/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=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 03:04:36,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 03:04:36,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 03:04:36,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 03:04:36,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 03:04:36,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 03:04:36,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 03:04:36,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 03:04:36,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 03:04:36,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 03:04:36,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 03:04:36,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 03:04:36,496 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 03:04:36,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 03:04:36,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 03:04:36,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 03:04:36,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 03:04:36,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 03:04:36,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 03:04:36,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 03:04:36,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 03:04:36,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 03:04:36,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 03:04:36,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 03:04:36,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 03:04:36,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 03:04:36,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 03:04:36,520 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 03:04:36,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 03:04:36,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 03:04:36,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 03:04:36,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 03:04:36,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 03:04:36,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 03:04:36,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 03:04:36,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 03:04:36,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 03:04:36,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 03:04:36,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 03:04:36,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 03:04:36,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 03:04:36,535 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 03:04:36,584 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 03:04:36,584 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 03:04:36,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 03:04:36,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 03:04:36,587 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 03:04:36,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 03:04:36,588 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 03:04:36,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 03:04:36,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 03:04:36,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 03:04:36,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 03:04:36,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 03:04:36,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 03:04:36,590 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 03:04:36,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 03:04:36,591 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 03:04:36,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 03:04:36,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 03:04:36,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 03:04:36,591 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 03:04:36,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 03:04:36,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 03:04:36,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 03:04:36,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 03:04:36,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 03:04:36,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 03:04:36,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 03:04:36,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 03:04:36,593 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 03:04:36,594 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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;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=WIDEST;log-additional-information=true; [2020-09-25 03:04:37,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 03:04:37,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 03:04:37,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 03:04:37,070 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 03:04:37,070 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 03:04:37,072 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 03:04:37,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb200e684/624249cb3f08484087d87775f6d65b35/FLAG408c9a6c3 [2020-09-25 03:04:37,787 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 03:04:37,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 03:04:37,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb200e684/624249cb3f08484087d87775f6d65b35/FLAG408c9a6c3 [2020-09-25 03:04:38,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eb200e684/624249cb3f08484087d87775f6d65b35 [2020-09-25 03:04:38,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 03:04:38,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 03:04:38,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:38,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 03:04:38,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 03:04:38,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e5903c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38, skipping insertion in model container [2020-09-25 03:04:38,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 03:04:38,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 03:04:38,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:38,623 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 03:04:38,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 03:04:38,848 INFO L208 MainTranslator]: Completed translation [2020-09-25 03:04:38,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38 WrapperNode [2020-09-25 03:04:38,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 03:04:38,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 03:04:38,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 03:04:38,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 03:04:38,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (1/1) ... [2020-09-25 03:04:38,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 03:04:38,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 03:04:38,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 03:04:38,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 03:04:38,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (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 03:04:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 03:04:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 03:04:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 03:04:39,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 03:04:39,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 03:04:39,083 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 03:04:39,083 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 03:04:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 03:04:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 03:04:39,084 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 03:04:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 03:04:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 03:04:39,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 03:04:39,086 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 03:04:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 03:04:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 03:04:39,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 03:04:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 03:04:39,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 03:04:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 03:04:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 03:04:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 03:04:39,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 03:04:39,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 03:04:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 03:04:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 03:04:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:39,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:39,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 03:04:39,096 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 03:04:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 03:04:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 03:04:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 03:04:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 03:04:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 03:04:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 03:04:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 03:04:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 03:04:39,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 03:04:39,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 03:04:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 03:04:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 03:04:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 03:04:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 03:04:39,100 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 03:04:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 03:04:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 03:04:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 03:04:39,101 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 03:04:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 03:04:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 03:04:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 03:04:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 03:04:39,102 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 03:04:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 03:04:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 03:04:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 03:04:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 03:04:39,103 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 03:04:39,104 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 03:04:39,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 03:04:40,332 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 03:04:40,332 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 03:04:40,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:40 BoogieIcfgContainer [2020-09-25 03:04:40,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 03:04:40,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 03:04:40,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 03:04:40,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 03:04:40,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 03:04:38" (1/3) ... [2020-09-25 03:04:40,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057990e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:40, skipping insertion in model container [2020-09-25 03:04:40,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 03:04:38" (2/3) ... [2020-09-25 03:04:40,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7057990e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 03:04:40, skipping insertion in model container [2020-09-25 03:04:40,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 03:04:40" (3/3) ... [2020-09-25 03:04:40,350 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2020-09-25 03:04:40,364 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 03:04:40,376 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 03:04:40,402 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 03:04:40,440 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 03:04:40,440 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 03:04:40,440 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 03:04:40,441 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 03:04:40,441 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 03:04:40,441 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 03:04:40,441 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 03:04:40,441 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 03:04:40,473 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 03:04:40,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 03:04:40,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:04:40,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:04:40,497 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:04:40,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:04:40,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1855283270, now seen corresponding path program 1 times [2020-09-25 03:04:40,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:04:40,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [211659987] [2020-09-25 03:04:40,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:04:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:41,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:41,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:41,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:42,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:43,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:45,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:45,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 03:04:45,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:04:45,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 03:04:45,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 03:04:45,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 03:04:45,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 03:04:46,517 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:04:46,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:46,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:46,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:04:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:46,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 03:04:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 03:04:46,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:04:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:47,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 25 [2020-09-25 03:04:47,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:04:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:04:47,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 03:04:47,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:04:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:47,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:04:47,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:47,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:04:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:47,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:47,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:47,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:04:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:47,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:47,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:04:47,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:04:47,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:47,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 03:04:47,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:04:47,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:47,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:47,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:47,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 03:04:47,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:47,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:47,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:47,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:47,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:47,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 03:04:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:47,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:47,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:47,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:47,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:47,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:04:47,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:47,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:47,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:47,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:47,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 03:04:47,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [211659987] [2020-09-25 03:04:47,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:04:47,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 03:04:47,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823282702] [2020-09-25 03:04:47,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 03:04:47,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:04:47,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 03:04:47,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 03:04:47,296 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 9 states. [2020-09-25 03:04:47,932 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:04:48,794 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:04:49,077 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:04:50,281 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:04:50,599 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:04:50,968 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:04:51,480 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:04:51,802 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:04:52,110 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:04:52,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:04:52,458 INFO L93 Difference]: Finished difference Result 538 states and 652 transitions. [2020-09-25 03:04:52,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 03:04:52,461 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-25 03:04:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:04:52,483 INFO L225 Difference]: With dead ends: 538 [2020-09-25 03:04:52,483 INFO L226 Difference]: Without dead ends: 371 [2020-09-25 03:04:52,489 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 03:04:52,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-09-25 03:04:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 325. [2020-09-25 03:04:52,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2020-09-25 03:04:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 364 transitions. [2020-09-25 03:04:52,606 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 364 transitions. Word has length 160 [2020-09-25 03:04:52,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:04:52,607 INFO L479 AbstractCegarLoop]: Abstraction has 325 states and 364 transitions. [2020-09-25 03:04:52,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 03:04:52,607 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 364 transitions. [2020-09-25 03:04:52,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-09-25 03:04:52,614 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:04:52,614 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:04:52,615 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 03:04:52,615 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:04:52,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:04:52,616 INFO L82 PathProgramCache]: Analyzing trace with hash -476521064, now seen corresponding path program 1 times [2020-09-25 03:04:52,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:04:52,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [319004907] [2020-09-25 03:04:52,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:04:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:52,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:52,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:52,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:54,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:57,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:57,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-09-25 03:04:57,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 03:04:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 03:04:57,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 03:04:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 03:04:57,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-09-25 03:04:57,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,123 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:04:58,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:04:58,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 03:04:58,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 03:04:58,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:04:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:58,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:58,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:58,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:04:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:58,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:58,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:04:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:58,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 03:04:58,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:04:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:04:58,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:58,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 03:04:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:04:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:58,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:04:58,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 03:04:58,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 03:04:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 03:04:58,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 03:04:58,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 03:04:58,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 03:04:58,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 03:04:58,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:58,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 03:04:58,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 03:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 03:04:58,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 03:04:58,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:58,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:58,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:58,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:58,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-25 03:04:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 03:04:58,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 03:04:58,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 03:04:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 03:04:58,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:04:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:58,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:04:58,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:04:58,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 03:04:58,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:58,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 03:04:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:04:58,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:58,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:04:58,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:58,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:04:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:58,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:58,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:58,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:58,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:58,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:58,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:58,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:04:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:58,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:58,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:04:58,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:04:58,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 03:04:58,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 03:04:58,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:04:58,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:58,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:04:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:58,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:59,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:59,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:04:59,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:59,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 03:04:59,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:04:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 03:04:59,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 03:04:59,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:59,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:04:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:59,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:59,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:59,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:04:59,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 03:04:59,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 03:04:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:04:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 03:04:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:59,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:04:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:59,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:59,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:59,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:04:59,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:59,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:04:59,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:59,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:04:59,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:59,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:04:59,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 03:04:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:59,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:59,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:59,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:59,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:59,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:59,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:04:59,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:59,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:59,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-25 03:04:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:04:59,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:04:59,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:04:59,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:04:59,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:04:59,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:04:59,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:04:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:04:59,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:04:59,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:04:59,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:04:59,250 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 03:04:59,250 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [319004907] [2020-09-25 03:04:59,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 03:04:59,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 03:04:59,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465156562] [2020-09-25 03:04:59,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 03:04:59,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:04:59,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 03:04:59,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2020-09-25 03:04:59,254 INFO L87 Difference]: Start difference. First operand 325 states and 364 transitions. Second operand 18 states. [2020-09-25 03:04:59,746 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:01,178 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-25 03:05:01,937 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:02,355 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:02,775 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:03,158 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:03,571 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:03,931 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:04,227 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:04,597 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:04,976 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:05,333 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:06,015 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:05:06,666 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 03:05:07,326 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:05:08,043 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-25 03:05:08,705 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-25 03:05:10,710 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:11,032 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:11,377 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:11,691 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:11,997 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:12,305 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:12,615 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 03:05:12,950 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:13,299 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:13,631 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:15,393 INFO L93 Difference]: Finished difference Result 1240 states and 1799 transitions. [2020-09-25 03:05:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-09-25 03:05:15,394 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 230 [2020-09-25 03:05:15,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:15,410 INFO L225 Difference]: With dead ends: 1240 [2020-09-25 03:05:15,411 INFO L226 Difference]: Without dead ends: 1030 [2020-09-25 03:05:15,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=685, Invalid=3347, Unknown=0, NotChecked=0, Total=4032 [2020-09-25 03:05:15,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2020-09-25 03:05:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 740. [2020-09-25 03:05:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-09-25 03:05:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 893 transitions. [2020-09-25 03:05:15,581 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 893 transitions. Word has length 230 [2020-09-25 03:05:15,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:15,582 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 893 transitions. [2020-09-25 03:05:15,583 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 03:05:15,583 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 893 transitions. [2020-09-25 03:05:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 03:05:15,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:15,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 03:05:15,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 03:05:15,588 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:15,588 INFO L82 PathProgramCache]: Analyzing trace with hash -456832440, now seen corresponding path program 1 times [2020-09-25 03:05:15,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:15,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677125464] [2020-09-25 03:05:15,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:15,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:15,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:17,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:17,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 03:05:17,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 03:05:17,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2223 [2020-09-25 03:05:17,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:05:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-09-25 03:05:17,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:17,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,254 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 03:05:18,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 03:05:18,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 03:05:18,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 03:05:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:18,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:18,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 03:05:18,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:18,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:18,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 03:05:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:18,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 03:05:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 03:05:18,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:18,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 03:05:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:18,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:18,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 03:05:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 03:05:18,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:18,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 03:05:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:18,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:05:18,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 03:05:18,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 03:05:18,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 03:05:18,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 03:05:18,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 03:05:18,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 03:05:18,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 03:05:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 03:05:18,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-25 03:05:18,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 03:05:18,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 03:05:18,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 03:05:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 03:05:18,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 03:05:18,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 03:05:18,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 03:05:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 03:05:18,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 03:05:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 03:05:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 03:05:18,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-25 03:05:18,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:18,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:18,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:18,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 03:05:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:18,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:18,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 03:05:18,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 03:05:18,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 03:05:18,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 03:05:18,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 03:05:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 03:05:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 03:05:18,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 03:05:18,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 03:05:18,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 03:05:18,937 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677125464] [2020-09-25 03:05:18,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 03:05:18,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 03:05:18,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59073653] [2020-09-25 03:05:18,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 03:05:18,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 03:05:18,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 03:05:18,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 03:05:18,941 INFO L87 Difference]: Start difference. First operand 740 states and 893 transitions. Second operand 10 states. [2020-09-25 03:05:20,618 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 03:05:20,939 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 03:05:21,178 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 03:05:21,433 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 03:05:21,707 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 03:05:21,949 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 03:05:22,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 03:05:22,648 INFO L93 Difference]: Finished difference Result 1502 states and 1942 transitions. [2020-09-25 03:05:22,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 03:05:22,649 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-09-25 03:05:22,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 03:05:22,657 INFO L225 Difference]: With dead ends: 1502 [2020-09-25 03:05:22,657 INFO L226 Difference]: Without dead ends: 860 [2020-09-25 03:05:22,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 03:05:22,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2020-09-25 03:05:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 737. [2020-09-25 03:05:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-09-25 03:05:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 875 transitions. [2020-09-25 03:05:22,764 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 875 transitions. Word has length 194 [2020-09-25 03:05:22,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 03:05:22,773 INFO L479 AbstractCegarLoop]: Abstraction has 737 states and 875 transitions. [2020-09-25 03:05:22,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 03:05:22,773 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 875 transitions. [2020-09-25 03:05:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-09-25 03:05:22,778 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 03:05:22,778 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:05:22,778 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 03:05:22,779 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 03:05:22,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 03:05:22,779 INFO L82 PathProgramCache]: Analyzing trace with hash -851770537, now seen corresponding path program 1 times [2020-09-25 03:05:22,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 03:05:22,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903761016] [2020-09-25 03:05:22,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 03:05:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 03:05:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:23,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:23,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:23,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:24,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 03:05:25,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking...