/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:52:24,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:52:24,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:52:24,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:52:24,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:52:24,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:52:24,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:52:24,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:52:24,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:52:24,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:52:24,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:52:24,437 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:52:24,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:52:24,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:52:24,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:52:24,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:52:24,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:52:24,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:52:24,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:52:24,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:52:24,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:52:24,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:52:24,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:52:24,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:52:24,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:52:24,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:52:24,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:52:24,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:52:24,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:52:24,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:52:24,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:52:24,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:52:24,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:52:24,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:52:24,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:52:24,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:52:24,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:52:24,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:52:24,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:52:24,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:52:24,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:52:24,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 01:52:24,509 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:52:24,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:52:24,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:52:24,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:52:24,511 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:52:24,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:52:24,511 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:52:24,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:52:24,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:52:24,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:52:24,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:52:24,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:52:24,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:52:24,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:52:24,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:52:24,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:52:24,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:52:24,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:52:24,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:52:24,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:52:24,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:52:24,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:52:24,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:52:24,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:52:24,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:52:24,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:52:24,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:52:24,521 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:52:24,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:52:24,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:52:25,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:52:25,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:52:25,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:52:25,080 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:52:25,081 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:52:25,083 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 01:52:25,181 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f681837a/d7b2288b31ae4b03b1a9d0824d8ce980/FLAG3405a9d9e [2020-09-25 01:52:25,817 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:52:25,818 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product16.cil.c [2020-09-25 01:52:25,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f681837a/d7b2288b31ae4b03b1a9d0824d8ce980/FLAG3405a9d9e [2020-09-25 01:52:26,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6f681837a/d7b2288b31ae4b03b1a9d0824d8ce980 [2020-09-25 01:52:26,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:52:26,096 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:52:26,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:52:26,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:52:26,109 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:52:26,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa7080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26, skipping insertion in model container [2020-09-25 01:52:26,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:52:26,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:52:26,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:52:26,728 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:52:26,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:52:26,865 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:52:26,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26 WrapperNode [2020-09-25 01:52:26,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:52:26,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:52:26,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:52:26,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:52:26,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... [2020-09-25 01:52:26,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:52:26,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:52:26,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:52:26,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:52:26,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:52:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:52:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:52:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:52:27,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:52:27,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:52:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:52:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:52:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:52:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:52:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:52:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:52:27,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:52:27,087 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:52:27,088 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:52:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 01:52:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:52:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:52:27,089 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:52:27,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:52:27,090 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:52:27,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:52:27,092 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:52:27,093 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:52:27,094 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:52:27,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:52:27,096 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 01:52:27,097 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 01:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:52:27,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:52:28,266 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:52:28,266 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:52:28,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:52:28 BoogieIcfgContainer [2020-09-25 01:52:28,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:52:28,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:52:28,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:52:28,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:52:28,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:52:26" (1/3) ... [2020-09-25 01:52:28,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a269337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:52:28, skipping insertion in model container [2020-09-25 01:52:28,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:52:26" (2/3) ... [2020-09-25 01:52:28,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a269337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:52:28, skipping insertion in model container [2020-09-25 01:52:28,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:52:28" (3/3) ... [2020-09-25 01:52:28,284 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product16.cil.c [2020-09-25 01:52:28,297 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:52:28,308 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:52:28,330 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:52:28,360 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:52:28,361 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:52:28,361 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:52:28,361 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:52:28,361 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:52:28,361 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:52:28,361 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:52:28,361 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:52:28,388 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2020-09-25 01:52:28,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 01:52:28,407 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:28,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:28,409 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash -769040823, now seen corresponding path program 1 times [2020-09-25 01:52:28,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:28,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010578122] [2020-09-25 01:52:28,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:28,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:29,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:30,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:33,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:33,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 01:52:33,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:52:33,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-09-25 01:52:33,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:52:33,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:33,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:52:34,345 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:34,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 01:52:34,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:34,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:34,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:34,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:52:34,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:34,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:34,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:34,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:34,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:34,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:34,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:52:34,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:34,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:34,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:34,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:34,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:34,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:34,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 01:52:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:34,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:34,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:34,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:34,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 01:52:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:34,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:34,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:34,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:34,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:34,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:34,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:34,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010578122] [2020-09-25 01:52:34,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:34,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:52:34,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763019185] [2020-09-25 01:52:34,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:52:34,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:34,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:52:34,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:52:34,798 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 3 states. [2020-09-25 01:52:36,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:36,208 INFO L93 Difference]: Finished difference Result 424 states and 508 transitions. [2020-09-25 01:52:36,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:52:36,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 01:52:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:36,231 INFO L225 Difference]: With dead ends: 424 [2020-09-25 01:52:36,232 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 01:52:36,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:52:36,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 01:52:36,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 228. [2020-09-25 01:52:36,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 01:52:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 246 transitions. [2020-09-25 01:52:36,348 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 246 transitions. Word has length 142 [2020-09-25 01:52:36,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:36,349 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 246 transitions. [2020-09-25 01:52:36,349 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:52:36,350 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 246 transitions. [2020-09-25 01:52:36,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 01:52:36,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:36,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:36,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:52:36,356 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:36,356 INFO L82 PathProgramCache]: Analyzing trace with hash -957291699, now seen corresponding path program 1 times [2020-09-25 01:52:36,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:36,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1607802637] [2020-09-25 01:52:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:36,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:36,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:36,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:38,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:39,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 01:52:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 01:52:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 01:52:41,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:52:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:52:41,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:41,711 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:41,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:41,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:52:41,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:41,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:41,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:41,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:41,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,864 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:41,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:41,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:41,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:41,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:41,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:41,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:41,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:41,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:41,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:41,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:41,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:41,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:41,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:41,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:52:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:41,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:41,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:41,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:52:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:41,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:41,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:41,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:41,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:41,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:41,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:41,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:41,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:41,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:41,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1607802637] [2020-09-25 01:52:41,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:41,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:52:41,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591885315] [2020-09-25 01:52:41,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:52:41,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:41,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:52:41,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:52:41,932 INFO L87 Difference]: Start difference. First operand 228 states and 246 transitions. Second operand 4 states. [2020-09-25 01:52:42,615 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:52:43,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:43,366 INFO L93 Difference]: Finished difference Result 331 states and 371 transitions. [2020-09-25 01:52:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:52:43,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 01:52:43,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:43,371 INFO L225 Difference]: With dead ends: 331 [2020-09-25 01:52:43,372 INFO L226 Difference]: Without dead ends: 253 [2020-09-25 01:52:43,373 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:52:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2020-09-25 01:52:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 218. [2020-09-25 01:52:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-25 01:52:43,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 233 transitions. [2020-09-25 01:52:43,416 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 233 transitions. Word has length 143 [2020-09-25 01:52:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:43,417 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 233 transitions. [2020-09-25 01:52:43,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:52:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 233 transitions. [2020-09-25 01:52:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 01:52:43,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:43,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:43,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:52:43,421 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:43,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:43,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1898419565, now seen corresponding path program 1 times [2020-09-25 01:52:43,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:43,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95425997] [2020-09-25 01:52:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:43,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:43,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:46,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:48,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:48,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:52:48,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:52:48,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-09-25 01:52:48,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:48,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:52:48,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:52:48,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:48,920 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:48,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:48,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:49,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:49,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:49,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:49,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:49,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:52:49,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:52:49,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:52:49,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:49,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:49,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:49,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:52:49,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 01:52:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:49,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:49,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:49,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 01:52:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:49,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:49,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:52:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:49,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95425997] [2020-09-25 01:52:49,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:49,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:52:49,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203163390] [2020-09-25 01:52:49,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:52:49,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:49,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:52:49,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:52:49,138 INFO L87 Difference]: Start difference. First operand 218 states and 233 transitions. Second operand 5 states. [2020-09-25 01:52:49,643 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:51,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:52:51,220 INFO L93 Difference]: Finished difference Result 500 states and 580 transitions. [2020-09-25 01:52:51,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:52:51,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 01:52:51,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:52:51,226 INFO L225 Difference]: With dead ends: 500 [2020-09-25 01:52:51,226 INFO L226 Difference]: Without dead ends: 392 [2020-09-25 01:52:51,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:52:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2020-09-25 01:52:51,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 316. [2020-09-25 01:52:51,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2020-09-25 01:52:51,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 347 transitions. [2020-09-25 01:52:51,299 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 347 transitions. Word has length 156 [2020-09-25 01:52:51,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:52:51,299 INFO L479 AbstractCegarLoop]: Abstraction has 316 states and 347 transitions. [2020-09-25 01:52:51,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:52:51,300 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 347 transitions. [2020-09-25 01:52:51,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 01:52:51,305 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:52:51,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:52:51,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:52:51,307 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:52:51,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:52:51,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1641670536, now seen corresponding path program 1 times [2020-09-25 01:52:51,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:52:51,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147553594] [2020-09-25 01:52:51,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:52:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:52,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:55,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:52:56,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 01:52:56,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 01:52:56,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:52:56,761 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:52:56,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:52:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:52:56,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 01:52:56,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:52:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:52:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:52:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:56,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:56,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:56,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:52:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:56,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:56,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:56,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:52:56,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:56,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:52:56,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:56,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:56,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:56,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:57,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 01:52:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:57,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:57,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:57,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 01:52:57,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:57,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:52:57,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:52:57,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:57,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:52:57,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:57,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 01:52:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:57,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:57,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:57,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:57,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:57,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:52:57,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:57,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:52:57,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:57,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:57,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:57,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 01:52:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:52:57,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:52:57,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:52:57,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:52:57,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:52:57,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 01:52:57,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:52:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:52:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:52:57,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:52:57,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:52:57,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:52:57,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147553594] [2020-09-25 01:52:57,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:52:57,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:52:57,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891716115] [2020-09-25 01:52:57,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:52:57,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:52:57,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:52:57,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:52:57,201 INFO L87 Difference]: Start difference. First operand 316 states and 347 transitions. Second operand 9 states. [2020-09-25 01:52:57,925 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:52:59,439 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 01:53:00,093 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-25 01:53:00,394 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:00,746 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 01:53:01,068 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 01:53:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:53:01,333 INFO L93 Difference]: Finished difference Result 515 states and 600 transitions. [2020-09-25 01:53:01,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 01:53:01,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 01:53:01,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:53:01,335 INFO L225 Difference]: With dead ends: 515 [2020-09-25 01:53:01,335 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 01:53:01,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-09-25 01:53:01,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 01:53:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 01:53:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 01:53:01,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 01:53:01,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-09-25 01:53:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:53:01,341 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 01:53:01,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:53:01,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 01:53:01,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 01:53:01,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:53:01,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 01:53:01,523 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:01,713 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:01,880 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:02,045 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:02,204 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:02,367 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:02,528 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:02,824 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 6 [2020-09-25 01:53:02,989 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:03,147 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:03,408 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:03,674 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:03,935 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:04,178 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:53:04,291 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:04,447 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:04,602 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:04,914 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:05,223 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:05,526 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 187 [2020-09-25 01:53:05,666 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:53:05,820 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:05,967 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:06,117 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:06,273 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:06,422 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:06,568 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:06,729 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:06,879 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:07,027 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:07,176 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:07,324 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:07,468 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:07,617 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:07,766 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:07,916 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:08,064 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:08,209 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:08,357 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:08,506 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:08,657 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:08,802 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:08,951 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:09,096 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:09,213 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:09,375 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:09,617 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:09,862 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:10,105 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-25 01:53:10,337 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-09-25 01:53:10,489 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:10,644 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:10,790 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:10,939 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:11,087 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:11,291 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 6 [2020-09-25 01:53:11,438 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:11,601 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:11,748 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:11,899 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 01:53:12,048 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:53:12,486 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7 [2020-09-25 01:53:12,701 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:53:12,911 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:53:13,124 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 20 [2020-09-25 01:53:13,536 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 7