/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:28:29,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:28:29,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:28:29,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:28:29,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:28:29,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:28:29,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:28:29,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:28:29,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:28:29,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:28:29,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:28:29,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:28:29,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:28:29,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:28:29,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:28:29,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:28:29,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:28:29,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:28:29,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:28:29,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:28:29,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:28:29,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:28:29,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:28:29,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:28:29,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:28:29,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:28:29,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:28:29,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:28:29,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:28:29,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:28:29,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:28:29,996 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:28:29,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:28:30,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:28:30,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:28:30,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:28:30,003 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:28:30,003 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:28:30,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:28:30,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:28:30,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:28:30,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:28:30,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:28:30,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:28:30,067 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:28:30,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:28:30,067 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:28:30,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:28:30,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:28:30,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:28:30,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:28:30,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:28:30,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:28:30,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:28:30,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:28:30,071 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:28:30,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:28:30,072 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:28:30,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:28:30,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:28:30,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:28:30,073 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:28:30,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:28:30,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:30,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:28:30,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:28:30,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:28:30,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:28:30,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:28:30,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:28:30,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:28:30,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:28:30,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:28:30,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:28:30,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:28:30,606 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:28:30,607 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:28:30,608 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-09-24 21:28:30,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e5958ffe/7deb29b5b93241a6a0762cf92dea534f/FLAG4e6ec3731 [2020-09-24 21:28:31,343 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:28:31,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2020-09-24 21:28:31,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e5958ffe/7deb29b5b93241a6a0762cf92dea534f/FLAG4e6ec3731 [2020-09-24 21:28:31,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e5958ffe/7deb29b5b93241a6a0762cf92dea534f [2020-09-24 21:28:31,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:28:31,607 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:28:31,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:31,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:28:31,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:28:31,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:31" (1/1) ... [2020-09-24 21:28:31,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31ed4b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:31, skipping insertion in model container [2020-09-24 21:28:31,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:28:31" (1/1) ... [2020-09-24 21:28:31,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:28:31,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:28:32,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:32,187 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:28:32,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:28:32,324 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:28:32,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32 WrapperNode [2020-09-24 21:28:32,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:28:32,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:28:32,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:28:32,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:28:32,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... [2020-09-24 21:28:32,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:28:32,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:28:32,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:28:32,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:28:32,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:28:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:28:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:28:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 21:28:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:28:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:28:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:28:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:28:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:28:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:28:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:28:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:28:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:28:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:28:32,507 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:28:32,508 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:28:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:28:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:28:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:28:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:32,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:28:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:28:32,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:28:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:28:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:28:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 21:28:32,511 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:28:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:28:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:28:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:28:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:28:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:28:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:28:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:28:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:28:33,766 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:28:33,767 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:28:33,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:33 BoogieIcfgContainer [2020-09-24 21:28:33,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:28:33,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:28:33,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:28:33,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:28:33,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:28:31" (1/3) ... [2020-09-24 21:28:33,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1f10ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:33, skipping insertion in model container [2020-09-24 21:28:33,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:28:32" (2/3) ... [2020-09-24 21:28:33,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1f10ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:28:33, skipping insertion in model container [2020-09-24 21:28:33,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:28:33" (3/3) ... [2020-09-24 21:28:33,793 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2020-09-24 21:28:33,806 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:28:33,820 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:28:33,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:28:33,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:28:33,888 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:28:33,888 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:28:33,888 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:28:33,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:28:33,889 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:28:33,889 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:28:33,889 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:28:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states. [2020-09-24 21:28:33,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 21:28:33,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:33,942 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:33,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:33,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:33,952 INFO L82 PathProgramCache]: Analyzing trace with hash -492062203, now seen corresponding path program 1 times [2020-09-24 21:28:33,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:33,964 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [383387395] [2020-09-24 21:28:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:34,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:34,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:36,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:36,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:39,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:39,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 21:28:39,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:28:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 21:28:39,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:39,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 21:28:39,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 21:28:39,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 21:28:39,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 21:28:39,955 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:39,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:40,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 310 [2020-09-24 21:28:40,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 21:28:40,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:40,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:28:40,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:40,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:40,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:40,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:40,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:40,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-24 21:28:40,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:40,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:40,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:40,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:28:40,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:28:40,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:40,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:40,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:28:40,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:40,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 21:28:40,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:40,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:28:40,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:28:40,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:40,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:40,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:40,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:40,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:40,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:28:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:40,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:40,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:40,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:28:40,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 21:28:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:40,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:40,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:40,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:40,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:40,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-24 21:28:40,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:40,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:40,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:40,674 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 21:28:40,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [383387395] [2020-09-24 21:28:40,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:40,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 21:28:40,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988397435] [2020-09-24 21:28:40,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 21:28:40,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:40,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 21:28:40,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 21:28:40,714 INFO L87 Difference]: Start difference. First operand 354 states. Second operand 9 states. [2020-09-24 21:28:41,472 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:42,246 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:42,552 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:43,955 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:28:44,244 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:44,595 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:45,011 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:45,326 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:28:45,620 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:46,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:46,803 INFO L93 Difference]: Finished difference Result 686 states and 826 transitions. [2020-09-24 21:28:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:28:46,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 21:28:46,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:46,841 INFO L225 Difference]: With dead ends: 686 [2020-09-24 21:28:46,841 INFO L226 Difference]: Without dead ends: 456 [2020-09-24 21:28:46,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:28:46,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-09-24 21:28:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 408. [2020-09-24 21:28:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 21:28:46,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 457 transitions. [2020-09-24 21:28:46,997 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 457 transitions. Word has length 160 [2020-09-24 21:28:46,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:46,998 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 457 transitions. [2020-09-24 21:28:46,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 21:28:46,998 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 457 transitions. [2020-09-24 21:28:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 21:28:47,005 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:47,005 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:47,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:28:47,006 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:47,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:47,007 INFO L82 PathProgramCache]: Analyzing trace with hash -181604155, now seen corresponding path program 1 times [2020-09-24 21:28:47,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:47,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035766540] [2020-09-24 21:28:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:47,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 21:28:48,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1278 [2020-09-24 21:28:48,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 211 [2020-09-24 21:28:48,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:48,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,745 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:48,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:48,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:48,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 21:28:48,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:48,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:48,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:48,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:28:48,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:48,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:48,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:48,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:48,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:48,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:48,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:48,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:48,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:48,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:48,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:48,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:28:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:49,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:49,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:28:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:49,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:49,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:49,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:49,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:49,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:49,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:28:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:28:49,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 21:28:49,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:49,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 21:28:49,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:49,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:49,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:28:49,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-24 21:28:49,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:49,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 21:28:49,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:49,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:49,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:28:49,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-24 21:28:49,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:28:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 21:28:49,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:28:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:49,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:28:49,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 21:28:49,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:49,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:49,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 21:28:49,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:28:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:28:49,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:28:49,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:49,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:28:49,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:28:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:28:49,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:28:49,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 21:28:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:49,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:49,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:49,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 21:28:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:49,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:49,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:49,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:49,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:49,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:49,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:49,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:49,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:28:49,667 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035766540] [2020-09-24 21:28:49,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:49,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:28:49,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090055564] [2020-09-24 21:28:49,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:28:49,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:49,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:28:49,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:28:49,674 INFO L87 Difference]: Start difference. First operand 408 states and 457 transitions. Second operand 11 states. [2020-09-24 21:28:51,373 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:28:51,696 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:28:52,049 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-24 21:28:52,450 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:52,791 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:28:53,077 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:28:54,715 INFO L93 Difference]: Finished difference Result 864 states and 1062 transitions. [2020-09-24 21:28:54,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:28:54,715 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 217 [2020-09-24 21:28:54,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:28:54,722 INFO L225 Difference]: With dead ends: 864 [2020-09-24 21:28:54,723 INFO L226 Difference]: Without dead ends: 571 [2020-09-24 21:28:54,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 21:28:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2020-09-24 21:28:54,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 422. [2020-09-24 21:28:54,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-24 21:28:54,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 477 transitions. [2020-09-24 21:28:54,802 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 477 transitions. Word has length 217 [2020-09-24 21:28:54,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:28:54,803 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 477 transitions. [2020-09-24 21:28:54,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:28:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 477 transitions. [2020-09-24 21:28:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 21:28:54,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:28:54,807 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:28:54,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:28:54,808 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:28:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:28:54,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1832771574, now seen corresponding path program 1 times [2020-09-24 21:28:54,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:28:54,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838429211] [2020-09-24 21:28:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:28:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:54,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:55,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:56,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:56,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 21:28:56,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:28:56,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1862 [2020-09-24 21:28:56,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:28:56,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-24 21:28:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:28:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,107 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:28:57,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:28:57,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:28:57,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:28:57,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:28:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:28:57,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:28:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:28:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:28:57,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:28:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:57,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:28:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:28:57,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:57,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:28:57,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:28:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:28:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:28:57,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:28:57,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-24 21:28:57,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 21:28:57,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:57,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:28:57,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-24 21:28:57,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 21:28:57,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:57,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:28:57,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 21:28:57,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 21:28:57,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:57,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:28:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:28:57,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 21:28:57,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:28:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 21:28:57,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 21:28:57,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:28:57,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:28:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:28:57,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:28:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:28:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:28:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:28:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:28:57,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:57,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 21:28:57,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 21:28:57,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:28:57,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:28:57,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 21:28:57,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:28:57,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:28:57,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:28:57,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:28:57,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:28:57,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:28:57,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:28:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:28:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:28:57,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:28:57,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:28:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:28:57,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838429211] [2020-09-24 21:28:57,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:28:57,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:28:57,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396107196] [2020-09-24 21:28:57,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:28:57,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:28:57,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:28:57,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:28:57,825 INFO L87 Difference]: Start difference. First operand 422 states and 477 transitions. Second operand 10 states. [2020-09-24 21:28:58,535 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:59,521 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:28:59,917 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:00,245 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:00,585 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:29:00,898 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:02,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:02,109 INFO L93 Difference]: Finished difference Result 785 states and 936 transitions. [2020-09-24 21:29:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 21:29:02,111 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 21:29:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:02,115 INFO L225 Difference]: With dead ends: 785 [2020-09-24 21:29:02,115 INFO L226 Difference]: Without dead ends: 478 [2020-09-24 21:29:02,117 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2020-09-24 21:29:02,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2020-09-24 21:29:02,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 408. [2020-09-24 21:29:02,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 21:29:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 449 transitions. [2020-09-24 21:29:02,169 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 449 transitions. Word has length 204 [2020-09-24 21:29:02,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:02,170 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 449 transitions. [2020-09-24 21:29:02,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:29:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 449 transitions. [2020-09-24 21:29:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-24 21:29:02,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:02,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:02,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:29:02,175 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:02,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1895973026, now seen corresponding path program 1 times [2020-09-24 21:29:02,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:02,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1387346164] [2020-09-24 21:29:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:02,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:03,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:03,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1513 [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:29:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-09-24 21:29:03,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,040 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:04,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-24 21:29:04,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:29:04,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:04,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:04,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:04,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:04,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:04,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:29:04,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:04,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:04,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:04,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:04,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:04,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:04,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 21:29:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:04,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:29:04,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:04,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:29:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:04,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:29:04,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:29:04,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:04,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:04,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:04,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:29:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:29:04,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-24 21:29:04,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 21:29:04,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 21:29:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:29:04,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 21:29:04,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 21:29:04,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:29:04,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 21:29:04,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:29:04,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:04,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:29:04,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:04,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:04,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:04,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:29:04,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:04,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-24 21:29:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:04,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:04,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:04,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-24 21:29:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:04,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:04,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:04,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:04,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:04,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:04,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:04,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:04,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:04,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:04,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1387346164] [2020-09-24 21:29:04,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:04,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 21:29:04,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315996718] [2020-09-24 21:29:04,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 21:29:04,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:04,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 21:29:04,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 21:29:04,707 INFO L87 Difference]: Start difference. First operand 408 states and 449 transitions. Second operand 8 states. [2020-09-24 21:29:05,273 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:06,751 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:29:10,603 INFO L93 Difference]: Finished difference Result 1422 states and 1812 transitions. [2020-09-24 21:29:10,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-24 21:29:10,603 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 217 [2020-09-24 21:29:10,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:29:10,612 INFO L225 Difference]: With dead ends: 1422 [2020-09-24 21:29:10,613 INFO L226 Difference]: Without dead ends: 1129 [2020-09-24 21:29:10,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=164, Invalid=486, Unknown=0, NotChecked=0, Total=650 [2020-09-24 21:29:10,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2020-09-24 21:29:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 809. [2020-09-24 21:29:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 809 states. [2020-09-24 21:29:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 934 transitions. [2020-09-24 21:29:10,724 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 934 transitions. Word has length 217 [2020-09-24 21:29:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:29:10,725 INFO L479 AbstractCegarLoop]: Abstraction has 809 states and 934 transitions. [2020-09-24 21:29:10,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 21:29:10,725 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 934 transitions. [2020-09-24 21:29:10,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-24 21:29:10,730 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:29:10,731 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:29:10,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 21:29:10,731 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:29:10,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:29:10,731 INFO L82 PathProgramCache]: Analyzing trace with hash -343933007, now seen corresponding path program 1 times [2020-09-24 21:29:10,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:29:10,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293255624] [2020-09-24 21:29:10,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:29:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:10,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:11,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:15,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:15,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-09-24 21:29:15,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:29:15,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 21:29:15,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-24 21:29:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:29:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-09-24 21:29:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:16,356 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:29:16,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:29:16,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-24 21:29:16,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:29:16,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:29:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:16,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:16,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:16,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:29:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:16,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:16,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 21:29:16,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:29:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:16,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:16,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:16,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:29:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:29:16,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:16,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:29:16,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:29:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:16,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:29:16,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:16,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 21:29:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:29:16,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:29:16,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:16,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:29:16,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 21:29:16,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 21:29:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:16,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:29:16,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:29:16,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:16,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 21:29:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 21:29:16,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:29:16,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:29:16,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:16,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:29:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:16,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:16,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:16,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:16,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:16,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:29:16,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:16,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:16,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:16,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:16,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 21:29:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 21:29:17,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-24 21:29:17,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:29:17,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-24 21:29:17,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 21:29:17,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 21:29:17,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:17,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 21:29:17,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-24 21:29:17,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:29:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 21:29:17,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:29:17,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 21:29:17,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 21:29:17,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:29:17,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 21:29:17,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:29:17,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:29:17,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-09-24 21:29:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:17,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:29:17,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:29:17,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:29:17,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:29:17,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:29:17,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-09-24 21:29:17,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:29:17,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:29:17,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:29:17,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:29:17,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:29:17,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:29:17,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:29:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:29:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:29:17,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:29:17,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:29:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 21:29:17,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293255624] [2020-09-24 21:29:17,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:29:17,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 21:29:17,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054298237] [2020-09-24 21:29:17,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 21:29:17,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:29:17,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 21:29:17,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-24 21:29:17,352 INFO L87 Difference]: Start difference. First operand 809 states and 934 transitions. Second operand 15 states. [2020-09-24 21:29:17,892 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:29:18,808 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:29:19,826 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:29:20,176 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 193