/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:48:11,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:48:11,842 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:48:11,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:48:11,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:48:11,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:48:11,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:48:11,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:48:11,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:48:11,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:48:11,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:48:11,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:48:11,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:48:11,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:48:11,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:48:11,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:48:11,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:48:11,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:48:11,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:48:11,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:48:11,931 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:48:11,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:48:11,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:48:11,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:48:11,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:48:11,945 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:48:11,945 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:48:11,946 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:48:11,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:48:11,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:48:11,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:48:11,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:48:11,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:48:11,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:48:11,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:48:11,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:48:11,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:48:11,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:48:11,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:48:11,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:48:11,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:48:11,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:48:12,010 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:48:12,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:48:12,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:48:12,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:48:12,013 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:48:12,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:48:12,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:48:12,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:48:12,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:48:12,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:48:12,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:48:12,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:48:12,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:48:12,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:48:12,019 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:48:12,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:48:12,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:12,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:48:12,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:48:12,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:48:12,020 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:48:12,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:48:12,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:48:12,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:48:12,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:48:12,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:48:12,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:48:12,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:48:12,523 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:48:12,523 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:48:12,524 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 01:48:12,597 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9341c974e/10ba95feb36c4f38972064b36ab1340f/FLAG30bf684a9 [2020-09-25 01:48:13,234 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:48:13,235 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product45.cil.c [2020-09-25 01:48:13,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9341c974e/10ba95feb36c4f38972064b36ab1340f/FLAG30bf684a9 [2020-09-25 01:48:13,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9341c974e/10ba95feb36c4f38972064b36ab1340f [2020-09-25 01:48:13,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:48:13,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:48:13,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:13,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:48:13,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:48:13,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:13" (1/1) ... [2020-09-25 01:48:13,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:13, skipping insertion in model container [2020-09-25 01:48:13,527 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:48:13" (1/1) ... [2020-09-25 01:48:13,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:48:13,586 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:48:13,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:14,013 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:48:14,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:48:14,277 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:48:14,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14 WrapperNode [2020-09-25 01:48:14,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:48:14,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:48:14,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:48:14,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:48:14,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... [2020-09-25 01:48:14,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:48:14,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:48:14,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:48:14,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:48:14,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:48:14,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:48:14,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:48:14,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:14,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:48:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:48:14,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:48:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:48:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:48:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:48:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:48:14,486 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:48:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:48:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:48:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:48:14,487 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:48:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:48:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:48:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:48:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:48:14,488 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:48:14,489 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:48:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:48:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:48:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:48:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:48:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:48:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:48:14,492 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:48:14,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:48:14,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:48:14,495 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:48:14,496 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:48:14,497 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 01:48:14,498 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 01:48:14,499 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:48:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:48:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:48:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:48:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:48:15,866 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:48:15,866 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:48:15,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:15 BoogieIcfgContainer [2020-09-25 01:48:15,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:48:15,884 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:48:15,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:48:15,889 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:48:15,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:48:13" (1/3) ... [2020-09-25 01:48:15,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6cf60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:15, skipping insertion in model container [2020-09-25 01:48:15,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:48:14" (2/3) ... [2020-09-25 01:48:15,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6cf60a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:48:15, skipping insertion in model container [2020-09-25 01:48:15,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:48:15" (3/3) ... [2020-09-25 01:48:15,894 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product45.cil.c [2020-09-25 01:48:15,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:48:15,919 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:48:15,941 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:48:15,974 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:48:15,974 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:48:15,974 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:48:15,974 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:48:15,974 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:48:15,975 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:48:15,975 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:48:15,975 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:48:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states. [2020-09-25 01:48:16,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 01:48:16,025 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:16,026 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] [2020-09-25 01:48:16,027 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:16,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:16,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1778587784, now seen corresponding path program 1 times [2020-09-25 01:48:16,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:16,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352674369] [2020-09-25 01:48:16,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:16,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:16,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:17,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:18,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:19,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:21,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:21,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 01:48:21,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:48:21,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:48:21,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:21,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 01:48:21,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:21,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:48:21,950 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:21,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:21,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:22,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 136 [2020-09-25 01:48:22,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:22,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:22,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:22,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:22,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:22,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:22,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:48:22,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:22,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:22,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:22,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:22,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:22,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:22,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 01:48:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:22,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:22,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:22,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:22,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:48:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:22,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:22,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:22,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:22,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:22,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:22,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:22,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:22,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:22,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:22,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:22,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352674369] [2020-09-25 01:48:22,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:22,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:48:22,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88746626] [2020-09-25 01:48:22,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:48:22,300 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:22,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:48:22,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:48:22,323 INFO L87 Difference]: Start difference. First operand 319 states. Second operand 4 states. [2020-09-25 01:48:23,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:23,753 INFO L93 Difference]: Finished difference Result 500 states and 593 transitions. [2020-09-25 01:48:23,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 01:48:23,755 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 01:48:23,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:23,779 INFO L225 Difference]: With dead ends: 500 [2020-09-25 01:48:23,779 INFO L226 Difference]: Without dead ends: 317 [2020-09-25 01:48:23,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:48:23,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-09-25 01:48:23,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 268. [2020-09-25 01:48:23,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-09-25 01:48:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 293 transitions. [2020-09-25 01:48:23,904 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 293 transitions. Word has length 148 [2020-09-25 01:48:23,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:23,905 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 293 transitions. [2020-09-25 01:48:23,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:48:23,905 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 293 transitions. [2020-09-25 01:48:23,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 01:48:23,911 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:23,911 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] [2020-09-25 01:48:23,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:48:23,912 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:23,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:23,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1462569600, now seen corresponding path program 1 times [2020-09-25 01:48:23,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:23,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869671940] [2020-09-25 01:48:23,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:24,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:24,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:24,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:25,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:25,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:27,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 01:48:29,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 01:48:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 01:48:29,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 01:48:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:48:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,345 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:29,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:29,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 01:48:29,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:29,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:29,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:29,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:29,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:29,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:29,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:29,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:29,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:29,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:29,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:29,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:29,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:29,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:29,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 01:48:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:29,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:29,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:29,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:29,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 01:48:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:29,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:29,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:29,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:29,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:29,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:29,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:29,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:29,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869671940] [2020-09-25 01:48:29,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:29,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:48:29,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758105902] [2020-09-25 01:48:29,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:48:29,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:29,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:48:29,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:48:29,603 INFO L87 Difference]: Start difference. First operand 268 states and 293 transitions. Second operand 5 states. [2020-09-25 01:48:30,301 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:31,373 INFO L93 Difference]: Finished difference Result 429 states and 488 transitions. [2020-09-25 01:48:31,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:48:31,373 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 01:48:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:31,384 INFO L225 Difference]: With dead ends: 429 [2020-09-25 01:48:31,384 INFO L226 Difference]: Without dead ends: 306 [2020-09-25 01:48:31,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:48:31,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-25 01:48:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 258. [2020-09-25 01:48:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-09-25 01:48:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 280 transitions. [2020-09-25 01:48:31,481 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 280 transitions. Word has length 149 [2020-09-25 01:48:31,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:31,482 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 280 transitions. [2020-09-25 01:48:31,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:48:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 280 transitions. [2020-09-25 01:48:31,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 01:48:31,487 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:31,488 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] [2020-09-25 01:48:31,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:48:31,490 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:31,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:31,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1860838865, now seen corresponding path program 1 times [2020-09-25 01:48:31,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:31,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2119370237] [2020-09-25 01:48:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:31,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:31,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:32,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:32,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:34,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:36,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:36,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 01:48:36,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:48:36,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-25 01:48:36,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:48:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 01:48:36,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:48:36,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:36,945 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:36,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:36,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:37,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 01:48:37,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:37,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:48:37,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:37,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:37,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:48:37,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:37,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:37,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:37,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:37,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:37,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:48:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:37,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:37,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:48:37,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:48:37,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 01:48:37,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:48:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:37,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:37,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:37,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:37,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:48:37,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:48:37,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:37,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:48:37,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:48:37,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:48:37,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2119370237] [2020-09-25 01:48:37,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:37,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:48:37,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311398554] [2020-09-25 01:48:37,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:48:37,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:37,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:48:37,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:48:37,525 INFO L87 Difference]: Start difference. First operand 258 states and 280 transitions. Second operand 9 states. [2020-09-25 01:48:38,256 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:48:39,585 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 191 [2020-09-25 01:48:40,236 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 193 [2020-09-25 01:48:40,589 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:48:40,919 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:48:41,237 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:48:42,122 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 01:48:42,480 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2020-09-25 01:48:42,805 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:43,218 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 01:48:43,983 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 191 [2020-09-25 01:48:44,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:44,643 INFO L93 Difference]: Finished difference Result 547 states and 650 transitions. [2020-09-25 01:48:44,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-25 01:48:44,649 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 158 [2020-09-25 01:48:44,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:44,654 INFO L225 Difference]: With dead ends: 547 [2020-09-25 01:48:44,654 INFO L226 Difference]: Without dead ends: 404 [2020-09-25 01:48:44,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=140, Invalid=460, Unknown=0, NotChecked=0, Total=600 [2020-09-25 01:48:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-25 01:48:44,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 354. [2020-09-25 01:48:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2020-09-25 01:48:44,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 390 transitions. [2020-09-25 01:48:44,738 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 390 transitions. Word has length 158 [2020-09-25 01:48:44,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:44,739 INFO L479 AbstractCegarLoop]: Abstraction has 354 states and 390 transitions. [2020-09-25 01:48:44,739 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:48:44,739 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 390 transitions. [2020-09-25 01:48:44,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 01:48:44,742 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:44,743 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:44,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:48:44,743 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:44,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:44,744 INFO L82 PathProgramCache]: Analyzing trace with hash 312617414, now seen corresponding path program 1 times [2020-09-25 01:48:44,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:44,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270092860] [2020-09-25 01:48:44,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:44,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:45,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:45,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:46,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:49,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:49,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 01:48:49,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:48:49,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 01:48:49,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:49,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:48:49,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 184 [2020-09-25 01:48:49,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:48:49,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,137 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:48:50,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:48:50,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:48:50,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-09-25 01:48:50,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:48:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:50,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:50,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:48:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:50,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:50,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:48:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:48:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:48:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:50,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:48:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,300 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:50,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:50,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:48:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:48:50,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:48:50,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:48:50,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-09-25 01:48:50,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:48:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 01:48:50,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:48:50,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:48:50,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:48:50,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 01:48:50,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:48:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 01:48:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:48:50,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:48:50,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:48:50,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:48:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:48:50,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:48:50,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:48:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:48:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:48:50,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:50,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:48:50,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:48:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:48:50,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 01:48:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:50,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:50,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:50,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 01:48:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:50,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:50,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:48:50,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:48:50,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:48:50,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:48:50,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:48:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:48:50,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:48:50,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:48:50,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:48:50,695 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:48:50,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270092860] [2020-09-25 01:48:50,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:48:50,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 01:48:50,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810370497] [2020-09-25 01:48:50,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 01:48:50,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:48:50,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 01:48:50,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 01:48:50,698 INFO L87 Difference]: Start difference. First operand 354 states and 390 transitions. Second operand 10 states. [2020-09-25 01:48:52,366 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:52,692 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:48:53,018 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 01:48:53,359 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:53,689 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 01:48:53,992 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:48:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:48:54,975 INFO L93 Difference]: Finished difference Result 672 states and 802 transitions. [2020-09-25 01:48:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:48:54,976 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2020-09-25 01:48:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:48:54,980 INFO L225 Difference]: With dead ends: 672 [2020-09-25 01:48:54,980 INFO L226 Difference]: Without dead ends: 433 [2020-09-25 01:48:54,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-25 01:48:54,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2020-09-25 01:48:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 360. [2020-09-25 01:48:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-09-25 01:48:55,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 396 transitions. [2020-09-25 01:48:55,050 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 396 transitions. Word has length 218 [2020-09-25 01:48:55,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:48:55,050 INFO L479 AbstractCegarLoop]: Abstraction has 360 states and 396 transitions. [2020-09-25 01:48:55,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 01:48:55,051 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 396 transitions. [2020-09-25 01:48:55,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 01:48:55,054 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:48:55,054 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:48:55,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:48:55,055 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:48:55,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:48:55,055 INFO L82 PathProgramCache]: Analyzing trace with hash 980363814, now seen corresponding path program 1 times [2020-09-25 01:48:55,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:48:55,056 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218333069] [2020-09-25 01:48:55,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:48:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:48:55,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:55,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:48:55,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 01:49:00,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:49:00,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-09-25 01:49:00,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 176 [2020-09-25 01:49:00,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:49:00,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,456 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:49:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:49:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 01:49:00,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 01:49:00,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 01:49:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 01:49:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 01:49:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 01:49:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:49:00,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:49:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 01:49:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:00,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:49:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 01:49:00,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:49:00,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-25 01:49:00,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 01:49:00,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:49:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:49:00,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:49:00,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:49:00,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 01:49:00,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:49:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:49:00,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:49:00,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:49:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:49:00,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 01:49:00,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:49:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:49:00,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:49:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:49:00,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-09-25 01:49:00,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 01:49:00,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 01:49:00,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:49:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 01:49:00,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 01:49:00,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:00,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-25 01:49:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:49:00,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:49:00,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 01:49:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:00,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:00,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 01:49:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:49:00,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:49:00,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:49:00,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:49:00,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:49:00,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:49:00,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:49:00,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:49:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:49:00,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:49:00,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:49:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 01:49:00,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218333069] [2020-09-25 01:49:00,988 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:49:00,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:49:00,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704227990] [2020-09-25 01:49:00,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:49:00,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:49:00,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:49:00,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:49:00,990 INFO L87 Difference]: Start difference. First operand 360 states and 396 transitions. Second operand 9 states.