/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 interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:42:01,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:42:01,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:42:01,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:42:01,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:42:01,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:42:01,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:42:01,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:42:01,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:42:01,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:42:01,461 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:42:01,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:42:01,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:42:01,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:42:01,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:42:01,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:42:01,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:42:01,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:42:01,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:42:01,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:42:01,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:42:01,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:42:01,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:42:01,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:42:01,497 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:42:01,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:42:01,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:42:01,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:42:01,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:42:01,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:42:01,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:42:01,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:42:01,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:42:01,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:42:01,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:42:01,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:42:01,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:42:01,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:42:01,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:42:01,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:42:01,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:42:01,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 15:42:01,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:42:01,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:42:01,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:42:01,556 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:42:01,556 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:42:01,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:42:01,557 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:42:01,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:42:01,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:42:01,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:42:01,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:42:01,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:42:01,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:42:01,559 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:42:01,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:42:01,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:42:01,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:42:01,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:42:01,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:42:01,560 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:42:01,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:42:01,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:42:01,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:42:01,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:42:01,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:42:01,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:42:01,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:42:01,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:42:01,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:42:01,563 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:42:02,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:42:02,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:42:02,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:42:02,038 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:42:02,039 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:42:02,040 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 15:42:02,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eebee1db/46db118e240f4cd48f3d4a2fcc0411f3/FLAG3ceb1ad1c [2020-09-24 15:42:02,785 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:42:02,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product56.cil.c [2020-09-24 15:42:02,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eebee1db/46db118e240f4cd48f3d4a2fcc0411f3/FLAG3ceb1ad1c [2020-09-24 15:42:03,080 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2eebee1db/46db118e240f4cd48f3d4a2fcc0411f3 [2020-09-24 15:42:03,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:42:03,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:42:03,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:42:03,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:42:03,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:42:03,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13d2c9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03, skipping insertion in model container [2020-09-24 15:42:03,112 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:42:03,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:42:03,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:42:03,644 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:42:03,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:42:03,789 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:42:03,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03 WrapperNode [2020-09-24 15:42:03,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:42:03,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:42:03,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:42:03,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:42:03,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... [2020-09-24 15:42:03,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:42:03,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:42:03,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:42:03,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:42:03,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:42:03,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:42:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:42:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:42:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:42:03,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:42:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:42:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:42:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:42:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:42:03,967 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:42:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:42:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 15:42:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:42:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:42:03,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:42:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:42:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:42:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:42:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:42:03,969 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:42:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 15:42:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 15:42:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-24 15:42:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 15:42:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:42:03,971 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:42:03,972 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:42:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:42:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:42:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:42:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 15:42:03,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 15:42:03,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:42:03,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:42:03,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:42:03,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-24 15:42:03,977 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 15:42:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-24 15:42:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 15:42:03,980 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:42:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:42:03,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:42:03,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:42:05,260 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:42:05,261 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:42:05,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:42:05 BoogieIcfgContainer [2020-09-24 15:42:05,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:42:05,278 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:42:05,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:42:05,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:42:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:42:03" (1/3) ... [2020-09-24 15:42:05,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebbb011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:42:05, skipping insertion in model container [2020-09-24 15:42:05,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:42:03" (2/3) ... [2020-09-24 15:42:05,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebbb011 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:42:05, skipping insertion in model container [2020-09-24 15:42:05,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:42:05" (3/3) ... [2020-09-24 15:42:05,288 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56.cil.c [2020-09-24 15:42:05,300 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:42:05,315 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:42:05,339 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:42:05,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:42:05,386 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:42:05,386 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:42:05,387 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:42:05,387 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:42:05,387 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:42:05,387 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:42:05,389 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:42:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states. [2020-09-24 15:42:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-24 15:42:05,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:05,464 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] [2020-09-24 15:42:05,465 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:05,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:05,477 INFO L82 PathProgramCache]: Analyzing trace with hash 826882234, now seen corresponding path program 1 times [2020-09-24 15:42:05,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:05,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52842737] [2020-09-24 15:42:05,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:05,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:05,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:05,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:05,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:05,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-24 15:42:05,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:05,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:42:05,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:42:05,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:05,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,436 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:06,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,482 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,482 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,482 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,482 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:06,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:06,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:06,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,574 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:06,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:06,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,581 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:06,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:06,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,593 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:06,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:06,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:42:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,599 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,600 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,600 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,600 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:06,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:06,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 15:42:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:06,606 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:06,607 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:06,607 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:06,607 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:06,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:06,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:06,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:06,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:06,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:06,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:06,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:06,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:06,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52842737] [2020-09-24 15:42:06,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:06,648 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:42:06,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331344061] [2020-09-24 15:42:06,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:42:06,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:06,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:42:06,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:42:06,674 INFO L87 Difference]: Start difference. First operand 342 states. Second operand 3 states. [2020-09-24 15:42:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:08,301 INFO L93 Difference]: Finished difference Result 554 states and 662 transitions. [2020-09-24 15:42:08,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:42:08,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-24 15:42:08,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:08,325 INFO L225 Difference]: With dead ends: 554 [2020-09-24 15:42:08,326 INFO L226 Difference]: Without dead ends: 337 [2020-09-24 15:42:08,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:42:08,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-09-24 15:42:08,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 291. [2020-09-24 15:42:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-24 15:42:08,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 320 transitions. [2020-09-24 15:42:08,448 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 320 transitions. Word has length 142 [2020-09-24 15:42:08,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:08,450 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 320 transitions. [2020-09-24 15:42:08,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:42:08,450 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 320 transitions. [2020-09-24 15:42:08,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-24 15:42:08,454 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:08,455 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] [2020-09-24 15:42:08,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:42:08,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:08,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:08,456 INFO L82 PathProgramCache]: Analyzing trace with hash -820599246, now seen corresponding path program 1 times [2020-09-24 15:42:08,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:08,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1073235375] [2020-09-24 15:42:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:08,543 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:08,543 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:08,543 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:08,544 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:08,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-24 15:42:08,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:08,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:42:08,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:42:08,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:42:08,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:08,932 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:08,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:08,953 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:08,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:08,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:08,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:08,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:08,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:08,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:08,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:08,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:08,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:08,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,038 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:09,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:09,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:09,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:09,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,051 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:09,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:09,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,060 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,060 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,060 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:09,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:09,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:42:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,065 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,065 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,066 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,066 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:09,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:09,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:42:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:09,071 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:09,071 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:09,071 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:09,071 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:09,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:09,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:09,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:09,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:09,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1073235375] [2020-09-24 15:42:09,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:09,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:42:09,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300507428] [2020-09-24 15:42:09,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:42:09,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:09,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:42:09,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:42:09,109 INFO L87 Difference]: Start difference. First operand 291 states and 320 transitions. Second operand 4 states. [2020-09-24 15:42:09,767 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:11,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:11,066 INFO L93 Difference]: Finished difference Result 461 states and 525 transitions. [2020-09-24 15:42:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:42:11,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-24 15:42:11,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:11,073 INFO L225 Difference]: With dead ends: 461 [2020-09-24 15:42:11,073 INFO L226 Difference]: Without dead ends: 320 [2020-09-24 15:42:11,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:42:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-24 15:42:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 281. [2020-09-24 15:42:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-09-24 15:42:11,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 307 transitions. [2020-09-24 15:42:11,132 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 307 transitions. Word has length 143 [2020-09-24 15:42:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:11,133 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 307 transitions. [2020-09-24 15:42:11,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:42:11,133 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 307 transitions. [2020-09-24 15:42:11,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-24 15:42:11,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:11,135 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] [2020-09-24 15:42:11,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:42:11,135 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:11,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:11,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1576489327, now seen corresponding path program 1 times [2020-09-24 15:42:11,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:11,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1977542906] [2020-09-24 15:42:11,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,212 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:42:11,212 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -42 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 42 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:11,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 15:42:11,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:11,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,558 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:11,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,569 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,569 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,570 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:11,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,614 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,615 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,615 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:11,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,619 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,619 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,619 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,620 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:11,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,624 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,624 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:11,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,630 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,630 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:11,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-24 15:42:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,648 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:11,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:11,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:42:11,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:42:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:11,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:11,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:42:11,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:11,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:11,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:11,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:11,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:11,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:11,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:11,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:11,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:11,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:11,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:11,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:11,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:11,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1977542906] [2020-09-24 15:42:11,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:11,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 15:42:11,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379380850] [2020-09-24 15:42:11,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 15:42:11,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:11,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 15:42:11,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:42:11,726 INFO L87 Difference]: Start difference. First operand 281 states and 307 transitions. Second operand 5 states. [2020-09-24 15:42:12,259 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:14,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:14,599 INFO L93 Difference]: Finished difference Result 697 states and 814 transitions. [2020-09-24 15:42:14,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 15:42:14,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-24 15:42:14,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:14,606 INFO L225 Difference]: With dead ends: 697 [2020-09-24 15:42:14,606 INFO L226 Difference]: Without dead ends: 526 [2020-09-24 15:42:14,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 15:42:14,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-09-24 15:42:14,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 442. [2020-09-24 15:42:14,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-09-24 15:42:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 495 transitions. [2020-09-24 15:42:14,685 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 495 transitions. Word has length 156 [2020-09-24 15:42:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:14,686 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 495 transitions. [2020-09-24 15:42:14,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 15:42:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 495 transitions. [2020-09-24 15:42:14,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-24 15:42:14,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:14,689 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] [2020-09-24 15:42:14,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:42:14,689 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:14,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:14,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1953483698, now seen corresponding path program 1 times [2020-09-24 15:42:14,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:14,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125951664] [2020-09-24 15:42:14,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:14,785 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:14,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:14,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:14,786 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:14,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-24 15:42:14,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:14,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 15:42:14,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 15:42:14,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 15:42:14,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-09-24 15:42:14,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,206 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,258 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:15,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:15,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 15:42:15,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,310 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,311 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,311 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,311 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:15,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:15,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,317 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,317 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,317 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:15,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:15,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,324 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:15,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:15,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,331 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,331 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:15,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-24 15:42:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:15,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:42:15,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 15:42:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,366 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,366 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,366 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:15,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:42:15,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:15,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:15,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:15,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 15:42:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:15,397 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:15,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:15,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:15,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:15,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:15,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:15,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:15,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:15,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125951664] [2020-09-24 15:42:15,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:15,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 15:42:15,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049932770] [2020-09-24 15:42:15,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 15:42:15,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:15,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 15:42:15,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-24 15:42:15,464 INFO L87 Difference]: Start difference. First operand 442 states and 495 transitions. Second operand 9 states. [2020-09-24 15:42:16,090 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:17,396 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:42:17,769 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:42:18,286 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:18,627 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:19,002 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:42:19,489 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 15:42:19,901 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:42:20,653 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:22,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:22,087 INFO L93 Difference]: Finished difference Result 1226 states and 1467 transitions. [2020-09-24 15:42:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:42:22,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-24 15:42:22,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:22,099 INFO L225 Difference]: With dead ends: 1226 [2020-09-24 15:42:22,099 INFO L226 Difference]: Without dead ends: 894 [2020-09-24 15:42:22,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:42:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-09-24 15:42:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 747. [2020-09-24 15:42:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-09-24 15:42:22,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 850 transitions. [2020-09-24 15:42:22,273 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 850 transitions. Word has length 161 [2020-09-24 15:42:22,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:22,275 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 850 transitions. [2020-09-24 15:42:22,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 15:42:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 850 transitions. [2020-09-24 15:42:22,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:42:22,281 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:22,281 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, 1, 1, 1, 1, 1] [2020-09-24 15:42:22,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:42:22,282 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:22,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:22,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1356616012, now seen corresponding path program 1 times [2020-09-24 15:42:22,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:22,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330588941] [2020-09-24 15:42:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,396 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:42:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 15:42:22,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-24 15:42:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:42:22,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-24 15:42:22,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,743 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:22,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,786 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,786 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,786 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,787 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:22,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:22,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:42:22,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:22,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,840 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,840 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,840 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,840 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:22,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:22,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:22,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,845 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,845 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,845 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:22,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:22,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:22,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:22,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:22,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,861 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:22,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:22,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:22,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:42:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,875 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,876 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,876 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,876 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:22,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:22,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:42:22,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 15:42:22,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,901 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,901 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,901 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,901 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:22,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:22,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 15:42:22,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:22,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:42:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,909 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:22,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:22,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:22,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:22,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:42:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:22,920 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:22,921 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:22,921 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:22,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:23,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330588941] [2020-09-24 15:42:23,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:23,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:42:23,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60992708] [2020-09-24 15:42:23,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:42:23,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:23,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:42:23,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:42:23,008 INFO L87 Difference]: Start difference. First operand 747 states and 850 transitions. Second operand 10 states. [2020-09-24 15:42:23,531 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:25,036 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:25,367 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:42:25,701 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:26,030 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:42:26,335 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:27,230 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:27,453 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:42:27,772 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:29,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:29,183 INFO L93 Difference]: Finished difference Result 1984 states and 2451 transitions. [2020-09-24 15:42:29,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 15:42:29,184 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-24 15:42:29,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:29,195 INFO L225 Difference]: With dead ends: 1984 [2020-09-24 15:42:29,196 INFO L226 Difference]: Without dead ends: 1347 [2020-09-24 15:42:29,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-24 15:42:29,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2020-09-24 15:42:29,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1111. [2020-09-24 15:42:29,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-09-24 15:42:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1290 transitions. [2020-09-24 15:42:29,446 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1290 transitions. Word has length 166 [2020-09-24 15:42:29,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:29,446 INFO L479 AbstractCegarLoop]: Abstraction has 1111 states and 1290 transitions. [2020-09-24 15:42:29,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:42:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1290 transitions. [2020-09-24 15:42:29,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 15:42:29,453 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:29,453 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:42:29,453 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:42:29,454 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:29,454 INFO L82 PathProgramCache]: Analyzing trace with hash 515628642, now seen corresponding path program 1 times [2020-09-24 15:42:29,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:29,455 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128211410] [2020-09-24 15:42:29,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:42:29,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -83 [2020-09-24 15:42:29,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 83 [2020-09-24 15:42:29,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 15:42:29,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:42:29,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-24 15:42:29,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:29,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,796 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:29,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,843 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:29,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,847 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:29,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:29,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:42:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,871 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,871 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,871 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,871 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:29,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:42:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,883 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,883 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,883 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:29,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:29,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:29,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:29,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:42:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,902 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,903 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,903 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,903 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:42:29,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:29,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:29,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-24 15:42:29,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:29,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:42:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:29,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 15:42:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:29,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,937 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:42:29,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:29,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 15:42:29,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:29,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:29,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,949 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,950 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,950 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,950 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:42:29,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:29,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:29,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 15:42:29,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 15:42:29,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:29,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:42:29,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:29,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:29,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:29,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:29,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:29,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:42:29,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:29,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:42:29,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 15:42:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:29,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:29,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:30,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:42:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:30,006 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:30,006 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:30,006 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:30,006 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:30,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:30,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:30,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:30,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:30,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:42:30,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:30,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:30,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:42:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:30,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:30,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:30,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:30,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:30,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:30,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 15:42:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:30,019 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:30,019 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:30,019 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:30,020 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:30,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:30,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:30,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:30,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:30,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:30,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:30,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:30,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128211410] [2020-09-24 15:42:30,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:30,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 15:42:30,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771909904] [2020-09-24 15:42:30,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 15:42:30,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:30,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 15:42:30,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:42:30,065 INFO L87 Difference]: Start difference. First operand 1111 states and 1290 transitions. Second operand 10 states. [2020-09-24 15:42:31,475 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:31,798 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:42:32,117 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:32,461 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:42:32,771 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:34,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:34,321 INFO L93 Difference]: Finished difference Result 2653 states and 3391 transitions. [2020-09-24 15:42:34,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 15:42:34,322 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 204 [2020-09-24 15:42:34,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:34,335 INFO L225 Difference]: With dead ends: 2653 [2020-09-24 15:42:34,336 INFO L226 Difference]: Without dead ends: 1652 [2020-09-24 15:42:34,342 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-24 15:42:34,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1652 states. [2020-09-24 15:42:34,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1652 to 1141. [2020-09-24 15:42:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1141 states. [2020-09-24 15:42:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1322 transitions. [2020-09-24 15:42:34,579 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1322 transitions. Word has length 204 [2020-09-24 15:42:34,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:34,579 INFO L479 AbstractCegarLoop]: Abstraction has 1141 states and 1322 transitions. [2020-09-24 15:42:34,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 15:42:34,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1322 transitions. [2020-09-24 15:42:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 15:42:34,584 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:34,585 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:42:34,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 15:42:34,585 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:34,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:34,585 INFO L82 PathProgramCache]: Analyzing trace with hash 101997250, now seen corresponding path program 1 times [2020-09-24 15:42:34,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:34,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592803290] [2020-09-24 15:42:34,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:34,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:34,653 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:34,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:34,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:34,654 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:34,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 15:42:34,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:34,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 15:42:34,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:42:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 195 [2020-09-24 15:42:34,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:42:34,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:34,971 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:34,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:34,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:34,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:34,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:34,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:34,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:34,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:34,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:34,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:34,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:34,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:34,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:34,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:35,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:35,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,032 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:35,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,038 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,038 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,038 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,039 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:35,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,044 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:35,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,049 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,049 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,049 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,050 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:35,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:42:35,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,063 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,063 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,063 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,063 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:35,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:42:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,075 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,075 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,075 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,076 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:35,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:42:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,097 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,097 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:42:35,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-24 15:42:35,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:42:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,116 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,116 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:42:35,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:35,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:42:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-24 15:42:35,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:42:35,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,140 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:42:35,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:42:35,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 15:42:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 15:42:35,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:42:35,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,176 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,176 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,177 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,177 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:42:35,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 15:42:35,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:42:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 15:42:35,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:42:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:42:35,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:35,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:35,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:42:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,228 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:35,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-24 15:42:35,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:42:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,236 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,237 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:35,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:35,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 15:42:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:35,241 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:35,242 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:35,242 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:35,242 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:35,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:35,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:35,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:35,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:35,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:35,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:35,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592803290] [2020-09-24 15:42:35,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:35,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 15:42:35,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799826271] [2020-09-24 15:42:35,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 15:42:35,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:35,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 15:42:35,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 15:42:35,287 INFO L87 Difference]: Start difference. First operand 1141 states and 1322 transitions. Second operand 11 states. [2020-09-24 15:42:36,910 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:37,249 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:42:37,567 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 15:42:37,891 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:38,202 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 15:42:38,482 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:42:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:40,429 INFO L93 Difference]: Finished difference Result 2695 states and 3366 transitions. [2020-09-24 15:42:40,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-24 15:42:40,429 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 204 [2020-09-24 15:42:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:40,439 INFO L225 Difference]: With dead ends: 2695 [2020-09-24 15:42:40,439 INFO L226 Difference]: Without dead ends: 1664 [2020-09-24 15:42:40,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-09-24 15:42:40,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2020-09-24 15:42:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1173. [2020-09-24 15:42:40,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1173 states. [2020-09-24 15:42:40,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1173 states to 1173 states and 1354 transitions. [2020-09-24 15:42:40,593 INFO L78 Accepts]: Start accepts. Automaton has 1173 states and 1354 transitions. Word has length 204 [2020-09-24 15:42:40,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:40,593 INFO L479 AbstractCegarLoop]: Abstraction has 1173 states and 1354 transitions. [2020-09-24 15:42:40,593 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 15:42:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1173 states and 1354 transitions. [2020-09-24 15:42:40,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-24 15:42:40,603 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:40,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:42:40,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 15:42:40,603 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:40,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:40,604 INFO L82 PathProgramCache]: Analyzing trace with hash 446110533, now seen corresponding path program 1 times [2020-09-24 15:42:40,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:40,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269296733] [2020-09-24 15:42:40,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:40,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:40,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:40,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:40,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-24 15:42:40,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-24 15:42:40,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-24 15:42:40,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:41,068 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:42:41,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:42:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,110 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,110 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:42:41,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-24 15:42:41,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:42:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,170 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:41,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:41,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:42:41,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,177 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,178 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,178 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,178 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:41,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:41,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:41,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:42:41,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,191 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,191 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,191 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,192 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:41,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:42:41,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:42:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,199 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:42:41,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:41,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:42:41,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-24 15:42:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 15:42:41,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 15:42:41,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-24 15:42:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,234 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,234 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,235 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,235 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:41,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:41,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:42:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-24 15:42:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,262 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,263 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,263 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,263 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-09-24 15:42:41,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-09-24 15:42:41,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 15:42:41,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,294 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,295 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,295 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 15:42:41,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:42:41,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-24 15:42:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,321 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,321 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,321 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,322 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 15:42:41,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 15:42:41,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 15:42:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,349 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,350 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,350 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 15:42:41,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 15:42:41,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 15:42:41,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,377 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,378 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,379 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 15:42:41,379 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:42:41,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:42:41,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 15:42:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,399 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,399 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 15:42:41,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:42:41,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:42:41,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:42:41,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 15:42:41,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-24 15:42:41,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,412 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,412 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,413 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:41,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:41,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:41,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:41,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:42:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-24 15:42:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:42:41,417 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:42:41,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:42:41,418 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:42:41,418 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:42:41,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:42:41,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:42:41,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:42:41,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:42:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:42:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:42:41,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:42:41,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:42:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:42:41,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269296733] [2020-09-24 15:42:41,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:42:41,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:42:41,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399438342] [2020-09-24 15:42:41,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:42:41,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:42:41,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:42:41,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:42:41,500 INFO L87 Difference]: Start difference. First operand 1173 states and 1354 transitions. Second operand 8 states. [2020-09-24 15:42:42,171 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:42,763 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:42:47,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:42:47,388 INFO L93 Difference]: Finished difference Result 4045 states and 5196 transitions. [2020-09-24 15:42:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-24 15:42:47,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 204 [2020-09-24 15:42:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:42:47,411 INFO L225 Difference]: With dead ends: 4045 [2020-09-24 15:42:47,412 INFO L226 Difference]: Without dead ends: 2982 [2020-09-24 15:42:47,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-09-24 15:42:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2020-09-24 15:42:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2183. [2020-09-24 15:42:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2183 states. [2020-09-24 15:42:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2544 transitions. [2020-09-24 15:42:47,818 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2544 transitions. Word has length 204 [2020-09-24 15:42:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:42:47,818 INFO L479 AbstractCegarLoop]: Abstraction has 2183 states and 2544 transitions. [2020-09-24 15:42:47,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:42:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2544 transitions. [2020-09-24 15:42:47,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-24 15:42:47,825 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:42:47,825 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 15:42:47,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 15:42:47,825 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:42:47,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:42:47,826 INFO L82 PathProgramCache]: Analyzing trace with hash 2057395573, now seen corresponding path program 1 times [2020-09-24 15:42:47,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:42:47,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [224736767] [2020-09-24 15:42:47,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:42:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:42:47,957 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:42:47,958 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:42:47,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 15:42:48,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:42:48 BoogieIcfgContainer [2020-09-24 15:42:48,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:42:48,021 INFO L168 Benchmark]: Toolchain (without parser) took 44925.10 ms. Allocated memory was 141.0 MB in the beginning and 874.0 MB in the end (delta: 733.0 MB). Free memory was 103.2 MB in the beginning and 482.4 MB in the end (delta: -379.3 MB). Peak memory consumption was 353.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,022 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,022 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.11 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 172.9 MB in the end (delta: -70.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,023 INFO L168 Benchmark]: Boogie Preprocessor took 99.11 ms. Allocated memory is still 205.0 MB. Free memory was 172.9 MB in the beginning and 168.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,024 INFO L168 Benchmark]: RCFGBuilder took 1386.38 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 169.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,025 INFO L168 Benchmark]: TraceAbstraction took 42739.99 ms. Allocated memory was 237.0 MB in the beginning and 874.0 MB in the end (delta: 637.0 MB). Free memory was 169.6 MB in the beginning and 482.4 MB in the end (delta: -312.8 MB). Peak memory consumption was 324.2 MB. Max. memory is 7.1 GB. [2020-09-24 15:42:48,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 141.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.11 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 102.5 MB in the beginning and 172.9 MB in the end (delta: -70.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.11 ms. Allocated memory is still 205.0 MB. Free memory was 172.9 MB in the beginning and 168.3 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1386.38 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 168.3 MB in the beginning and 169.6 MB in the end (delta: -1.4 MB). Peak memory consumption was 80.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42739.99 ms. Allocated memory was 237.0 MB in the beginning and 874.0 MB in the end (delta: 637.0 MB). Free memory was 169.6 MB in the beginning and 482.4 MB in the end (delta: -312.8 MB). Peak memory consumption was 324.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] int tmp ; [L889] FCALL select_helpers() [L890] FCALL select_features() [L891] CALL, EXPR valid_product() [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] return (retValue_acc); [L891] RET, EXPR valid_product() [L891] tmp = valid_product() [L893] COND TRUE \read(tmp) [L895] FCALL setup() [L896] CALL runTest() [L878] CALL test() [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] splverifierCounter = 0 [L422] COND TRUE 1 [L424] COND TRUE splverifierCounter < 4 [L430] tmp = __VERIFIER_nondet_int() [L432] COND TRUE \read(tmp) [L434] CALL waterRise() [L926] COND TRUE waterLevel < 2 [L927] waterLevel = waterLevel + 1 [L434] RET waterRise() [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) [L444] CALL changeMethaneLevel() [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 [L444] RET changeMethaneLevel() [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND TRUE \read(tmp___2) [L454] CALL startSystem() [L732] systemActive = 1 [L454] RET startSystem() [L469] CALL timeShift() [L498] COND FALSE !(\read(pumpRunning)) [L505] COND TRUE \read(systemActive) [L507] CALL processEnvironment() [L579] int tmp ; [L582] COND FALSE !(\read(pumpRunning)) [L597] CALL processEnvironment__wrappee__lowWaterSensor() [L553] int tmp ; [L556] COND FALSE !(\read(pumpRunning)) [L571] CALL processEnvironment__wrappee__highWaterSensor() [L527] int tmp ; [L530] COND TRUE ! pumpRunning [L532] CALL, EXPR isHighWaterLevel() [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; [L682] CALL, EXPR isHighWaterSensorDry() [L988] int retValue_acc ; [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); [L682] RET, EXPR isHighWaterSensorDry() [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); [L532] RET, EXPR isHighWaterLevel() [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) [L536] CALL activatePump() [L607] pumpRunning = 1 [L536] RET activatePump() [L571] RET processEnvironment__wrappee__highWaterSensor() [L597] RET processEnvironment__wrappee__lowWaterSensor() [L507] RET processEnvironment() [L513] CALL __utac_acc__Specification1_spec__1() [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isMethaneLevelCritical() [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); [L782] RET, EXPR isMethaneLevelCritical() [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) [L786] CALL, EXPR isPumpRunning() [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L786] RET, EXPR isPumpRunning() [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) [L790] CALL __automaton_fail() [L806] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 659 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 42.5s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 34.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2255 SDtfs, 5185 SDslu, 3200 SDs, 0 SdLazy, 8038 SolverSat, 1809 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 207 SyntacticMatches, 4 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 311 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2183occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 2353 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1589 NumberOfCodeBlocks, 1589 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1372 ConstructedInterpolants, 0 QuantifiedInterpolants, 608530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...