/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:53:37,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:53:37,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:53:37,473 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:53:37,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:53:37,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:53:37,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:53:37,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:53:37,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:53:37,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:53:37,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:53:37,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:53:37,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:53:37,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:53:37,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:53:37,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:53:37,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:53:37,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:53:37,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:53:37,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:53:37,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:53:37,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:53:37,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:53:37,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:53:37,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:53:37,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:53:37,538 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:53:37,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:53:37,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:53:37,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:53:37,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:53:37,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:53:37,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:53:37,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:53:37,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:53:37,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:53:37,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:53:37,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:53:37,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:53:37,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:53:37,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:53:37,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 02:53:37,603 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:53:37,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:53:37,606 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:53:37,606 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:53:37,606 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:53:37,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:53:37,607 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 02:53:37,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:53:37,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 02:53:37,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:53:37,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:53:37,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:53:37,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:53:37,609 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 02:53:37,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:53:37,610 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:53:37,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:53:37,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:53:37,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:53:37,611 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:53:37,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:53:37,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:37,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:53:37,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:53:37,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:53:37,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:53:37,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:53:37,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:53:37,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:53:37,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDEST;log-additional-information=true; [2020-09-25 02:53:38,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:53:38,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:53:38,060 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:53:38,063 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:53:38,063 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:53:38,064 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-25 02:53:38,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0543ebb49/5c89adc2b1954c4081d7cdd5f17c58c6/FLAG46c707bd5 [2020-09-25 02:53:38,751 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:53:38,752 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product42.cil.c [2020-09-25 02:53:38,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0543ebb49/5c89adc2b1954c4081d7cdd5f17c58c6/FLAG46c707bd5 [2020-09-25 02:53:39,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0543ebb49/5c89adc2b1954c4081d7cdd5f17c58c6 [2020-09-25 02:53:39,041 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:53:39,048 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:53:39,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:39,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:53:39,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:53:39,059 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8aa329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39, skipping insertion in model container [2020-09-25 02:53:39,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:53:39,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:53:39,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:39,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:53:39,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:53:39,859 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:53:39,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39 WrapperNode [2020-09-25 02:53:39,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:53:39,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:53:39,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:53:39,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:53:39,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... [2020-09-25 02:53:39,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:53:39,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:53:39,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:53:39,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:53:39,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:53:40,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:53:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:53:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:40,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 02:53:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 02:53:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 02:53:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 02:53:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 02:53:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 02:53:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 02:53:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 02:53:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 02:53:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 02:53:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 02:53:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 02:53:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 02:53:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 02:53:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:53:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 02:53:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 02:53:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 02:53:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 02:53:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 02:53:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 02:53:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:53:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:53:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 02:53:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:53:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:53:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:53:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:53:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 02:53:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:53:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 02:53:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 02:53:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 02:53:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 02:53:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 02:53:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 02:53:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 02:53:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 02:53:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 02:53:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 02:53:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 02:53:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 02:53:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 02:53:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 02:53:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 02:53:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 02:53:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 02:53:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 02:53:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 02:53:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 02:53:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 02:53:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 02:53:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:53:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:53:41,354 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:53:41,358 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 02:53:41,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:41 BoogieIcfgContainer [2020-09-25 02:53:41,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:53:41,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:53:41,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:53:41,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:53:41,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:53:39" (1/3) ... [2020-09-25 02:53:41,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729725d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:41, skipping insertion in model container [2020-09-25 02:53:41,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:53:39" (2/3) ... [2020-09-25 02:53:41,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729725d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:53:41, skipping insertion in model container [2020-09-25 02:53:41,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:53:41" (3/3) ... [2020-09-25 02:53:41,380 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2020-09-25 02:53:41,389 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:53:41,400 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:53:41,420 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:53:41,449 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:53:41,449 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:53:41,449 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:53:41,449 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:53:41,449 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:53:41,450 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:53:41,450 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:53:41,450 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:53:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-25 02:53:41,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 02:53:41,503 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:41,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:41,505 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:41,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash -2111431698, now seen corresponding path program 1 times [2020-09-25 02:53:41,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:41,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [740177073] [2020-09-25 02:53:41,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:41,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:42,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:43,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:46,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:46,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 02:53:46,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:53:46,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 02:53:46,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:46,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 02:53:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 02:53:46,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 02:53:46,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:53:47,315 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:47,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:47,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-09-25 02:53:47,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 02:53:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:47,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:47,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:47,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:47,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:47,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:47,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:47,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:47,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:47,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:47,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:47,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:47,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:47,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:53:47,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:47,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:47,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:47,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:47,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:53:47,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:47,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 02:53:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:47,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:53:47,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 02:53:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:47,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:47,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:47,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:47,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:47,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:53:47,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:53:47,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:53:47,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:53:47,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:47,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [740177073] [2020-09-25 02:53:47,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:47,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 02:53:47,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672354310] [2020-09-25 02:53:47,882 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 02:53:47,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:47,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 02:53:47,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 02:53:47,905 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 8 states. [2020-09-25 02:53:48,453 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:49,436 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:49,820 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:50,194 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:50,579 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:53:50,936 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:51,653 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:53:51,957 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:53:52,446 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:53:53,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:53:53,679 INFO L93 Difference]: Finished difference Result 622 states and 755 transitions. [2020-09-25 02:53:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 02:53:53,682 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 142 [2020-09-25 02:53:53,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:53:53,722 INFO L225 Difference]: With dead ends: 622 [2020-09-25 02:53:53,722 INFO L226 Difference]: Without dead ends: 417 [2020-09-25 02:53:53,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2020-09-25 02:53:53,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-09-25 02:53:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 361. [2020-09-25 02:53:53,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 361 states. [2020-09-25 02:53:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 397 transitions. [2020-09-25 02:53:53,943 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 397 transitions. Word has length 142 [2020-09-25 02:53:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:53:53,945 INFO L479 AbstractCegarLoop]: Abstraction has 361 states and 397 transitions. [2020-09-25 02:53:53,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 02:53:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 397 transitions. [2020-09-25 02:53:53,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 02:53:53,961 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:53:53,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:53:53,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:53:53,962 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:53:53,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:53:53,962 INFO L82 PathProgramCache]: Analyzing trace with hash -240911831, now seen corresponding path program 1 times [2020-09-25 02:53:53,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:53:53,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155502872] [2020-09-25 02:53:53,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:53:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:54,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:54,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:54,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:58,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 02:53:58,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:53:58,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4392 [2020-09-25 02:53:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 02:53:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 02:53:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-25 02:53:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:58,919 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:53:58,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:53:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:58,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:53:59,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 236 [2020-09-25 02:53:59,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 02:53:59,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:53:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:59,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:59,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:59,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:53:59,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:59,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:59,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:59,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:53:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:59,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 02:53:59,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:59,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:53:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:53:59,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:59,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:53:59,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:53:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:53:59,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 02:53:59,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:53:59,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:53:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:53:59,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:53:59,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:53:59,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 02:53:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:59,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:53:59,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:53:59,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:59,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 02:53:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:53:59,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:53:59,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:53:59,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:53:59,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:53:59,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:53:59,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:53:59,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:53:59,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:53:59,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:53:59,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:53:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:53:59,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155502872] [2020-09-25 02:53:59,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:53:59,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 02:53:59,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251296332] [2020-09-25 02:53:59,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 02:53:59,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:53:59,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 02:53:59,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 02:53:59,429 INFO L87 Difference]: Start difference. First operand 361 states and 397 transitions. Second operand 10 states. [2020-09-25 02:53:59,992 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:01,372 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:01,725 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:02,084 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:02,438 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:54:02,786 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:04,322 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:04,660 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:05,013 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:05,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:05,597 INFO L93 Difference]: Finished difference Result 1002 states and 1254 transitions. [2020-09-25 02:54:05,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 02:54:05,598 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 161 [2020-09-25 02:54:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:05,610 INFO L225 Difference]: With dead ends: 1002 [2020-09-25 02:54:05,610 INFO L226 Difference]: Without dead ends: 751 [2020-09-25 02:54:05,613 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-25 02:54:05,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2020-09-25 02:54:05,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 527. [2020-09-25 02:54:05,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-25 02:54:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 607 transitions. [2020-09-25 02:54:05,702 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 607 transitions. Word has length 161 [2020-09-25 02:54:05,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:05,703 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 607 transitions. [2020-09-25 02:54:05,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 02:54:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 607 transitions. [2020-09-25 02:54:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-25 02:54:05,708 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:05,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:54:05,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:54:05,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:05,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:05,710 INFO L82 PathProgramCache]: Analyzing trace with hash 984486308, now seen corresponding path program 1 times [2020-09-25 02:54:05,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:05,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [548185687] [2020-09-25 02:54:05,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:05,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:05,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:06,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:06,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:06,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:10,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:10,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 296 [2020-09-25 02:54:10,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 02:54:10,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 02:54:10,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 02:54:10,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 02:54:10,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,056 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:11,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:11,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 02:54:11,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:11,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:11,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:11,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:11,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:11,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:11,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:11,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:11,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:11,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:11,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:54:11,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:11,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:11,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:11,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 02:54:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 02:54:11,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:11,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:11,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:54:11,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:11,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 02:54:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:54:11,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:11,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:54:11,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 02:54:11,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:11,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:11,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 02:54:11,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 02:54:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 02:54:11,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 02:54:11,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:11,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 02:54:11,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 02:54:11,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:54:11,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 02:54:11,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 02:54:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:11,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:54:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:54:11,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:11,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:54:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:11,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:11,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:54:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:11,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:11,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:11,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:11,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-25 02:54:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:11,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:11,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-25 02:54:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:11,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:11,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:11,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:11,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:11,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:11,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:11,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:11,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-25 02:54:11,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [548185687] [2020-09-25 02:54:11,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:54:11,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-25 02:54:11,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435175213] [2020-09-25 02:54:11,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 02:54:11,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:11,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 02:54:11,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 02:54:11,735 INFO L87 Difference]: Start difference. First operand 527 states and 607 transitions. Second operand 12 states. [2020-09-25 02:54:12,581 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:13,791 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:54:14,026 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:54:14,315 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:14,658 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:54:14,954 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:16,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:54:16,938 INFO L93 Difference]: Finished difference Result 1398 states and 1842 transitions. [2020-09-25 02:54:16,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 02:54:16,939 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 241 [2020-09-25 02:54:16,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:54:16,952 INFO L225 Difference]: With dead ends: 1398 [2020-09-25 02:54:16,952 INFO L226 Difference]: Without dead ends: 981 [2020-09-25 02:54:16,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 02:54:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2020-09-25 02:54:17,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 519. [2020-09-25 02:54:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-09-25 02:54:17,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 585 transitions. [2020-09-25 02:54:17,086 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 585 transitions. Word has length 241 [2020-09-25 02:54:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:54:17,087 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 585 transitions. [2020-09-25 02:54:17,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 02:54:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 585 transitions. [2020-09-25 02:54:17,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-09-25 02:54:17,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:54:17,092 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] [2020-09-25 02:54:17,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:54:17,092 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:54:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:54:17,093 INFO L82 PathProgramCache]: Analyzing trace with hash 280021704, now seen corresponding path program 1 times [2020-09-25 02:54:17,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:54:17,094 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729535370] [2020-09-25 02:54:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:54:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:17,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:17,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:21,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-09-25 02:54:22,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 02:54:22,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 02:54:22,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:54:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-09-25 02:54:22,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 02:54:22,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,474 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 02:54:22,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:54:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 02:54:22,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 02:54:22,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:22,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 02:54:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:22,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:22,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:22,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:22,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 02:54:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:22,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:22,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 02:54:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:22,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:22,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 02:54:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:54:22,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 02:54:22,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:22,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 02:54:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:54:22,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:22,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:54:22,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 02:54:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:22,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:22,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:22,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:22,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:22,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:22,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:22,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 02:54:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:22,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 02:54:23,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:54:23,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 02:54:23,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:54:23,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-25 02:54:23,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-09-25 02:54:23,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:23,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 02:54:23,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 02:54:23,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 02:54:23,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:23,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 02:54:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:54:23,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:23,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:23,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:23,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 02:54:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 02:54:23,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-25 02:54:23,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 02:54:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 02:54:23,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:23,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:54:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:54:23,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 02:54:23,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 02:54:23,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:54:23,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:54:23,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:54:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:23,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 02:54:23,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 02:54:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:54:23,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:23,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 02:54:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:54:23,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 02:54:23,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:54:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:54:23,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 02:54:23,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:23,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 02:54:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:23,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:23,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:23,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:23,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:23,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:23,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 02:54:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:54:23,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:54:23,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:54:23,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:54:23,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:54:23,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 02:54:23,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDEST [2020-09-25 02:54:23,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:54:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 02:54:23,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:54:23,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:54:23,527 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 02:54:23,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729535370] [2020-09-25 02:54:23,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:54:23,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 02:54:23,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959192213] [2020-09-25 02:54:23,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 02:54:23,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:54:23,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 02:54:23,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-09-25 02:54:23,530 INFO L87 Difference]: Start difference. First operand 519 states and 585 transitions. Second operand 15 states. [2020-09-25 02:54:24,104 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:25,219 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 02:54:25,837 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:26,173 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:54:26,614 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 02:54:26,965 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190