39,492 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:54:39,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:54:39,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:54:39,493 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:54:39,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:54:39,493 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:54:39,494 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:54:39,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:54:39,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:54:39,957 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:54:39,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:54:39,963 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:54:39,964 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:54:39,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-25 01:54:40,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4d6ac81f/61b068ac2dbf4ca0b9096e9357c01781/FLAG0577a0428 [2020-09-25 01:54:40,637 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:54:40,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product58.cil.c [2020-09-25 01:54:40,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4d6ac81f/61b068ac2dbf4ca0b9096e9357c01781/FLAG0577a0428 [2020-09-25 01:54:40,921 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b4d6ac81f/61b068ac2dbf4ca0b9096e9357c01781 [2020-09-25 01:54:40,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:54:40,941 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:54:40,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:54:40,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:54:40,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:54:40,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:54:40" (1/1) ... [2020-09-25 01:54:40,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:40, skipping insertion in model container [2020-09-25 01:54:40,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:54:40" (1/1) ... [2020-09-25 01:54:40,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:54:41,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:54:41,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:54:41,447 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:54:41,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:54:41,659 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:54:41,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41 WrapperNode [2020-09-25 01:54:41,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:54:41,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:54:41,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:54:41,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:54:41,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... [2020-09-25 01:54:41,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:54:41,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:54:41,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:54:41,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:54:41,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:54:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:54:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:54:41,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:54:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:54:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:54:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:54:41,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:54:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:54:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:54:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:54:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:54:41,878 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:54:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:54:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:54:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:54:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:54:41,879 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:54:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:54:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 01:54:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:54:41,880 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:54:41,881 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:54:41,882 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:54:41,883 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 01:54:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:54:41,884 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:54:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:54:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:54:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:54:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:54:41,884 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:54:41,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:54:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:54:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:54:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:54:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:54:41,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:54:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:54:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:54:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:54:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:54:41,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:54:41,888 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:54:41,889 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:54:41,890 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:54:41,891 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 01:54:41,892 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 01:54:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:54:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:54:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:54:41,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:54:43,158 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:54:43,158 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:54:43,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:54:43 BoogieIcfgContainer [2020-09-25 01:54:43,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:54:43,167 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:54:43,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:54:43,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:54:43,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:54:40" (1/3) ... [2020-09-25 01:54:43,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b66dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:54:43, skipping insertion in model container [2020-09-25 01:54:43,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:54:41" (2/3) ... [2020-09-25 01:54:43,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b66dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:54:43, skipping insertion in model container [2020-09-25 01:54:43,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:54:43" (3/3) ... [2020-09-25 01:54:43,175 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-09-25 01:54:43,186 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:54:43,198 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:54:43,217 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:54:43,246 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:54:43,247 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:54:43,247 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:54:43,247 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:54:43,247 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:54:43,247 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:54:43,247 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:54:43,248 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:54:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states. [2020-09-25 01:54:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:54:43,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:43,296 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] [2020-09-25 01:54:43,296 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:43,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:43,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1259360700, now seen corresponding path program 1 times [2020-09-25 01:54:43,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:43,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104232098] [2020-09-25 01:54:43,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:43,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:44,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:45,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:46,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:48,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:48,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:54:48,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:54:48,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:54:48,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:48,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:48,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:54:48,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:48,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 01:54:49,172 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:49,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:49,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 01:54:49,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:49,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:49,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:54:49,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:49,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:49,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:49,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:49,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:49,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:49,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:49,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:49,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:49,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:49,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:54:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:49,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:49,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:49,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:54:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:49,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:49,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:49,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:49,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:49,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:49,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:49,483 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104232098] [2020-09-25 01:54:49,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:49,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:54:49,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325243840] [2020-09-25 01:54:49,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:54:49,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:49,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:54:49,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:54:49,516 INFO L87 Difference]: Start difference. First operand 338 states. Second operand 3 states. [2020-09-25 01:54:51,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:54:51,109 INFO L93 Difference]: Finished difference Result 544 states and 638 transitions. [2020-09-25 01:54:51,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:54:51,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:54:51,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:54:51,134 INFO L225 Difference]: With dead ends: 544 [2020-09-25 01:54:51,134 INFO L226 Difference]: Without dead ends: 331 [2020-09-25 01:54:51,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:54:51,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-25 01:54:51,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 287. [2020-09-25 01:54:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-09-25 01:54:51,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 310 transitions. [2020-09-25 01:54:51,263 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 310 transitions. Word has length 142 [2020-09-25 01:54:51,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:54:51,264 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 310 transitions. [2020-09-25 01:54:51,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:54:51,265 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 310 transitions. [2020-09-25 01:54:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:54:51,270 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:51,271 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] [2020-09-25 01:54:51,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:54:51,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:51,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:51,272 INFO L82 PathProgramCache]: Analyzing trace with hash -167797662, now seen corresponding path program 1 times [2020-09-25 01:54:51,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:51,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690119743] [2020-09-25 01:54:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:51,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:51,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:52,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:53,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:54,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:54:56,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:54:56,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 01:54:56,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:54:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:54:56,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:54:56,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:56,684 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:54:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:54:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:54:56,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:54:56,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:56,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:56,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:54:56,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:56,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:56,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:56,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:54:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:56,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:56,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:56,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:54:56,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:56,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:54:56,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:56,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:56,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:54:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:54:56,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:56,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:54:56,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:56,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:54:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:56,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:54:56,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:54:56,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:54:56,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:56,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:56,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:54:56,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:54:56,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:54:56,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:54:56,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:54:56,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:54:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:54:56,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:54:56,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:54:56,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:54:56,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690119743] [2020-09-25 01:54:56,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:54:56,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:54:56,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080964127] [2020-09-25 01:54:56,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:54:56,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:54:56,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:54:56,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:54:56,925 INFO L87 Difference]: Start difference. First operand 287 states and 310 transitions. Second operand 4 states. [2020-09-25 01:54:57,584 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:54:58,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:54:58,643 INFO L93 Difference]: Finished difference Result 457 states and 509 transitions. [2020-09-25 01:54:58,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:54:58,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:54:58,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:54:58,653 INFO L225 Difference]: With dead ends: 457 [2020-09-25 01:54:58,653 INFO L226 Difference]: Without dead ends: 314 [2020-09-25 01:54:58,655 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:54:58,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-09-25 01:54:58,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 277. [2020-09-25 01:54:58,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 01:54:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 297 transitions. [2020-09-25 01:54:58,757 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 297 transitions. Word has length 143 [2020-09-25 01:54:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:54:58,758 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 297 transitions. [2020-09-25 01:54:58,758 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:54:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 297 transitions. [2020-09-25 01:54:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:54:58,764 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:54:58,764 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] [2020-09-25 01:54:58,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:54:58,765 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:54:58,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:54:58,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1124813631, now seen corresponding path program 1 times [2020-09-25 01:54:58,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:54:58,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925522880] [2020-09-25 01:54:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:54:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:54:58,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:59,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:54:59,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:01,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:03,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:03,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:55:03,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:55:03,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 01:55:03,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:55:03,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:03,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:04,157 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:04,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:55:04,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:04,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:04,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:04,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:04,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 31 [2020-09-25 01:55:04,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:04,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:04,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:04,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:04,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:04,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:04,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:04,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:04,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:55:04,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:55:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:04,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:04,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:04,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:55:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:04,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:04,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:04,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:04,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:04,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:04,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:04,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:04,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:04,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:04,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:04,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925522880] [2020-09-25 01:55:04,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:04,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:55:04,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417707053] [2020-09-25 01:55:04,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:55:04,451 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:04,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:55:04,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:55:04,452 INFO L87 Difference]: Start difference. First operand 277 states and 297 transitions. Second operand 5 states. [2020-09-25 01:55:05,089 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:55:06,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:06,302 INFO L93 Difference]: Finished difference Result 503 states and 571 transitions. [2020-09-25 01:55:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:55:06,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:55:06,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:06,310 INFO L225 Difference]: With dead ends: 503 [2020-09-25 01:55:06,310 INFO L226 Difference]: Without dead ends: 336 [2020-09-25 01:55:06,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:55:06,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2020-09-25 01:55:06,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 277. [2020-09-25 01:55:06,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2020-09-25 01:55:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 296 transitions. [2020-09-25 01:55:06,374 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 296 transitions. Word has length 156 [2020-09-25 01:55:06,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:06,376 INFO L479 AbstractCegarLoop]: Abstraction has 277 states and 296 transitions. [2020-09-25 01:55:06,376 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:55:06,376 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 296 transitions. [2020-09-25 01:55:06,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 01:55:06,380 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:06,380 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] [2020-09-25 01:55:06,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:55:06,381 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:06,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:06,381 INFO L82 PathProgramCache]: Analyzing trace with hash -1772447234, now seen corresponding path program 1 times [2020-09-25 01:55:06,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:06,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71334811] [2020-09-25 01:55:06,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:06,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:06,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:08,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:09,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:09,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:09,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 01:55:11,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 01:55:11,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 01:55:11,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-09-25 01:55:11,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:11,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,765 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:11,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:11,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 01:55:11,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:11,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:11,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:11,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:11,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:11,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:11,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:11,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:11,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:11,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:11,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:11,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:11,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:11,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:11,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:11,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:11,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:55:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 01:55:11,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 01:55:11,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 01:55:11,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 01:55:11,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:11,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:11,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:55:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:11,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:55:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:55:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:12,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:12,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:12,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:12,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:12,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:12,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:12,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:12,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:12,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:55:12,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:12,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:55:12,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:12,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 01:55:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:12,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:12,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:12,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:12,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:12,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:12,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:12,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:12,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 01:55:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:12,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:12,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:12,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:12,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:12,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:12,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:12,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:12,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:55:12,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:12,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71334811] [2020-09-25 01:55:12,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:12,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 01:55:12,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631490050] [2020-09-25 01:55:12,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 01:55:12,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:12,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 01:55:12,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:55:12,058 INFO L87 Difference]: Start difference. First operand 277 states and 296 transitions. Second operand 7 states. [2020-09-25 01:55:12,588 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:55:14,270 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:15,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:15,301 INFO L93 Difference]: Finished difference Result 683 states and 801 transitions. [2020-09-25 01:55:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 01:55:15,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 169 [2020-09-25 01:55:15,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:15,307 INFO L225 Difference]: With dead ends: 683 [2020-09-25 01:55:15,307 INFO L226 Difference]: Without dead ends: 516 [2020-09-25 01:55:15,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:55:15,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-09-25 01:55:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 389. [2020-09-25 01:55:15,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-09-25 01:55:15,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 417 transitions. [2020-09-25 01:55:15,363 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 417 transitions. Word has length 169 [2020-09-25 01:55:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:15,363 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 417 transitions. [2020-09-25 01:55:15,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 01:55:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 417 transitions. [2020-09-25 01:55:15,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 01:55:15,366 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:15,366 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] [2020-09-25 01:55:15,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:55:15,367 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:15,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:15,367 INFO L82 PathProgramCache]: Analyzing trace with hash 184026520, now seen corresponding path program 1 times [2020-09-25 01:55:15,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:15,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332498958] [2020-09-25 01:55:15,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:15,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:15,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:17,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:18,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-25 01:55:20,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:55:20,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 01:55:20,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:55:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 01:55:20,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:20,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,716 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:55:20,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:55:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:55:20,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 01:55:20,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:55:20,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:20,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:20,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:55:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:20,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:55:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:55:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:20,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:20,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:55:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:20,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:55:20,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:20,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:20,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:20,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:20,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:55:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:20,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:20,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 01:55:21,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:55:21,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-09-25 01:55:21,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:55:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:55:21,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:21,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:21,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:55:21,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:55:21,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 152 [2020-09-25 01:55:21,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:55:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:55:21,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:21,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:55:21,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:55:21,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:21,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:55:21,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:55:21,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:55:21,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:55:21,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:55:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:55:21,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:21,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:55:21,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:55:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:55:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:55:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:55:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:55:21,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:21,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 01:55:21,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:21,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 01:55:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:21,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:21,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:55:21,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:21,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:21,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:21,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 01:55:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:21,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:21,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:55:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:55:21,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:55:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:55:21,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:55:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:55:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:55:21,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:55:21,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:55:21,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:55:21,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332498958] [2020-09-25 01:55:21,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:55:21,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:55:21,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215320756] [2020-09-25 01:55:21,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:55:21,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:55:21,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:55:21,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:55:21,364 INFO L87 Difference]: Start difference. First operand 389 states and 417 transitions. Second operand 9 states. [2020-09-25 01:55:22,473 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:22,757 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:55:23,047 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:23,347 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:55:23,623 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:55:25,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:55:25,079 INFO L93 Difference]: Finished difference Result 800 states and 932 transitions. [2020-09-25 01:55:25,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:55:25,080 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 193 [2020-09-25 01:55:25,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:55:25,085 INFO L225 Difference]: With dead ends: 800 [2020-09-25 01:55:25,085 INFO L226 Difference]: Without dead ends: 521 [2020-09-25 01:55:25,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:55:25,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2020-09-25 01:55:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 395. [2020-09-25 01:55:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-09-25 01:55:25,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 423 transitions. [2020-09-25 01:55:25,135 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 423 transitions. Word has length 193 [2020-09-25 01:55:25,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:55:25,136 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 423 transitions. [2020-09-25 01:55:25,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:55:25,136 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 423 transitions. [2020-09-25 01:55:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 01:55:25,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:55:25,139 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] [2020-09-25 01:55:25,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:55:25,139 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:55:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:55:25,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1323820344, now seen corresponding path program 1 times [2020-09-25 01:55:25,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:55:25,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [191394883] [2020-09-25 01:55:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:55:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:55:25,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:26,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:26,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:55:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking...