/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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 07:39:24,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:39:24,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:39:24,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:39:24,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:39:24,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:39:24,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:39:24,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:39:24,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:39:24,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:39:24,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:39:24,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:39:24,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:39:24,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:39:24,502 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:39:24,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:39:24,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:39:24,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:39:24,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:39:24,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:39:24,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:39:24,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:39:24,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:39:24,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:39:24,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:39:24,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:39:24,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:39:24,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:39:24,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:39:24,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:39:24,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:39:24,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:39:24,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:39:24,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:39:24,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:39:24,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:39:24,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:39:24,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:39:24,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:39:24,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:39:24,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:39:24,546 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 07:39:24,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:39:24,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:39:24,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:39:24,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:39:24,600 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:39:24,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:39:24,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:39:24,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:39:24,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:39:24,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:39:24,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:39:24,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:39:24,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:39:24,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:39:24,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:39:24,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:39:24,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:39:24,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:39:24,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:39:24,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:39:24,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:39:24,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:24,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:39:24,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:39:24,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:39:24,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:39:24,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:39:24,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:39:24,607 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:39:24,607 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:39:25,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:39:25,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:39:25,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:39:25,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:39:25,078 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:39:25,080 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 07:39:25,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/388a6a843/9f6efdf6a0134cb6b845eaeb6dfe02e1/FLAGb3687dae2 [2020-09-25 07:39:25,780 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:39:25,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2020-09-25 07:39:25,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/388a6a843/9f6efdf6a0134cb6b845eaeb6dfe02e1/FLAGb3687dae2 [2020-09-25 07:39:26,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/388a6a843/9f6efdf6a0134cb6b845eaeb6dfe02e1 [2020-09-25 07:39:26,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:39:26,087 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:39:26,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:26,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:39:26,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:39:26,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6665a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26, skipping insertion in model container [2020-09-25 07:39:26,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:39:26,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:39:26,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:26,710 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:39:26,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:39:26,860 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:39:26,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26 WrapperNode [2020-09-25 07:39:26,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:39:26,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:39:26,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:39:26,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:39:26,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... [2020-09-25 07:39:26,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:39:26,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:39:26,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:39:26,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:39:26,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:39:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:39:27,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:39:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:27,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:39:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:39:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:39:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:39:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:39:27,068 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:39:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:39:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:39:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:39:27,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:39:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:39:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:39:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 07:39:27,070 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:39:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:39:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:39:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:39:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:39:27,071 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:39:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:39:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:39:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:39:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:39:27,072 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:39:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:39:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:39:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:39:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:39:27,073 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:39:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 07:39:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:27,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:39:27,075 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:39:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:39:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:39:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:39:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:39:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:39:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:39:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 07:39:27,079 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:39:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:39:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:39:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:39:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 07:39:27,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:39:27,081 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:39:27,082 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:39:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:39:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:39:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:39:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:39:27,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:39:28,490 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:39:28,491 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:39:28,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:28 BoogieIcfgContainer [2020-09-25 07:39:28,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:39:28,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:39:28,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:39:28,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:39:28,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:39:26" (1/3) ... [2020-09-25 07:39:28,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f5442f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:28, skipping insertion in model container [2020-09-25 07:39:28,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:39:26" (2/3) ... [2020-09-25 07:39:28,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f5442f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:39:28, skipping insertion in model container [2020-09-25 07:39:28,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:39:28" (3/3) ... [2020-09-25 07:39:28,518 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2020-09-25 07:39:28,532 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:39:28,545 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:39:28,566 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:39:28,600 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:39:28,600 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:39:28,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:39:28,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:39:28,601 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:39:28,601 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:39:28,601 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:39:28,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:39:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 07:39:28,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 07:39:28,650 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:28,651 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 07:39:28,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:28,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1855283270, now seen corresponding path program 1 times [2020-09-25 07:39:28,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:28,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972028650] [2020-09-25 07:39:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:29,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:29,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:29,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:29,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:30,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:31,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 07:39:34,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:34,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5044 [2020-09-25 07:39:34,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:39:34,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 07:39:34,541 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:34,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:34,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 07:39:34,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:34,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:34,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:34,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:34,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:34,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:34,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 07:39:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:34,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:34,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:34,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-09-25 07:39:34,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:34,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:34,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 07:39:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:34,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:34,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 07:39:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:34,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:34,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:34,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:34,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:34,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:34,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:34,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:34,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:34,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:34,914 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 07:39:34,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972028650] [2020-09-25 07:39:34,917 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:34,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:39:34,918 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207952139] [2020-09-25 07:39:34,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:39:34,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:34,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:39:34,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:34,947 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 4 states. [2020-09-25 07:39:36,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:36,127 INFO L93 Difference]: Finished difference Result 437 states and 514 transitions. [2020-09-25 07:39:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:39:36,129 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 07:39:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:36,150 INFO L225 Difference]: With dead ends: 437 [2020-09-25 07:39:36,150 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:39:36,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:39:36,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:39:36,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 07:39:36,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 07:39:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2020-09-25 07:39:36,268 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 160 [2020-09-25 07:39:36,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:36,271 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2020-09-25 07:39:36,272 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:39:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2020-09-25 07:39:36,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 07:39:36,284 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:36,285 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:36,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:39:36,286 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:36,286 INFO L82 PathProgramCache]: Analyzing trace with hash 494679854, now seen corresponding path program 1 times [2020-09-25 07:39:36,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:36,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [708438021] [2020-09-25 07:39:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:36,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:37,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:39,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:41,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:41,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 07:39:41,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 07:39:41,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:41,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 07:39:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 07:39:41,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:41,935 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:41,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:42,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 07:39:42,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 07:39:42,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:42,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:42,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:42,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:42,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:42,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:42,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:42,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:42,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 07:39:42,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:42,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:42,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:42,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:42,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:42,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:42,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:39:42,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:42,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:39:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 07:39:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:42,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:42,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:42,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:42,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:39:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:42,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:42,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:42,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:42,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 07:39:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:42,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:42,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:42,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:42,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:42,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:42,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:42,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:42,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:42,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:42,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:42,459 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 07:39:42,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [708438021] [2020-09-25 07:39:42,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:42,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:39:42,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114624422] [2020-09-25 07:39:42,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:39:42,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:42,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:39:42,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:39:42,465 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand 5 states. [2020-09-25 07:39:42,965 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:43,707 INFO L93 Difference]: Finished difference Result 407 states and 466 transitions. [2020-09-25 07:39:43,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:39:43,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 07:39:43,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:43,712 INFO L225 Difference]: With dead ends: 407 [2020-09-25 07:39:43,712 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 07:39:43,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:39:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 07:39:43,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-25 07:39:43,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-25 07:39:43,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-25 07:39:43,769 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 161 [2020-09-25 07:39:43,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:43,771 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-25 07:39:43,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:39:43,772 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-25 07:39:43,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 07:39:43,774 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:43,774 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] [2020-09-25 07:39:43,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:39:43,775 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:43,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:43,775 INFO L82 PathProgramCache]: Analyzing trace with hash -229787215, now seen corresponding path program 1 times [2020-09-25 07:39:43,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:43,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027747661] [2020-09-25 07:39:43,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:43,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:44,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:46,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:47,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:48,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:48,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 210 [2020-09-25 07:39:48,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:39:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5054 [2020-09-25 07:39:48,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:48,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:39:48,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:39:48,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,247 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:49,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 07:39:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:49,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:49,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:49,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:49,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:49,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:49,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:49,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:49,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:49,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:49,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 07:39:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:49,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:49,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:39:49,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:49,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:49,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:39:49,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:39:49,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 07:39:49,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 07:39:49,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:39:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:49,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:49,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:49,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 07:39:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:49,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:49,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 07:39:49,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 07:39:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:49,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:49,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:49,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:49,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:49,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:49,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:49,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:49,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:49,639 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 07:39:49,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027747661] [2020-09-25 07:39:49,640 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:49,640 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:39:49,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846686626] [2020-09-25 07:39:49,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:39:49,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:49,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:39:49,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:39:49,645 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 6 states. [2020-09-25 07:39:50,339 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:51,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:51,194 INFO L93 Difference]: Finished difference Result 390 states and 445 transitions. [2020-09-25 07:39:51,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 07:39:51,195 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2020-09-25 07:39:51,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:51,198 INFO L225 Difference]: With dead ends: 390 [2020-09-25 07:39:51,199 INFO L226 Difference]: Without dead ends: 295 [2020-09-25 07:39:51,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:39:51,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-09-25 07:39:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 230. [2020-09-25 07:39:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 07:39:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-25 07:39:51,268 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 169 [2020-09-25 07:39:51,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:51,268 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-25 07:39:51,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:39:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-25 07:39:51,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-25 07:39:51,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:51,271 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] [2020-09-25 07:39:51,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:39:51,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:51,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:51,272 INFO L82 PathProgramCache]: Analyzing trace with hash -442490257, now seen corresponding path program 1 times [2020-09-25 07:39:51,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:51,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934079718] [2020-09-25 07:39:51,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:39:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:51,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:51,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:53,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:54,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-25 07:39:56,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:39:56,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-09-25 07:39:56,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:39:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 07:39:56,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:39:56,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,717 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:39:56,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:39:56,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 07:39:56,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:39:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:56,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:56,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:39:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:56,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:56,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:39:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:56,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:39:56,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:39:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:56,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:39:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:39:56,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:56,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:39:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:39:56,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:56,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:39:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:56,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:56,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:39:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:56,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:56,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 07:39:56,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:56,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:39:56,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:56,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:39:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:39:56,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 07:39:56,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:39:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:39:57,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:39:57,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:39:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:39:57,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:39:57,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:39:57,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 07:39:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:39:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-09-25 07:39:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:39:57,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:39:57,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:39:57,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:39:57,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:39:57,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:39:57,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:39:57,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:39:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:39:57,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:39:57,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:39:57,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:39:57,107 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 07:39:57,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934079718] [2020-09-25 07:39:57,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:39:57,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 07:39:57,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484055174] [2020-09-25 07:39:57,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 07:39:57,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:39:57,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 07:39:57,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:39:57,112 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 7 states. [2020-09-25 07:39:57,836 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:39:59,566 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:39:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:39:59,918 INFO L93 Difference]: Finished difference Result 517 states and 594 transitions. [2020-09-25 07:39:59,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 07:39:59,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-09-25 07:39:59,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:39:59,924 INFO L225 Difference]: With dead ends: 517 [2020-09-25 07:39:59,924 INFO L226 Difference]: Without dead ends: 402 [2020-09-25 07:39:59,925 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-25 07:39:59,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-09-25 07:39:59,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 334. [2020-09-25 07:39:59,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2020-09-25 07:39:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 363 transitions. [2020-09-25 07:39:59,968 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 363 transitions. Word has length 178 [2020-09-25 07:39:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:39:59,968 INFO L479 AbstractCegarLoop]: Abstraction has 334 states and 363 transitions. [2020-09-25 07:39:59,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 07:39:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 363 transitions. [2020-09-25 07:39:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2020-09-25 07:39:59,971 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:39:59,972 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:39:59,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:39:59,972 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:39:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:39:59,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1342619795, now seen corresponding path program 1 times [2020-09-25 07:39:59,973 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:39:59,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714665857] [2020-09-25 07:39:59,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:00,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:00,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:02,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:02,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:02,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-09-25 07:40:05,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:40:05,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:40:05,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:40:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 07:40:05,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 07:40:05,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,366 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:05,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:05,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 07:40:05,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:05,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:05,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:05,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:05,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:40:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:05,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:05,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:05,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:05,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:05,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:05,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:05,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:05,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:05,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:05,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:40:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:05,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:05,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:40:06,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:40:06,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 693 [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:40:06,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:06,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:06,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:06,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:40:06,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 07:40:06,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:06,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:40:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:06,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:40:06,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:06,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:40:06,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:06,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:06,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:40:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:06,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:06,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:06,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:40:06,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:06,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-25 07:40:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:06,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:06,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:06,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:06,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:40:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:06,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 07:40:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:06,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:06,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:06,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:06,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:06,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 07:40:06,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:06,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:06,443 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 07:40:06,444 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714665857] [2020-09-25 07:40:06,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:06,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 07:40:06,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590419430] [2020-09-25 07:40:06,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 07:40:06,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:06,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 07:40:06,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 07:40:06,446 INFO L87 Difference]: Start difference. First operand 334 states and 363 transitions. Second operand 10 states. [2020-09-25 07:40:07,077 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:08,077 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:08,396 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:40:09,386 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:40:09,740 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:10,106 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:40:10,641 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:10,971 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:40:11,296 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:40:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:40:11,595 INFO L93 Difference]: Finished difference Result 620 states and 707 transitions. [2020-09-25 07:40:11,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:40:11,596 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 202 [2020-09-25 07:40:11,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:40:11,601 INFO L225 Difference]: With dead ends: 620 [2020-09-25 07:40:11,601 INFO L226 Difference]: Without dead ends: 401 [2020-09-25 07:40:11,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 07:40:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-09-25 07:40:11,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 333. [2020-09-25 07:40:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-25 07:40:11,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 360 transitions. [2020-09-25 07:40:11,641 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 360 transitions. Word has length 202 [2020-09-25 07:40:11,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:40:11,642 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 360 transitions. [2020-09-25 07:40:11,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 07:40:11,642 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 360 transitions. [2020-09-25 07:40:11,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-09-25 07:40:11,645 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:40:11,645 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:40:11,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:40:11,646 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:40:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:40:11,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1456714666, now seen corresponding path program 1 times [2020-09-25 07:40:11,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:40:11,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2143329873] [2020-09-25 07:40:11,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:40:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:11,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 246 [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 07:40:12,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:40:12,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,604 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:40:12,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:40:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:40:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:40:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:40:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:40:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:40:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 07:40:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:40:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:40:12,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 07:40:12,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:40:12,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 07:40:12,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:40:12,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:40:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 07:40:12,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:40:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 07:40:12,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:40:12,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:40:12,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:40:12,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:40:12,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 07:40:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 07:40:12,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-09-25 07:40:12,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-25 07:40:12,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:40:12,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:40:12,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:40:12,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:40:12,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:40:12,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:40:12,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:40:12,956 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 07:40:12,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2143329873] [2020-09-25 07:40:12,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:40:12,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 07:40:12,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740924091] [2020-09-25 07:40:12,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 07:40:12,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:40:12,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 07:40:12,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 07:40:12,958 INFO L87 Difference]: Start difference. First operand 333 states and 360 transitions. Second operand 9 states.