/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:20:24,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:20:24,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:20:24,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:20:24,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:20:24,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:20:24,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:20:24,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:20:24,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:20:24,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:20:24,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:20:24,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:20:24,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:20:24,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:20:24,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:20:24,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:20:24,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:20:24,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:20:24,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:20:24,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:20:24,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:20:24,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:20:24,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:20:24,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:20:24,538 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:20:24,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:20:24,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:20:24,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:20:24,540 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:20:24,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:20:24,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:20:24,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:20:24,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:20:24,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:20:24,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:20:24,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:20:24,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:20:24,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:20:24,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:20:24,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:20:24,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:20:24,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 20:20:24,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:20:24,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:20:24,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:20:24,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:20:24,581 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:20:24,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:20:24,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 20:20:24,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:20:24,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 20:20:24,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:20:24,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:20:24,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:20:24,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:20:24,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 20:20:24,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:20:24,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:20:24,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:20:24,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:20:24,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:20:24,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:20:24,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:20:24,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:20:24,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:20:24,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:20:24,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:20:24,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:20:24,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:20:24,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:20:24,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:20:24,586 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 20:20:25,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:20:25,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:20:25,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:20:25,130 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:20:25,131 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:20:25,132 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 20:20:25,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c169952/ee9a6306ee5b4bae9339d43d8de38fc6/FLAG387435649 [2020-09-24 20:20:25,759 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:20:25,760 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product55.cil.c [2020-09-24 20:20:25,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c169952/ee9a6306ee5b4bae9339d43d8de38fc6/FLAG387435649 [2020-09-24 20:20:26,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/01c169952/ee9a6306ee5b4bae9339d43d8de38fc6 [2020-09-24 20:20:26,049 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:20:26,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:20:26,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:26,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:20:26,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:20:26,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:26,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22589b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26, skipping insertion in model container [2020-09-24 20:20:26,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:26,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:20:26,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:20:26,760 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:26,777 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:20:26,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:20:26,929 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:20:26,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26 WrapperNode [2020-09-24 20:20:26,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:20:26,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:20:26,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:20:26,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:20:26,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:26,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:26,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:26,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:27,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:27,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:27,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... [2020-09-24 20:20:27,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:20:27,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:20:27,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:20:27,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:20:27,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:20:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:20:27,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:20:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:27,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 20:20:27,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 20:20:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 20:20:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 20:20:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 20:20:27,164 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 20:20:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 20:20:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:20:27,165 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 20:20:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 20:20:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 20:20:27,166 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 20:20:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 20:20:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 20:20:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 20:20:27,167 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 20:20:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 20:20:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 20:20:27,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 20:20:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 20:20:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 20:20:27,169 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 20:20:27,170 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 20:20:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 20:20:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 20:20:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 20:20:27,171 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:27,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:27,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:20:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:20:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 20:20:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 20:20:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:20:27,173 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:20:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 20:20:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:20:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:20:27,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:20:27,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 20:20:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 20:20:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:20:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 20:20:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 20:20:27,176 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 20:20:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 20:20:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 20:20:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 20:20:27,177 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 20:20:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 20:20:27,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 20:20:27,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:20:27,180 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 20:20:27,182 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 20:20:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 20:20:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 20:20:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 20:20:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 20:20:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:20:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:20:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:20:28,422 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:20:28,422 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 20:20:28,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:28 BoogieIcfgContainer [2020-09-24 20:20:28,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:20:28,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:20:28,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:20:28,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:20:28,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:20:26" (1/3) ... [2020-09-24 20:20:28,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c6ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:28, skipping insertion in model container [2020-09-24 20:20:28,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:20:26" (2/3) ... [2020-09-24 20:20:28,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c6ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:20:28, skipping insertion in model container [2020-09-24 20:20:28,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:20:28" (3/3) ... [2020-09-24 20:20:28,440 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2020-09-24 20:20:28,452 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:20:28,464 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:20:28,487 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:20:28,519 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:20:28,519 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:20:28,519 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:20:28,519 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:20:28,519 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:20:28,520 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:20:28,520 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:20:28,520 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:20:28,551 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states. [2020-09-24 20:20:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-24 20:20:28,572 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:28,574 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:28,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:28,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1837457757, now seen corresponding path program 1 times [2020-09-24 20:20:28,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:28,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516519255] [2020-09-24 20:20:28,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:29,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:29,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:31,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:33,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:34,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-24 20:20:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:20:34,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5095 [2020-09-24 20:20:34,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:20:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 20:20:34,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-09-24 20:20:34,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-24 20:20:34,801 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:34,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:34,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:35,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 290 [2020-09-24 20:20:35,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 20:20:35,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:35,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:35,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:35,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:35,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:35,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:35,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:35,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:35,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:20:35,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:35,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:35,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:35,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:35,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:35,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:35,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:35,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:20:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:35,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:20:35,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:35,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:35,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:35,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:35,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:35,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 20:20:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:35,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:35,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:35,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:35,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-24 20:20:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:35,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:35,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:35,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:20:35,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:35,452 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-24 20:20:35,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516519255] [2020-09-24 20:20:35,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:20:35,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:20:35,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922136030] [2020-09-24 20:20:35,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:20:35,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:35,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:20:35,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:20:35,487 INFO L87 Difference]: Start difference. First operand 356 states. Second operand 9 states. [2020-09-24 20:20:36,119 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:36,886 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:37,174 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:38,425 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:38,711 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:39,130 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:39,731 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:40,076 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:40,387 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:41,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:20:41,177 INFO L93 Difference]: Finished difference Result 689 states and 838 transitions. [2020-09-24 20:20:41,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 20:20:41,180 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 160 [2020-09-24 20:20:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:20:41,203 INFO L225 Difference]: With dead ends: 689 [2020-09-24 20:20:41,204 INFO L226 Difference]: Without dead ends: 457 [2020-09-24 20:20:41,211 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:41,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-09-24 20:20:41,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 408. [2020-09-24 20:20:41,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2020-09-24 20:20:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 460 transitions. [2020-09-24 20:20:41,371 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 460 transitions. Word has length 160 [2020-09-24 20:20:41,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:20:41,372 INFO L479 AbstractCegarLoop]: Abstraction has 408 states and 460 transitions. [2020-09-24 20:20:41,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:20:41,372 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 460 transitions. [2020-09-24 20:20:41,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-24 20:20:41,379 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:20:41,379 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:20:41,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:20:41,380 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:20:41,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:20:41,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1620118824, now seen corresponding path program 1 times [2020-09-24 20:20:41,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:20:41,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298124769] [2020-09-24 20:20:41,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:20:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:41,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:41,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:43,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:46,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:46,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 299 [2020-09-24 20:20:46,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 20:20:46,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-24 20:20:46,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 20:20:46,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-24 20:20:46,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-24 20:20:46,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:46,893 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:20:46,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:20:47,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 299 [2020-09-24 20:20:47,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-24 20:20:47,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:20:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:47,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:47,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:47,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:20:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:47,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:47,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:47,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:20:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:47,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 20:20:47,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:20:47,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:20:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,343 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:20:47,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:47,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:20:47,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:20:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:47,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:47,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 20:20:47,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 20:20:47,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-24 20:20:47,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 20:20:47,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 20:20:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 20:20:47,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-24 20:20:47,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:47,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 20:20:47,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:20:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 20:20:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:47,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:47,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:47,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:47,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-09-24 20:20:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 20:20:47,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 20:20:47,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-24 20:20:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 20:20:47,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:47,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:20:47,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:20:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:20:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-24 20:20:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:20:47,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:47,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:20:47,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:47,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:20:47,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:47,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:20:47,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:47,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:47,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:47,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:20:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:20:47,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:20:47,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 20:20:47,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:47,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 20:20:47,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:47,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:47,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:20:47,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-24 20:20:47,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:47,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 20:20:47,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:47,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 20:20:47,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:47,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:47,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:47,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:47,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:20:47,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:47,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-09-24 20:20:47,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 20:20:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 20:20:47,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 20:20:47,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:48,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:20:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:48,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:20:48,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:48,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:20:48,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:20:48,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:48,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 20:20:48,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:48,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:20:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:20:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 20:20:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:20:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:48,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:20:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:48,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:20:48,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:48,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:48,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:48,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:20:48,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:48,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:48,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2020-09-24 20:20:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:48,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:48,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:48,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 20:20:48,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:48,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:48,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:20:48,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-24 20:20:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:20:48,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:20:48,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:20:48,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:20:48,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:20:48,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 20:20:48,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:20:48,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:20:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:20:48,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:20:48,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:20:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-24 20:20:48,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298124769] [2020-09-24 20:20:48,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:20:48,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-24 20:20:48,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752791067] [2020-09-24 20:20:48,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-24 20:20:48,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:20:48,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-24 20:20:48,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:20:48,330 INFO L87 Difference]: Start difference. First operand 408 states and 460 transitions. Second operand 19 states. [2020-09-24 20:20:48,863 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:50,337 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:50,684 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:51,090 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:51,713 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 195 [2020-09-24 20:20:52,393 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 193 [2020-09-24 20:20:52,848 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:53,198 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:20:53,558 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 20:20:53,935 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 20:20:54,279 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:54,611 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 20:20:54,934 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:55,534 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-24 20:20:55,868 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 20:20:56,329 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:56,778 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:57,114 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:57,716 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:58,095 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:58,465 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:20:58,920 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:20:59,400 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 20:20:59,725 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 20:21:00,754 WARN L193 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:21:01,375 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-24 20:21:01,976 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-24 20:21:03,071 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 20:21:03,698 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-24 20:21:04,301 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-24 20:21:04,913 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 20:21:05,604 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 194 [2020-09-24 20:21:06,207 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 192 [2020-09-24 20:21:11,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:21:11,139 INFO L93 Difference]: Finished difference Result 1603 states and 2288 transitions. [2020-09-24 20:21:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2020-09-24 20:21:11,140 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 240 [2020-09-24 20:21:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:21:11,155 INFO L225 Difference]: With dead ends: 1603 [2020-09-24 20:21:11,156 INFO L226 Difference]: Without dead ends: 1310 [2020-09-24 20:21:11,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1307 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=823, Invalid=4007, Unknown=0, NotChecked=0, Total=4830 [2020-09-24 20:21:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2020-09-24 20:21:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 978. [2020-09-24 20:21:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2020-09-24 20:21:11,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1202 transitions. [2020-09-24 20:21:11,343 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1202 transitions. Word has length 240 [2020-09-24 20:21:11,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:21:11,344 INFO L479 AbstractCegarLoop]: Abstraction has 978 states and 1202 transitions. [2020-09-24 20:21:11,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-24 20:21:11,344 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1202 transitions. [2020-09-24 20:21:11,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 20:21:11,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:21:11,349 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 20:21:11,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:21:11,350 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:21:11,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:21:11,350 INFO L82 PathProgramCache]: Analyzing trace with hash -795996526, now seen corresponding path program 1 times [2020-09-24 20:21:11,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:21:11,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399963506] [2020-09-24 20:21:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:21:11,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:11,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:11,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-24 20:21:13,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:21:13,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1767 [2020-09-24 20:21:13,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:13,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 190 [2020-09-24 20:21:13,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:13,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:21:13,441 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 20:21:13,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:21:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 20:21:13,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 20:21:13,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:13,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:13,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 20:21:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:13,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 20:21:13,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 20:21:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:13,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 20:21:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 20:21:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:21:13,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:21:13,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 20:21:13,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-24 20:21:13,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:21:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:13,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 20:21:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 20:21:13,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:13,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:21:13,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 20:21:13,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-24 20:21:13,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 20:21:13,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:13,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:21:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 20:21:13,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-24 20:21:13,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 20:21:13,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:13,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 20:21:13,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 20:21:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-24 20:21:13,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 20:21:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:21:13,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:21:13,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 20:21:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 20:21:13,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 20:21:13,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:21:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:21:13,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 20:21:13,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:13,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 20:21:13,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:13,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:13,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:13,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:21:13,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:13,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:13,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 20:21:13,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-24 20:21:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:14,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:14,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:14,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:14,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:14,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:14,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:21:14,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:14,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-09-24 20:21:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:14,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:21:14,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 20:21:14,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:21:14,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:21:14,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 20:21:14,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 20:21:14,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:21:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 20:21:14,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:21:14,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:21:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-24 20:21:14,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399963506] [2020-09-24 20:21:14,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:21:14,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 20:21:14,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288454035] [2020-09-24 20:21:14,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:21:14,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:21:14,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:21:14,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:21:14,072 INFO L87 Difference]: Start difference. First operand 978 states and 1202 transitions. Second operand 9 states. [2020-09-24 20:21:15,708 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:21:16,006 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:16,317 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:21:16,620 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 20:21:16,914 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 20:21:18,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:21:18,057 INFO L93 Difference]: Finished difference Result 1987 states and 2618 transitions. [2020-09-24 20:21:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 20:21:18,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 204 [2020-09-24 20:21:18,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:21:18,071 INFO L225 Difference]: With dead ends: 1987 [2020-09-24 20:21:18,071 INFO L226 Difference]: Without dead ends: 1106 [2020-09-24 20:21:18,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 20:21:18,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2020-09-24 20:21:18,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 946. [2020-09-24 20:21:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 946 states. [2020-09-24 20:21:18,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1127 transitions. [2020-09-24 20:21:18,303 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1127 transitions. Word has length 204 [2020-09-24 20:21:18,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:21:18,305 INFO L479 AbstractCegarLoop]: Abstraction has 946 states and 1127 transitions. [2020-09-24 20:21:18,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 20:21:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1127 transitions. [2020-09-24 20:21:18,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-24 20:21:18,311 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:21:18,311 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] [2020-09-24 20:21:18,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 20:21:18,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:21:18,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:21:18,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1571665167, now seen corresponding path program 1 times [2020-09-24 20:21:18,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:21:18,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59164659] [2020-09-24 20:21:18,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:21:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:21:18,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking...