/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 --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_spec3_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:23,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:23,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:23,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:23,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:23,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:23,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:23,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:23,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:23,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:23,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:23,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:23,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:23,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:23,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:23,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:23,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:23,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:23,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:23,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:23,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:23,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:23,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:23,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:23,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:23,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:23,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:23,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:23,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:23,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:23,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:23,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:23,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:23,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:23,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:23,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:23,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:23,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:23,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:23,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:23,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:23,112 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 [2020-09-21 11:09:23,137 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:23,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:23,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:23,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:23,139 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:23,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:23,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:23,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:23,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:23,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:23,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:23,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:23,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:23,141 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:23,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:23,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:23,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:23,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:23,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:23,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:23,143 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:23,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:23,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:23,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:23,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:23,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:23,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:23,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:23,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:23,145 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.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; [2020-09-21 11:09:23,580 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:23,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:23,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:23,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:23,611 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:23,612 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-09-21 11:09:23,702 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da519049f/6edb90a26095471c9a71ff9fb7edd990/FLAGcf46d9b7f [2020-09-21 11:09:24,283 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:24,284 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-09-21 11:09:24,297 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da519049f/6edb90a26095471c9a71ff9fb7edd990/FLAGcf46d9b7f [2020-09-21 11:09:24,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da519049f/6edb90a26095471c9a71ff9fb7edd990 [2020-09-21 11:09:24,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:24,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:24,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:24,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:24,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:24,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:24" (1/1) ... [2020-09-21 11:09:24,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1516d3a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:24, skipping insertion in model container [2020-09-21 11:09:24,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:24" (1/1) ... [2020-09-21 11:09:24,633 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:24,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:25,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:25,160 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:25,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:25,309 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:25,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25 WrapperNode [2020-09-21 11:09:25,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:25,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:25,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:25,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:25,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (1/1) ... [2020-09-21 11:09:25,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:25,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:25,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:25,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:25,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (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 [2020-09-21 11:09:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:25,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:09:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-21 11:09:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:25,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:25,521 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:25,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:25,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:25,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:25,524 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:25,525 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-21 11:09:25,526 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:09:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:25,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:25,528 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:25,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:25,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:25,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:25,532 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:25,533 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:25,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:26,544 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:26,544 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:26,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:26 BoogieIcfgContainer [2020-09-21 11:09:26,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:26,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:26,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:26,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:26,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:24" (1/3) ... [2020-09-21 11:09:26,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d567442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:26, skipping insertion in model container [2020-09-21 11:09:26,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:25" (2/3) ... [2020-09-21 11:09:26,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d567442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:26, skipping insertion in model container [2020-09-21 11:09:26,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:26" (3/3) ... [2020-09-21 11:09:26,560 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-09-21 11:09:26,571 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:26,581 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:26,603 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:26,634 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:26,635 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:26,635 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:26,635 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:26,635 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:26,635 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:26,636 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:26,636 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-09-21 11:09:26,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:26,673 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:26,675 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] [2020-09-21 11:09:26,675 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:26,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:26,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1057158692, now seen corresponding path program 1 times [2020-09-21 11:09:26,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:26,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [504709622] [2020-09-21 11:09:26,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:26,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:26,986 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:26,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:26,987 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:26,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:26,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-21 11:09:26,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:26,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:26,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:26,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-21 11:09:27,477 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:27,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,490 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,491 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,491 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,491 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,546 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,546 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,546 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,552 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,553 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,559 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,560 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,560 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,568 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:27,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:27,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,576 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:27,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,582 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,583 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,583 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,583 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:27,590 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:27,590 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:27,590 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:27,591 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:27,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:27,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:27,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:27,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:27,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:27,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:27,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:27,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [504709622] [2020-09-21 11:09:27,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:27,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:27,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873660928] [2020-09-21 11:09:27,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:27,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:27,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:27,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:27,643 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-09-21 11:09:28,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:28,686 INFO L93 Difference]: Finished difference Result 258 states and 341 transitions. [2020-09-21 11:09:28,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:28,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:28,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:28,705 INFO L225 Difference]: With dead ends: 258 [2020-09-21 11:09:28,706 INFO L226 Difference]: Without dead ends: 140 [2020-09-21 11:09:28,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:28,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-09-21 11:09:28,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 109. [2020-09-21 11:09:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-09-21 11:09:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-09-21 11:09:28,803 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 52 [2020-09-21 11:09:28,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:28,803 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-09-21 11:09:28,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:28,804 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-09-21 11:09:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:28,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:28,807 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] [2020-09-21 11:09:28,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:28,808 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:28,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:28,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1710283751, now seen corresponding path program 1 times [2020-09-21 11:09:28,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:28,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300155796] [2020-09-21 11:09:28,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:28,883 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:28,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:09:28,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:28,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,199 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:29,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,211 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,211 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,212 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,212 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:29,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,265 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,266 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,266 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,266 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:29,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,271 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,272 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,272 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,272 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,279 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:29,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,285 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,285 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,285 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,285 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:29,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:29,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,290 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:29,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,300 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,300 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:29,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:29,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:29,307 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:29,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:29,309 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:29,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:29,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:29,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:29,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:29,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:29,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:29,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:29,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300155796] [2020-09-21 11:09:29,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:29,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:29,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727801860] [2020-09-21 11:09:29,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:29,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:29,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:29,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:29,325 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 4 states. [2020-09-21 11:09:29,842 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:30,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:30,616 INFO L93 Difference]: Finished difference Result 187 states and 228 transitions. [2020-09-21 11:09:30,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:30,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:30,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:30,620 INFO L225 Difference]: With dead ends: 187 [2020-09-21 11:09:30,620 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:09:30,622 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:30,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:09:30,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-09-21 11:09:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-21 11:09:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-09-21 11:09:30,653 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 53 [2020-09-21 11:09:30,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:30,653 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-09-21 11:09:30,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-09-21 11:09:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-21 11:09:30,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:30,656 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] [2020-09-21 11:09:30,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:30,656 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:30,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:30,657 INFO L82 PathProgramCache]: Analyzing trace with hash -830709307, now seen corresponding path program 1 times [2020-09-21 11:09:30,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:30,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263451928] [2020-09-21 11:09:30,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,110 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:31,111 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,111 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,111 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-21 11:09:31,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,463 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:31,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:09:31,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:31,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,574 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,580 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,580 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,580 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,580 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:31,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,586 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,586 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:31,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:31,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:31,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:31,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:31,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,598 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,598 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,598 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,599 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:31,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:31,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:31,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:31,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:09:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:31,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:31,608 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:31,608 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:31,608 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:31,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:31,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:31,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:31,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:31,619 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263451928] [2020-09-21 11:09:31,619 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:31,619 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:31,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293986313] [2020-09-21 11:09:31,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:31,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:31,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:31,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:31,621 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-09-21 11:09:31,980 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:32,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:32,735 INFO L93 Difference]: Finished difference Result 200 states and 246 transitions. [2020-09-21 11:09:32,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:32,736 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-09-21 11:09:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:32,738 INFO L225 Difference]: With dead ends: 200 [2020-09-21 11:09:32,739 INFO L226 Difference]: Without dead ends: 124 [2020-09-21 11:09:32,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:32,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-09-21 11:09:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 100. [2020-09-21 11:09:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-09-21 11:09:32,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-09-21 11:09:32,778 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 58 [2020-09-21 11:09:32,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:32,779 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-09-21 11:09:32,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:32,779 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-09-21 11:09:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-09-21 11:09:32,781 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:32,781 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] [2020-09-21 11:09:32,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:32,782 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:32,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:32,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1834721556, now seen corresponding path program 1 times [2020-09-21 11:09:32,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:32,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884761766] [2020-09-21 11:09:32,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,195 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,196 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,196 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,196 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-21 11:09:33,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-21 11:09:33,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:33,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:09:33,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,553 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:33,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:33,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:33,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:09:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:33,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:33,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:33,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,655 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,656 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,656 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,656 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:33,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:33,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,662 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,662 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,662 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:33,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:33,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:33,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,668 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,668 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,669 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:33,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:33,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:09:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,688 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,688 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,688 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,688 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:33,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:33,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:33,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-21 11:09:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,698 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,698 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,698 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-09-21 11:09:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,706 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:33,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:33,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:33,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:33,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-09-21 11:09:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:33,723 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:33,723 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:33,723 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:33,723 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:33,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:33,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:33,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:33,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:33,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:33,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:33,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:33,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884761766] [2020-09-21 11:09:33,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:33,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:09:33,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125442715] [2020-09-21 11:09:33,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:09:33,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:33,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:09:33,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:09:33,738 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 8 states. [2020-09-21 11:09:34,299 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:35,866 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:36,242 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:36,549 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:36,988 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:37,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:37,362 INFO L93 Difference]: Finished difference Result 299 states and 393 transitions. [2020-09-21 11:09:37,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:09:37,363 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-09-21 11:09:37,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:37,367 INFO L225 Difference]: With dead ends: 299 [2020-09-21 11:09:37,367 INFO L226 Difference]: Without dead ends: 223 [2020-09-21 11:09:37,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:09:37,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-09-21 11:09:37,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 174. [2020-09-21 11:09:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-09-21 11:09:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 205 transitions. [2020-09-21 11:09:37,416 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 205 transitions. Word has length 66 [2020-09-21 11:09:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:37,417 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 205 transitions. [2020-09-21 11:09:37,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:09:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 205 transitions. [2020-09-21 11:09:37,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 11:09:37,420 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:37,420 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] [2020-09-21 11:09:37,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:37,421 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:37,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:37,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1776072978, now seen corresponding path program 1 times [2020-09-21 11:09:37,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:37,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564587797] [2020-09-21 11:09:37,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:37,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:37,678 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:37,678 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:37,678 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:37,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:37,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:09:37,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:37,962 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:37,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,059 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,059 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,059 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,060 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-21 11:09:38,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:38,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,096 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,096 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,096 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,096 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:38,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,101 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,101 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,101 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,102 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,107 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:38,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,115 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,115 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:09:38,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:38,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:09:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,137 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:38,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:09:38,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,153 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,153 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,153 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,154 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:38,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:09:38,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,163 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,163 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,163 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,164 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:38,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:38,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-09-21 11:09:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,168 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,168 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,168 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:38,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:38,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-09-21 11:09:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,173 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,173 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,173 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,173 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:09:38,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:38,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:38,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-21 11:09:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:38,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:38,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:38,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:38,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:38,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:38,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:38,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:38,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:38,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:38,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:38,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:38,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564587797] [2020-09-21 11:09:38,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:38,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 11:09:38,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481742823] [2020-09-21 11:09:38,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:09:38,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:38,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:09:38,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:09:38,207 INFO L87 Difference]: Start difference. First operand 174 states and 205 transitions. Second operand 6 states. [2020-09-21 11:09:38,704 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:39,580 INFO L93 Difference]: Finished difference Result 296 states and 363 transitions. [2020-09-21 11:09:39,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:09:39,581 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-09-21 11:09:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:39,588 INFO L225 Difference]: With dead ends: 296 [2020-09-21 11:09:39,589 INFO L226 Difference]: Without dead ends: 146 [2020-09-21 11:09:39,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:09:39,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-09-21 11:09:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 133. [2020-09-21 11:09:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-21 11:09:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 148 transitions. [2020-09-21 11:09:39,657 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 148 transitions. Word has length 70 [2020-09-21 11:09:39,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:39,658 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 148 transitions. [2020-09-21 11:09:39,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:09:39,658 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 148 transitions. [2020-09-21 11:09:39,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-21 11:09:39,660 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:39,661 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] [2020-09-21 11:09:39,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:39,661 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:39,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1882239654, now seen corresponding path program 1 times [2020-09-21 11:09:39,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:39,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [719960779] [2020-09-21 11:09:39,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:39,749 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:39,749 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:39,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:09:39,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:39 BoogieIcfgContainer [2020-09-21 11:09:39,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:39,789 INFO L168 Benchmark]: Toolchain (without parser) took 15182.81 ms. Allocated memory was 140.0 MB in the beginning and 425.2 MB in the end (delta: 285.2 MB). Free memory was 100.5 MB in the beginning and 120.4 MB in the end (delta: -19.8 MB). Peak memory consumption was 265.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,790 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.97 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 174.2 MB in the end (delta: -74.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,799 INFO L168 Benchmark]: Boogie Preprocessor took 92.42 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 169.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,800 INFO L168 Benchmark]: RCFGBuilder took 1146.96 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.6 MB in the beginning and 202.9 MB in the end (delta: -33.3 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,801 INFO L168 Benchmark]: TraceAbstraction took 13235.13 ms. Allocated memory was 236.5 MB in the beginning and 425.2 MB in the end (delta: 188.7 MB). Free memory was 202.9 MB in the beginning and 120.4 MB in the end (delta: 82.6 MB). Peak memory consumption was 271.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:39,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.97 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 99.8 MB in the beginning and 174.2 MB in the end (delta: -74.4 MB). Peak memory consumption was 27.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.42 ms. Allocated memory is still 203.9 MB. Free memory was 174.2 MB in the beginning and 169.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1146.96 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 169.6 MB in the beginning and 202.9 MB in the end (delta: -33.3 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13235.13 ms. Allocated memory was 236.5 MB in the beginning and 425.2 MB in the end (delta: 188.7 MB). Free memory was 202.9 MB in the beginning and 120.4 MB in the end (delta: 82.6 MB). Peak memory consumption was 271.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L96] int pumpRunning = 0; [L97] int systemActive = 1; [L309] int waterLevel = 1; [L310] int methaneLevelCritical = 0; [L389] int cleanupTimeShifts = 4; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int retValue_acc ; [L463] int tmp ; [L467] FCALL select_helpers() [L468] FCALL select_features() [L469] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L469] RET, EXPR valid_product() [L469] tmp = valid_product() [L471] COND TRUE \read(tmp) [L473] FCALL setup() [L474] CALL runTest() [L456] CALL test() [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] splverifierCounter = 0 [L251] COND TRUE 1 [L253] COND TRUE splverifierCounter < 4 [L259] tmp = __VERIFIER_nondet_int() [L261] COND TRUE \read(tmp) [L263] CALL waterRise() [L327] COND TRUE waterLevel < 2 [L328] waterLevel = waterLevel + 1 [L263] RET waterRise() [L269] tmp___0 = __VERIFIER_nondet_int() [L271] COND FALSE !(\read(tmp___0)) [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp___2)) [L287] tmp___1 = __VERIFIER_nondet_int() [L289] COND TRUE \read(tmp___1) [L296] CALL timeShift() [L104] COND FALSE !(\read(pumpRunning)) [L111] COND TRUE \read(systemActive) [L113] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] FCALL processEnvironment__wrappee__base() [L113] RET processEnvironment() [L119] CALL __utac_acc__Specification3_spec__1() [L852] int tmp ; [L853] int tmp___0 ; [L854] int tmp___1 ; [L858] CALL, EXPR isMethaneLevelCritical() [L348] int retValue_acc ; [L351] retValue_acc = methaneLevelCritical [L352] return (retValue_acc); [L858] RET, EXPR isMethaneLevelCritical() [L858] tmp = isMethaneLevelCritical() [L860] COND FALSE !(\read(tmp)) [L864] CALL, EXPR getWaterLevel() [L380] int retValue_acc ; [L383] retValue_acc = waterLevel [L384] return (retValue_acc); [L864] RET, EXPR getWaterLevel() [L864] tmp___0 = getWaterLevel() [L866] COND TRUE tmp___0 == 2 [L868] CALL, EXPR isPumpRunning() [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] return (retValue_acc); [L868] RET, EXPR isPumpRunning() [L868] tmp___1 = isPumpRunning() [L870] COND FALSE !(\read(tmp___1)) [L874] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 13.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 445 SDtfs, 580 SDslu, 199 SDs, 0 SdLazy, 1007 SolverSat, 391 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 141 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 369 NumberOfCodeBlocks, 369 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 82798 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...