/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=LOWLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:18:43,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:18:43,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:18:43,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:18:43,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:18:43,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:18:43,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:18:43,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:18:43,971 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:18:43,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:18:43,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:18:43,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:18:43,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:18:43,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:18:43,979 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:18:43,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:18:43,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:18:43,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:18:43,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:18:43,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:18:44,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:18:44,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:18:44,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:18:44,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:18:44,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:18:44,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:18:44,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:18:44,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:18:44,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:18:44,026 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:18:44,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:18:44,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:18:44,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:18:44,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:18:44,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:18:44,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:18:44,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:18:44,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:18:44,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:18:44,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:18:44,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:18:44,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 21:18:44,084 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:18:44,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:18:44,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:18:44,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:18:44,087 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:18:44,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:18:44,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 21:18:44,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:18:44,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 21:18:44,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:18:44,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:18:44,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:18:44,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:18:44,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 21:18:44,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:18:44,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:18:44,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:18:44,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:18:44,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:18:44,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:18:44,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:18:44,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:18:44,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:18:44,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:18:44,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:18:44,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:18:44,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:18:44,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:18:44,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:18:44,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=LOWLEXORDER;log-additional-information=true; [2020-09-24 21:18:44,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:18:44,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:18:44,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:18:44,569 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:18:44,569 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:18:44,570 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2020-09-24 21:18:44,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a490a34/c78807c6b1fd42ddb814c789c66f7cc1/FLAG40d533b4b [2020-09-24 21:18:45,259 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:18:45,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product29.cil.c [2020-09-24 21:18:45,276 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a490a34/c78807c6b1fd42ddb814c789c66f7cc1/FLAG40d533b4b [2020-09-24 21:18:45,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d4a490a34/c78807c6b1fd42ddb814c789c66f7cc1 [2020-09-24 21:18:45,488 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:18:45,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:18:45,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:18:45,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:18:45,500 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:18:45,501 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:18:45" (1/1) ... [2020-09-24 21:18:45,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:45, skipping insertion in model container [2020-09-24 21:18:45,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:18:45" (1/1) ... [2020-09-24 21:18:45,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:18:45,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:18:45,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:18:46,067 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:18:46,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:18:46,218 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:18:46,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46 WrapperNode [2020-09-24 21:18:46,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:18:46,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:18:46,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:18:46,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:18:46,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... [2020-09-24 21:18:46,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:18:46,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:18:46,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:18:46,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:18:46,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:18:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:18:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:18:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 21:18:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 21:18:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 21:18:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:18:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 21:18:46,425 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:18:46,426 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 21:18:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 21:18:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 21:18:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 21:18:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 21:18:46,427 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 21:18:46,428 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 21:18:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 21:18:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 21:18:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 21:18:46,429 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 21:18:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 21:18:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:18:46,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:18:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:18:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 21:18:46,431 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 21:18:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 21:18:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 21:18:46,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 21:18:46,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 21:18:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 21:18:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 21:18:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 21:18:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 21:18:46,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 21:18:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:18:46,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:18:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 21:18:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 21:18:46,437 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 21:18:46,438 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 21:18:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 21:18:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 21:18:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 21:18:46,439 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 21:18:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 21:18:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 21:18:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 21:18:46,440 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 21:18:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 21:18:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 21:18:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-24 21:18:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 21:18:46,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-24 21:18:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:18:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 21:18:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 21:18:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 21:18:46,442 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 21:18:46,443 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 21:18:46,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 21:18:46,445 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 21:18:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:18:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 21:18:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 21:18:46,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:18:46,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 21:18:46,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 21:18:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 21:18:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:18:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:18:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:18:47,724 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:18:47,725 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 21:18:47,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:18:47 BoogieIcfgContainer [2020-09-24 21:18:47,732 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:18:47,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:18:47,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:18:47,738 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:18:47,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:18:45" (1/3) ... [2020-09-24 21:18:47,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:18:47, skipping insertion in model container [2020-09-24 21:18:47,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:18:46" (2/3) ... [2020-09-24 21:18:47,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fbfc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:18:47, skipping insertion in model container [2020-09-24 21:18:47,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:18:47" (3/3) ... [2020-09-24 21:18:47,742 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2020-09-24 21:18:47,754 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:18:47,766 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:18:47,791 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:18:47,827 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:18:47,827 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:18:47,827 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:18:47,828 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:18:47,828 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:18:47,828 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:18:47,828 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:18:47,828 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:18:47,860 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-24 21:18:47,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 21:18:47,880 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:47,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:18:47,882 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:47,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:47,891 INFO L82 PathProgramCache]: Analyzing trace with hash 328016978, now seen corresponding path program 1 times [2020-09-24 21:18:47,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:47,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216777313] [2020-09-24 21:18:47,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:48,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:48,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:50,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:51,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:53,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:53,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-24 21:18:53,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:18:53,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-24 21:18:53,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:53,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:53,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 21:18:53,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-24 21:18:53,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-24 21:18:53,791 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:18:53,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:18:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:53,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:18:54,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 325 [2020-09-24 21:18:54,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 21:18:54,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:18:54,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:18:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:54,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:18:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:54,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:54,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:54,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:18:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:54,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 21:18:54,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:18:54,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:18:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:18:54,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:18:54,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:18:54,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:18:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:18:54,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:18:54,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:18:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:18:54,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:18:54,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:18:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:54,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 21:18:54,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:54,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:54,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-24 21:18:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:54,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:54,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:18:54,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:18:54,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:18:54,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:18:54,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:18:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:18:54,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:18:54,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:18:54,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:18:54,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:18:54,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216777313] [2020-09-24 21:18:54,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:18:54,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 21:18:54,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380625700] [2020-09-24 21:18:54,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 21:18:54,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:18:54,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 21:18:54,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 21:18:54,424 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 5 states. [2020-09-24 21:18:55,056 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 21:18:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:18:56,211 INFO L93 Difference]: Finished difference Result 468 states and 557 transitions. [2020-09-24 21:18:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 21:18:56,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-09-24 21:18:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:18:56,236 INFO L225 Difference]: With dead ends: 468 [2020-09-24 21:18:56,236 INFO L226 Difference]: Without dead ends: 300 [2020-09-24 21:18:56,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 21:18:56,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-24 21:18:56,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 253. [2020-09-24 21:18:56,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-24 21:18:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-24 21:18:56,357 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 148 [2020-09-24 21:18:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:18:56,358 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-24 21:18:56,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 21:18:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-24 21:18:56,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 21:18:56,364 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:18:56,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:18:56,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:18:56,365 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:18:56,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:18:56,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1158136976, now seen corresponding path program 1 times [2020-09-24 21:18:56,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:18:56,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012441319] [2020-09-24 21:18:56,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:18:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:18:56,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:57,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:18:57,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:00,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:01,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:01,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-09-24 21:19:01,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-24 21:19:01,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-09-24 21:19:01,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-24 21:19:01,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 21:19:01,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-24 21:19:01,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:01,835 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:01,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:02,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-09-24 21:19:02,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 21:19:02,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:02,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:02,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:02,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:02,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:02,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:02,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:02,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:02,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:02,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:02,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:02,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:02,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:02,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:02,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:02,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 21:19:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:19:02,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 21:19:02,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-24 21:19:02,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:19:02,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:02,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:02,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:02,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:02,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 21:19:02,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:02,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:02,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-24 21:19:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:02,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 21:19:02,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:02,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:02,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:02,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-24 21:19:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:02,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:02,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:02,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:02,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:02,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 21:19:02,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:19:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 21:19:02,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:19:02,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:02,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:02,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012441319] [2020-09-24 21:19:02,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:02,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 21:19:02,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041130373] [2020-09-24 21:19:02,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 21:19:02,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:02,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 21:19:02,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 21:19:02,445 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 10 states. [2020-09-24 21:19:02,963 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:04,059 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:04,421 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:19:05,204 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:05,604 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,583 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:06,915 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-24 21:19:07,255 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:07,870 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 21:19:08,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:08,517 INFO L93 Difference]: Finished difference Result 642 states and 783 transitions. [2020-09-24 21:19:08,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-24 21:19:08,518 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 171 [2020-09-24 21:19:08,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:08,525 INFO L225 Difference]: With dead ends: 642 [2020-09-24 21:19:08,526 INFO L226 Difference]: Without dead ends: 486 [2020-09-24 21:19:08,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:19:08,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-24 21:19:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 363. [2020-09-24 21:19:08,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-09-24 21:19:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 402 transitions. [2020-09-24 21:19:08,620 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 402 transitions. Word has length 171 [2020-09-24 21:19:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:08,621 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 402 transitions. [2020-09-24 21:19:08,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 21:19:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 402 transitions. [2020-09-24 21:19:08,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-24 21:19:08,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:19:08,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 21:19:08,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:19:08,625 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:19:08,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:19:08,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1643962645, now seen corresponding path program 1 times [2020-09-24 21:19:08,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:19:08,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048029471] [2020-09-24 21:19:08,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:19:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:08,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:08,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:09,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:13,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:13,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-24 21:19:13,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-24 21:19:13,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-24 21:19:13,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:13,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-24 21:19:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-24 21:19:13,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-09-24 21:19:13,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,181 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:19:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-24 21:19:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-24 21:19:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-24 21:19:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-24 21:19:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 21:19:14,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-24 21:19:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:14,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-24 21:19:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:14,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-24 21:19:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:14,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-24 21:19:14,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:19:14,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 21:19:14,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-24 21:19:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:19:14,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-24 21:19:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 21:19:14,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 21:19:14,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 21:19:14,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-24 21:19:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-24 21:19:14,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 21:19:14,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-24 21:19:14,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 21:19:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:19:14,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-24 21:19:14,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 21:19:14,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 21:19:14,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 21:19:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 21:19:14,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 21:19:14,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 21:19:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 21:19:14,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:14,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 21:19:14,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-24 21:19:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 21:19:14,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:19:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:14,731 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 21:19:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:19:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:19:14,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:19:14,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:19:14,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:19:14,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 21:19:14,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: LOWLEXORDER [2020-09-24 21:19:14,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 21:19:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:19:14,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 21:19:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:19:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 21:19:14,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048029471] [2020-09-24 21:19:14,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:19:14,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-24 21:19:14,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038469787] [2020-09-24 21:19:14,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 21:19:14,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:19:14,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 21:19:14,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:19:14,820 INFO L87 Difference]: Start difference. First operand 363 states and 402 transitions. Second operand 11 states. [2020-09-24 21:19:15,458 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 21:19:16,619 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:16,862 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:17,204 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 21:19:17,571 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-24 21:19:17,902 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-24 21:19:18,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:19:18,254 INFO L93 Difference]: Finished difference Result 579 states and 678 transitions. [2020-09-24 21:19:18,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 21:19:18,255 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2020-09-24 21:19:18,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:19:18,257 INFO L225 Difference]: With dead ends: 579 [2020-09-24 21:19:18,257 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 21:19:18,261 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2020-09-24 21:19:18,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 21:19:18,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 21:19:18,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 21:19:18,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 21:19:18,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-09-24 21:19:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:19:18,263 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 21:19:18,263 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 21:19:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 21:19:18,263 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 21:19:18,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:19:18,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 21:19:18,460 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:18,659 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:18,972 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 15 [2020-09-24 21:19:19,161 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:19,473 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 21:19:19,863 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 21:19:19,967 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 12 [2020-09-24 21:19:20,451 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 21:19:20,732 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 21:19:21,020 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 196 [2020-09-24 21:19:21,384 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 21:19:21,739 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 21:19:22,086 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 192 [2020-09-24 21:19:22,246 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:22,413 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:22,573 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:22,740 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:22,916 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:23,099 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:23,242 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 21:19:23,410 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:23,568 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:23,727 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:23,888 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:24,046 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:24,214 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:24,381 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:24,549 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:24,706 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:24,863 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,020 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,178 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,335 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,493 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,650 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:25,817 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:25,974 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:26,134 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:26,302 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:26,471 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:26,631 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:26,800 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:26,968 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:27,138 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:27,300 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:27,480 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:27,660 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:27,831 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:27,998 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:28,166 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:28,331 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:28,500 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:28,755 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10 [2020-09-24 21:19:28,921 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:29,080 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:29,237 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:29,411 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:29,578 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:29,869 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:19:30,209 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:19:30,774 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:19:31,058 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:19:31,345 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 195 [2020-09-24 21:19:31,685 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:19:32,025 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:19:32,364 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 193 [2020-09-24 21:19:32,534 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:32,703 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:32,870 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:33,146 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 10 [2020-09-24 21:19:33,314 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:33,481 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:33,646 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:33,814 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:33,987 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:34,149 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:34,307 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:34,466 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:34,622 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:34,877 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 10 [2020-09-24 21:19:35,044 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:35,205 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 21:19:35,372 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:35,538 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-24 21:19:35,804 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 10 [2020-09-24 21:19:36,255 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 13 [2020-09-24 21:19:36,528 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 28 [2020-09-24 21:19:37,002 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 27 [2020-09-24 21:19:37,429 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 13 [2020-09-24 21:19:37,636 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-09-24 21:19:37,881 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 28 [2020-09-24 21:19:38,119 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187